WAN Technologies Final Exam CH 1-9

Question 1 of 186

1

Refer to the exhibit. Which type of ISP connectivity to the service provider edge is being used by company A?

Select one of the following:

multihomed
dual-multihomed
dual-homed
single-homed

Explanation

Question 2 of 186

1

Refer to the exhibit. Which Cisco Enterprise Architecture module is shown?

Select one of the following:

remote
campus infrastructure
service provider edge
enterprise campus
enterprise edge

Explanation

Question 3 of 186

1

The network design for a college with users at five sites is being developed. Where in the campus network architecture would servers used by all users be located?

Select one of the following:

data center
services
enterprise edge
access-distribution

Explanation

Question 4 of 186

1

Which network architecture functions through a combination of technologies that include wired, wireless, security, and more?

Select one of the following:

Cisco Borderless
Cisco Enterprise Edge
Cisco Enterprise Branch
Cisco Enterprise Campus

Explanation

Question 5 of 186

1

Which network module is the fundamental component of a campus design?

Select one of the following:

services module
enterprise edge
data center
access-distribution module

Explanation

Question 6 of 186

1

What is one advantage to designing networks in building block fashion for large companies?

Select one of the following:

increased network access time
failure isolation
redundancy
mobility

Explanation

Question 7 of 186

1

A network engineer wants to redesign the wireless network and make use of wireless network controllers that manage the many deployed wireless access points. In which network design module of the campus network architecture would the centralized wireless network controllers be found?

Select one of the following:

access-distribution
data center
services
enterprise edge

Explanation

Question 8 of 186

1

Refer to the exhibit. Which type of Cisco hierarchical LAN design model is used at school site 1?

Select one of the following:

three-tier
7 layer
two-tier collapsed core
3 layer

Explanation

Question 9 of 186

1

Which layer of the Cisco Collaboration Architecture contains unified communications and conference software such as Cisco WebEx Meetings, WebEx Social, Cisco Jabber, and TelePresence?

Select one of the following:

applications and devices
services module
enterprise WAN
service provider edge

Explanation

Question 10 of 186

1

Why would a company want network engineers to adhere to structured engineering principles when designing networks?

Select one of the following:

The resiliency of a network depends on being able to modify portions of the network, add services, or increase network capacity without adding new hardware devices.
A hierarchical network model is a useful high-level tool for designing a reliable network infrastructure, although it increases the complexity of network design
The network can be easily designed because of the separation of the various functions that exist on a network into modules.
The network is not expected to remain available under abnormal conditions such as extreme traffic loads or denial-of-service events.

Explanation

Question 11 of 186

1

What is creating a new challenge for IT departments by changing the border of the enterprise network?

Select one of the following:

energy costs
tablets
access layer switching
company-owned desktops

Explanation

Question 12 of 186

1

Which approach in networking allows for network changes, upgrades, or the introduction of new services in a controlled and staged fashion?

Select one of the following:

modular
static
borderless
network module

Explanation

Question 13 of 186

1

Which Cisco technology allows diverse network devices to connect securely, reliably, and seamlessly to enterprise network resources?

Select one of the following:

service provider edge
building distribution
Cisco AnyConnect
enterprise edge

Explanation

Question 14 of 186

1

In which layer of the hierarchical enterprise LAN design model would PoE for VoIP phones and access points be considered?

Select one of the following:

data link
physical
distribution
access
core

Explanation

Question 15 of 186

1

Which network architecture combines individual components to provide a comprehensive solution allowing people to cooperate and contribute to the production of something?

Select one of the following:

Cisco Enterprise Branch Architecture
Cisco Borderless Network Architecture
Cisco Enterprise Campus Architecture
Cisco Collaboration Architecture

Explanation

Question 16 of 186

1

What feature is more important at the core layer than at any other hierarchical network design layer?

Select one of the following:

aggregation of network links
QoS classification and marking
easy access of end devices
packet switching speed
data security

Explanation

Question 17 of 186

1

What are two of the top trends that affect network architecture design? (Choose two.)

Select one or more of the following:

BYOD
Internet security
internal security attacks
speed of Internet connectivity
cloud computing

Explanation

Question 18 of 186

1

Which three network architectures have been introduced by Cisco to address the emerging technology challenges created by the evolving business models? (Choose three.)

Select one or more of the following:

Cisco Borderless
Cisco Collaboration
Cisco Data Center
Cisco Enterprise Campus
Cisco Enterprise Edge
Cisco Enterprise Branch

Explanation

Question 19 of 186

1

What are two structured engineering principles necessary for successful implementation of a network design? (Choose two.)

Select one or more of the following:

modularity
resiliency
availability
security
quality of service

Explanation

Question 20 of 186

1

What is the recommended technology to use over a public WAN infrastructure when a branch office is connected to the corporate site?

Select one of the following:

VPN
ATM
ISDN
municipal Wi-Fi

Explanation

Question 21 of 186

1

Which statement describes cable?

Select one of the following:

Delivering services over a cable network requires downstream frequencies in the 50 to 860 MHz range, and upstream frequencies in the 5 to 42 MHz range
Cable subscribers may expect up to 27 Mbps of bandwidth on the upload path.
Each cable subscriber has dedicated upstream and downstream bandwidth
The cable subscriber must purchase a cable modem termination system (CMTS).

Explanation

Question 22 of 186

1

A home user lives within 10 miles (16 kilometers) of the Internet provider network. Which type of technology provides high-speed broadband service with wireless access for this home user?

Select one of the following:

WiMAX
municipal Wi-Fi
802.11
DSL

Explanation

Question 23 of 186

1

Which feature is used when connecting to the Internet using DSL?

Select one of the following:

DSLAM
CMTS
IEEE 802.16
LTE

Explanation

Question 24 of 186

1

Which wireless technology provides Internet access through cellular networks?

Select one of the following:

LTE
municipal WiFi
WiMAX
satellite

Explanation

Question 25 of 186

1

Which connectivity method would be best for a corporate employee who works from home two days a week, but needs secure access to internal corporate databases?

Select one of the following:

VPN
cable
DSL
WiMAX

Explanation

Question 26 of 186

1

A corporation is looking for a solution to connect multiple, newly established remote branch offices. Which consideration is important when selecting a private WAN connection rather than a public WAN connection?

Select one of the following:

data security and confidentiality during transmission
higher data transmission rate
lower cost
website and file exchange service support

Explanation

Question 27 of 186

1

Which statement describes a characteristic of a WAN?

Select one of the following:

WAN networks are owned by service providers
A WAN provides end-user network connectivity to the campus backbone
All serial links are considered WAN connections
A WAN operates within the same geographic scope of a LAN, but has serial links

Explanation

Question 28 of 186

1

Which two devices are needed when a digital leased line is used to provide a connection between the customer and the service provider? (Choose two.)

Select one or more of the following:

CSU
DSU
dialup modem
access server
Layer 2 switch

Explanation

Question 29 of 186

1

A new corporation needs a data network that must meet certain requirements. The network must provide a low cost connection to sales people dispersed over a large geographical area. Which two types of WAN infrastructure would meet the requirements? (Choose two.)

Select one or more of the following:

public infrastructure
Internet
satellite
dedicated
private infrastructure

Explanation

Question 30 of 186

1

A small company with 10 employees uses a single LAN to share information between computers. Which type of connection to the Internet would be appropriate for this company?

Select one of the following:

a broadband service, such as DSL, through their local service provider
a dialup connection that is supplied by their local telephone service provider
private dedicated lines through their local service provider
Virtual Private Networks that would enable the company to connect easily and securely with employees

Explanation

Question 31 of 186

1

Which WAN technology establishes a dedicated constant point-to-point connection between two sites?

Select one of the following:

leased lines
ISDN
Frame Relay
ATM

Explanation

Question 32 of 186

1

What is a long distance fiber-optic media technology that supports both SONET and SDH, and assigns incoming optical signals to specific wavelengths of light?

Select one of the following:

DWDM
MPLS
ISDN
ATM

Explanation

Question 33 of 186

1

A customer needs a WAN virtual connection that provides high-speed, dedicated bandwidth between two sites. Which type of WAN connection would best fulfill this need?

Select one of the following:

Ethernet WAN
packet-switched network
circuit-switched network
MPLS

Explanation

Question 34 of 186

1

Which WAN technology is cell-based and well suited to carry voice and video traffic?

Select one of the following:

ATM
Frame Relay
VSAT
ISDN

Explanation

Question 35 of 186

1

Which equipment is needed for an ISP to provide Internet connections through cable service?

Select one of the following:

CMTS
DSLAM
access server
CSU/DSU

Explanation

Question 36 of 186

1

Which solution can provide Internet access to remote locations where no regular WAN services are available?

Select one of the following:

VSAT
WiMAX
municipal Wi-Fi
Ethernet

Explanation

Question 37 of 186

1

Which network scenario will require the use of a WAN?

Select one of the following:

Employees need to connect to the corporate email server through a VPN while traveling.
Employees need to access web pages that are hosted on the corporate web servers in the DMZ within their building
Employees in the branch office need to share files with the headquarters office that is located in a separate building on the same campus network
Employee workstations need to obtain dynamically assigned IP addresses

Explanation

Question 38 of 186

1

Which geographic scope requirement would be considered a distributed WAN scope?

Select one of the following:

many-to-many
local
one-to-one
regional
global
one-to-many

Explanation

Question 39 of 186

1

What is an advantage of packet-switched technology over circuit-switched technology?

Select one of the following:

Packet-switched networks can efficiently use multiple routes inside a service provider network.
Packet-switched networks are less susceptible to jitter than circuit-switched networks are
Packet-switched networks usually experience lower latency than circuit-switched networks experience
Packet-switched networks do not require an expensive permanent connection to each endpoint

Explanation

Question 40 of 186

1

What are two common high-bandwidth fiber-optic media standards? (Choose two.)

Select one or more of the following:

SONET
SDH
ATM
ANSI
ITU

Explanation

Question 41 of 186

1

What is a requirement of a connectionless packet-switched network?

Select one of the following:

Full addressing information must be carried in each data packet
Each packet has to carry only an identifier
A virtual circuit is created for the duration of the packet delivery
The network predetermines the route for a packet

Explanation

Question 42 of 186

1

What PPP information will be displayed if a network engineer issues the show ppp multilink command on Cisco router?

Select one of the following:

the serial interfaces participating in the multilink
the IP addresses of the link interfaces
the link LCP and NCP status
the queuing type on the link

Explanation

Question 43 of 186

1

In which situation would the use of PAP be preferable to the use of CHAP?

Select one of the following:

when plain text passwords are needed to simulate login at the remote host
when a network administrator prefers it because of ease of configuration
when multilink PPP is used
when router resources are limited

Explanation

Question 44 of 186

1

Refer to the exhibit. Which statement describes the status of the PPP connection?

Select one of the following:

Neither the link-establishment phase nor the network-layer phase completed successfully.
Only the link-establishment phase completed successfully.
Both the link-establishment and network-layer phase completed successfully.
Only the network-layer phase completed successfully.

Explanation

Question 45 of 186

1

Which serial 0/0/0 interface state will be shown if no serial cable is attached to the router, but everything else has been correctly configured and turned on?

Select one of the following:

Serial 0/0/0 is down, line protocol is down
Serial 0/0/0 is administratively down, line protocol is down
Serial 0/0/0 is up, line protocol is up
Serial 0/0/0 is up, line protocol is down
Serial 0/0/0 is up (looped)
Serial 0/0/0 is up (disabled)

Explanation

Question 46 of 186

1

A network engineer is monitoring an essential, but poor quality, PPP WAN link that periodically shuts down. An examination of the interface configurations shows that the ppp quality 90 command has been issued. What action could the engineer take to reduce the frequency with which the link shuts down?

Select one of the following:

Issue the command ppp quality 70.
Issue the command ppp quality 100
Set the DCE interface to a lower clock rate
Use the bandwidth command to increase the bandwidth of the link

Explanation

Question 47 of 186

1

Which three are types of LCP frames used with PPP? (Choose three.)

Select one or more of the following:

link-establishment frames
link-maintenance frames
link-termination frames
link-control frames
link-negotiation frames
link-acknowledgment frames

Explanation

Question 48 of 186

1

Which command can be used to view the cable type that is attached to a serial interface?

Select one of the following:

Router(config)# show controllers
Router(config)# show ip interface
Router(config)# show ip interface brief
Router(config)# show interfaces

Explanation

Question 49 of 186

1

How does PPP interface with different network layer protocols?

Select one of the following:

by using separate NCPs
by specifying the protocol during link establishment through LCP
by encoding the information field in the PPP frame
by negotiating with the network layer handler

Explanation

Question 50 of 186

1

Which protocol will terminate the PPP link after the exchange of data is complete?

Select one of the following:

LCP
NCP
IPXCP
IPCP

Explanation

Question 51 of 186

1

Which is an advantage of using PPP on a serial link instead of HDLC?

Select one of the following:

option for authentication
option for session establishment
fixed-size frames
higher speed transmission

Explanation

Question 52 of 186

1

At which layer of the OSI model does multiplexing take place?

Select one of the following:

Layer 3
Layer 4
Layer 2
Layer 1

Explanation

Question 53 of 186

1

During a PPP session establishment phase, which two messages are sent by the requested party if the options are not acceptable? (Choose two.)

Select one or more of the following:

Configure-Reject
Configure-Nak
Protocol-Reject
Code-Reject
Discard-Request

Explanation

Question 54 of 186

1

A network engineer is troubleshooting the loss of MPEG video viewing quality as MPEG video files cross a PPP WAN link. What could be causing this loss of quality?

Select one of the following:

The compress command was used when PPP was configured on the interfaces
Link Quality Monitoring was not configured correctly on each interface.
The clock rates configured on each serial interface do not match
PAP authentication was misconfigured on the link interfaces

Explanation

Question 55 of 186

1

Which address is used in the Address field of a PPP frame?

Select one of the following:

a single byte of binary 11111111
a single byte of binary 10101010
the IP address of the serial interface
a single byte of binary 00000000

Explanation

Question 56 of 186

1

Which three physical layer interfaces support PPP? (Choose three.)

Select one or more of the following:

HSSI
asynchronous serial
synchronous serial
FastEthernet
GigabitEthernet
Ethernet

Explanation

Question 57 of 186

1

Refer to the exhibit. A network administrator is configuring the PPP link between the two routers. However, the PPP link cannot be established. Based on the partial output of the show running-config command, what is the cause of the problem?

Select one of the following:

The passwords do not match
The interface IP addresses are in different subnets
The usernames do not match
The passwords should be longer than 8 characters

Explanation

Question 58 of 186

1

Refer to the exhibit. Based on the debug command output that is shown, which statement is true of the operation of PPP.

Select one of the following:

A PPP session was successfully established.
Both PAP and CHAP authentication were attempted
CHAP authentication failed because of an unknown hostname.
The debug output is from router R2.

Explanation

Question 59 of 186

1

Which three statements are true about PPP? (Choose three.)

Select one or more of the following:

PPP uses LCPs to establish, configure, and test the data link connection.
PPP can use synchronous and asynchronous circuits
PPP uses LCPs to agree on format options such as authentication, compression, and error detection.
PPP can only be used between two Cisco devices.
PPP carries packets from several network layer protocols in LCPs.

Explanation

Question 60 of 186

1

Refer to the exhibit. What type of Layer 2 encapsulation will be used for connection D on the basis of this configuration on a newly installed router:
RtrA(config)# interface serial0/0/0
RtrA(config-if)# ip address 128.107.0.2 255.255.255.252
RtrA(config-if)# no shutdown

Select one of the following:

HDLC
PPP
Frame Relay
Ethernet

Explanation

Question 61 of 186

1

Which two functions are provided by the Local Management Interface (LMI) that is used in Frame Relay networks? (Choose two.)

Select one or more of the following:

exchange of information about the status of virtual circuits
simple flow control
mapping of DLCIs to network addresses
error notification
congestion notification

Explanation

Question 62 of 186

1

Refer to the exhibit. A network administrator is configuring Frame Relay subinterfaces on R1. A distance vector routing protocol has also been configured. Data is routing successfully from R1 to networks that are connected to R2, R3, and R4, but routing updates between R2 and R3 are failing. What is the possible cause of this failure?

Select one of the following:

Split horizon is preventing successful routing table updates on the multipoint link
Subinterfaces cannot be used on multipoint Frame Relay links
Multipoint Frame Relay networks cannot be used with this IP addressing scheme
Two DLCI identifiers cannot be configured on one subinterface

Explanation

Question 63 of 186

1

What are the two major criteria that constitute the cost of a Frame Relay circuit? (Choose two.)

Select one or more of the following:

local loop
required bandwidth
QoS
end-to-end connectivity
circuit management fees

Explanation

Question 64 of 186

1

A network administrator uses the following command to configure a Frame Relay connection on a router towards the service provider:
R1(config-if)# frame-relay map ip 209.165.200.225 102 broadcast
What is the purpose of using the broadcast keyword?

Select one of the following:

to support dynamic routing protocol updates across the link
to enable dynamic IP address-to-DLCI mapping
to support IP address to MAC address resolution for the interface in the service provider site
to enable VoIP packet transmission across the link

Explanation

Question 65 of 186

1

Refer to the exhibit. A network administrator issues the show frame-relay map command to troubleshoot the Frame Relay connection problem. Based on the output, what is the possible cause of the problem?

Select one of the following:

The Frame Relay map statement on the R3 router for the PVC to R2 is configured with an incorrect DLCI number.
Inverse ARP is providing false information to the R1 router.
The IP address on S0/0/1 of R3 is configured incorrectly.
The S0/0/1 interface of the R2 router has been configured with the encapsulation frame relay ietf command
The S0/0/1 interface of the R2 router is down.

Explanation

Question 66 of 186

1

Which two Frame Relay router reachability issues are resolved by configuring logical subinterfaces? (Choose two.)

Select one or more of the following:

Link-state routing protocols are unable to complete neighbor discovery
Distance vector routing protocols are unable to forward routing updates back out the incoming interface to other remote routers
Frame Relay is unable to map a remote IP address to a DLCI
LMI status inquiry messages sent to the network are not received
Inverse ARP fails to associate all IP addresses to the correct DLCIs

Explanation

Question 67 of 186

1

Refer to the exhibit. Which two statements are correct? (Choose two.)

Select one or more of the following:

The IPv4 address of interface S0/1/1 on RB is 192.168.1.2
The DLCI that is attached to the VC on RA to RB is 62.
The Frame Relay map was set by using the command frame-relay map.
The IPv4 address of interface S0/1/0 on RA is 192.168.1.2.
The DLCI that is attached to the VC on RB to RA is 62.

Explanation

Question 68 of 186

1

The show frame-relay pvc command is best utilized to display the number for which type of packets that are received by the router?

Select one of the following:

FECN and BECN messages
Inverse ARP messages
Inverse Neighbor Discovery messages
LMI status messages

Explanation

Question 69 of 186

1

Why would a customer request a Frame Relay circuit with a CIR of zero?

Select one of the following:

to have a link with reduced costs
to have a backup circuit for critical data transmissions
to have a circuit used for voice traffic
to have better QoS
to have a circuit used for network management traffic

Explanation

Question 70 of 186

1

Which three notification mechanisms are used when congestion is present in a Frame Relay network? (Choose three.)

Select one or more of the following:

BECN
DE
FECN
inverse ARP
DLCI
CIR

Explanation

Question 71 of 186

1

A router interface connects to a Frame Relay network over a preconfigured logical circuit that does not have a direct electrical connection from end to end. Which type of circuit is being used?

Select one of the following:

PVC
SVC
full mesh
hub and spoke
dedicated leased line

Explanation

Question 72 of 186

1

What is an advantage of Frame Relay WAN technology compared with leased lines?

Select one of the following:

It uses one interface to connect to several remote sites
It supports both voice and data traffic
It provides permanent dedicated capacity to the customers
It offers a guaranteed direct electrical circuit from end to end

Explanation

Question 73 of 186

1

Which three actions can be taken to solve Layer 3 routing protocol router reachability issues when using Frame Relay? (Choose three.)

Select one or more of the following:

Use a full mesh topology
Use subinterfaces
Disable split horizon
Configure static DLCI mappings
Disable Inverse ARP
Use the keyword cisco as the LMI type

Explanation

Question 74 of 186

1

A network administrator has statically configured the LMI type on the interface of a Cisco router that is running Cisco IOS Release 11.2. If the service provider modifies its own LMI type in the future, what step must the network administrator take?

Select one of the following:

The network administrator must statically set the LMI type to be compatible with the service provider
The network administrator simply has to verify connectivity with the provider, because the router has an LMI autosensing feature that automatically detects the LMI type
The network administrator does not have to do anything, because all LMI types are compatible with one another.
The network administrator must modify the keepalive time interval to maintain connectivity with the LMI type of the service provider.

Explanation

Question 75 of 186

1

Which technology allows a Layer 3 IPv4 address to be dynamically obtained from a Layer 2 DLCI?

Select one of the following:

Inverse Address Resolution Protocol
Address Resolution Protocol
Neighbor Discovery
Inverse Neighbor Discovery

Explanation

Question 76 of 186

1

When would the multipoint keyword be used in Frame Relay PVCs configuration?

Select one of the following:

when participating routers are in the same subnet
when using physical interfaces
when global DLCIs are in use
when multicasts must be supported

Explanation

Question 77 of 186

1

A network administrator of a large organization is designing a Frame Relay network. The organization needs redundancy between some key sites but not all. What WAN topology should the administrator choose to meet their needs?

Select one of the following:

partial mesh
star
extended star
full mesh

Explanation

Question 78 of 186

1

A network engineer has issued the interface serial 0/0/1.102 point-to-point command on a router that will be communicating with another router over a Frame Relay virtual circuit that is identified by the DLCI 102. Which two commands would be appropriate for the network engineer to issue next? (Choose two.)

Select one or more of the following:

frame-relay interface-dlci 102
ip address 10.1.1.10 255.255.255.252
no ip address
encapsulation frame relay
no shutdown

Explanation

Question 79 of 186

1

Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented?

Select one of the following:

PAT using an external interface
dynamic NAT with a pool of two public IP addresses
static NAT with a NAT pool
static NAT with one entry

Explanation

Question 80 of 186

1

Refer to the exhibit. What is the purpose of the command marked with an arrow shown in the partial configuration output of a Cisco broadband router?

Select one of the following:

defines which addresses can be translated
defines which addresses are allowed into the router
defines which addresses are allowed out of the router
defines which addresses are assigned to a NAT pool

Explanation

Question 81 of 186

1

What is the purpose of port forwarding?

Select one of the following:

Port forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN.
Port forwarding allows users to reach servers on the Internet that are not using standard port numbers.
Port forwarding allows an internal user to reach a service on a public IPv4 address that is located outside a LAN.
Port forwarding allows for translating inside local IP addresses to outside local addresses

Explanation

Question 82 of 186

1

Which statement accurately describes dynamic NAT?

Select one of the following:

It provides an automated mapping of inside local to inside global IP addresses.
It dynamically provides IP addressing to internal hosts
It always maps a private IP address to a public IP address
It provides a mapping of internal host names to IP addresses.

Explanation

Question 83 of 186

1

Which version of NAT allows many hosts inside a private network to simultaneously use a single inside global address for connecting to the Internet?

Select one of the following:

PAT
port forwarding
dynamic NAT
static NAT

Explanation

Question 84 of 186

1

Refer to the exhibit. R1 is configured for NAT as displayed. What is wrong with the configuration?

Select one of the following:

NAT-POOL2 is not bound to ACL 1.
Interface Fa0/0 should be identified as an outside NAT interface.
The NAT pool is incorrect
Access-list 1 is misconfigured

Explanation

Question 85 of 186

1

What is a disadvantage of NAT?

Select one of the following:

There is no end-to-end addressing
The internal hosts have to use a single public IPv4 address for external communication
The router does not need to alter the checksum of the IPv4 packets.
The costs of readdressing hosts can be significant for a publicly addressed network.

Explanation

Question 86 of 186

1

Which prefix is used for IPv6 ULAs?

Select one of the following:

FC00::/7
2001:7F8::/29
FF02::1:FF00:0/104
2001:DB8:1:2::/64

Explanation

Question 87 of 186

1

How does NAT complicate the use of IPsec?

Select one of the following:

Header values are modified which causes issues with integrity checks.
End-to-end IPv4 traceability is lost.
Troubleshooting is made impossible
Network performance is degraded even more than with just NAT.

Explanation

Question 88 of 186

1

A network administrator configures the border router with the command
R1(config)# ip nat inside source list 4 pool corp
What is required to be configured in order for this particular command to be functional?

Select one of the following:

a NAT pool named corp that defines the starting and ending public IP addresses
ip nat outside to be enabled on the interface that connects to the LAN affected by the NAT
an access list numbered 4 that defines the starting and ending public IP addresses
an access list named corp that defines the private addresses that are affected by NAT
a VLAN named corp to be enabled and active and routed by R1

Explanation

Question 89 of 186

1

What is the group of public IPv4 addresses used on a NAT-enabled router known as?

Select one of the following:

inside global addresses
outside local addresses
outside global addresses
inside local addresses

Explanation

Question 90 of 186

1

Refer to the exhibit. The NAT configuration applied to the router is as follows:
ERtr(config)# access-list 1 permit 10.0.0.0 0.255.255.255
ERtr(config)# ip nat pool corp 209.165.201.6 209.165.201.30 netmask 255.255.255.224
ERtr(config)# ip nat inside source list 1 pool corp overload
ERtr(config)# ip nat inside source static 10.10.10.55 209.165.201.4
ERtr(config)# interface gigabitethernet 0/0
ERtr(config-if)# ip nat inside
ERtr(config-if)# interface serial 0/0/0
ERtr(config-if)# ip nat outside
Based on the configuration and the output shown, what can be determined about the NAT status within the organization?

Select one of the following:

Not enough information is given to determine if both static and dynamic NAT are working.
NAT is working
Static NAT is working, but dynamic NAT is not.
Dynamic NAT is working, but static NAT is not.

Explanation

Question 91 of 186

1

Which configuration would be appropriate for a small business that has the public IP address of 209.165.200.225/30 assigned to the external interface on the router that connects to the Internet?

Select one of the following:

access-list 1 permit 10.0.0.0 0.255.255.255
ip nat inside source list 1 interface serial 0/0/0 overload
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
ip nat inside source static 10.0.0.5 209.165.200.225
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload

Explanation

Question 92 of 186

1

When NAT is employed in a small office, which address type is typically used for hosts on the local LAN?

Select one of the following:

private IP addresses
Internet-routable addresses
both private and public IP addresses
global public IP addresses

Explanation

Question 93 of 186

1

When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?

Select one of the following:

The request to the server for the seventh user fails
All users can access the server
No users can access the server.
The first user gets disconnected when the seventh user makes the request

Explanation

Question 94 of 186

1

Which technology would be used on a router that is running both IPv4 and IPv6?

Select one of the following:

dual stack
NAT for IPv6
dynamic NAT
static NAT

Explanation

Question 95 of 186

1

What is a characteristic of unique local addresses?

Select one of the following:

They allow sites to be combined without creating any address conflicts
They are defined in RFC 3927.
Their implementation depends on ISPs providing the service.
They are designed to improve the security of IPv6 networks

Explanation

Question 96 of 186

1

What are two of the required steps to configure PAT? (Choose two.)

Select one or more of the following:

Identify the inside interface
Define a pool of global addresses to be used for overload translation
Create a standard access list to define applications that should be translated
Define the hello and interval timers to match the adjacent neighbor router
Define the range of source ports to be used

Explanation

Question 97 of 186

1

Which type of NAT maps a single inside local address to a single inside global address?

Select one of the following:

static
dynamic
overloading
port address translation

Explanation

Question 98 of 186

1

Typically, which network device would be used to perform NAT for a corporate environment?

Select one of the following:

router
switch
server
host device
DHCP server

Explanation

Question 99 of 186

1

Which DSL technology provides higher downstream bandwidth to the user than upstream bandwidth?

Select one of the following:

ADSL
TDMA
SDSL
CDMA

Explanation

Question 100 of 186

1

What two layers of the OSI model are defined by DOCSIS? (Choose two.)

Select one or more of the following:

Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Layer 7

Explanation

Question 101 of 186

1

What are two features of wavelengths in the electromagnetic spectrum? (Choose two.)

Select one or more of the following:

They are the distance from the peak of one radio wave to the peak of the next radio wave
They are calculated by the speed of propagation of the electromagnetic signal divided by its frequency in cycles per second
They are the distance from the peak of one radio wave to the trough of the next radio wave
They are the rate at which current or voltage cycles occur
They are calculated by the number of waves per second

Explanation

Question 102 of 186

1

Which two network components does a teleworker require to connect remotely and securely from home to the corporate network? (Choose two.)

Select one or more of the following:

VPN client software or VPN-enabled router
broadband Internet connection
VPN server or concentrator
authentication server
multifunction security appliance

Explanation

Question 103 of 186

1

What are two Layer 2 WAN technologies that can provide secure remote connections between corporate branch offices? (Choose two.)

Select one or more of the following:

Frame Relay
leased lines
QoS
LTE
IPsec

Explanation

Question 104 of 186

1

What are two characteristics of a PPPoE configuration on a Cisco customer router? (Choose two.)

Select one or more of the following:

The Ethernet interface does not have an IP address
The PPP configuration is on the dialer interface
The customer router CHAP username and password are independent of what is configured on the ISP router
The dialer pool command is applied to the Ethernet interface to link it to the dialer interface
An MTU size of 1492 bytes is configured on the Ethernet interface

Explanation

Question 105 of 186

1

Which cable network communication technology is secure, extremely resistant to noise, and employs spread-spectrum technology?

Select one of the following:

S-CDMA
TDMA
FDMA
CDMA

Explanation

Question 106 of 186

1

Which standard specifies the channel frequencies and the deterministic access method of cable networks?

Select one of the following:

DOCSIS
802.16
WiMAX
LTE

Explanation

Question 107 of 186

1

Which technology provides a secure connection between a SOHO and the headquarters office?

Select one of the following:

VPN
PPPoE
WiMax
QoS

Explanation

Question 108 of 186

1

What mobile broadband communication Layer 2 technology uses a special coding scheme to assign each transmitter a specific code?

Select one of the following:

CDMA
FDMA
UMTS
TDMA

Explanation

Question 109 of 186

1

Which type of long distance telecommunication technology provides point-to-point connections and cellular access?

Select one of the following:

WiMax
satellite
municipal Wi-Fi
mobile broadband

Explanation

Question 110 of 186

1

Which medium is used for delivering data via DSL technology through PSTN?

Select one of the following:

fiber
copper
wireless
radio frequency

Explanation

Question 111 of 186

1

What technology provides service providers the capability to use authentication, accounting, and link management features to customers over Ethernet networks?

Select one of the following:

PPPoE
ISDN
DSL
QoS

Explanation

Question 112 of 186

1

Which broadband wireless technology is based on the 802.11 standard?

Select one of the following:

municipal Wi-Fi
UMTS
CDMA
WiMAX

Explanation

Question 113 of 186

1

Which broadband technology would be best for a user that needs remote access when traveling in mountains and at sea?

Select one of the following:

satellite
Wi-Fi Mesh
mobile broadband
WiMax

Explanation

Question 114 of 186

1

What are two disadvantages of employing teleworkers in an organization? (Choose two.)

Select one or more of the following:

the need to implement a new management style
increased difficulty of tracking task progress
slower customer service response times
increase in office expenses
increased usage of sick or vacation days

Explanation

Question 115 of 186

1

A company is looking for the least expensive broadband solution that provides at least 10 Mb/s download speed. The company is located 5 miles from the nearest provider. Which broadband solution would be appropriate?

Select one of the following:

cable
DSL
satellite
WiMax

Explanation

Question 116 of 186

1

What functionality is required on routers to provide remote workers with VoIP and videoconferencing capabilities?

Select one of the following:

QoS
VPN
PPPoE
IPsec

Explanation

Question 117 of 186

1

How is voice traffic affected when the customer uses ADSL technology?

Select one of the following:

ADSL signals can distort voice transmissions
No special equipment is needed to separate voice and data signals
Voice signals are on a separate wire pair from ADSL signals
Voice traffic is interrupted if the ADSL service fails

Explanation

Question 118 of 186

1

What advantage does DSL have compared to cable technology?

Select one of the following:

DSL is not a shared medium
DSL has no distance limitations
DSL is faster
DSL upload and download speeds are always the same

Explanation

Question 119 of 186

1

Which two OSI Layer 1 specifications does DOCSIS define for a cable Internet connection? (Choose two.)

Select one or more of the following:

modulation technique
channel bandwidth
the separation of the voice and data transmissions
VPN tunneling requirements
a deterministic media access method

Explanation

Question 120 of 186

1

Why is the MTU for a PPPoE DSL configuration reduced from 1500 bytes to 1492?

Select one of the following:

to accommodate the PPPoE headers
to establish a secure tunnel with less overhead
to reduce congestion on the DSL link
to enable CHAP authentication

Explanation

Question 121 of 186

1

When PPPoE is configured on a customer router, which two commands must have the same value for the configuration to work? (Choose two.)

Select one or more of the following:

interface dialer 2
ppp chap password 2
ppp chap hostname 2
interface gigabitethernet 0/2
dialer pool 2
pppoe-client dial-pool-number 2

Explanation

Question 122 of 186

1

Two corporations have just completed a merger. The network engineer has been asked to connect the two corporate networks without the expense of leased lines. Which solution would be the most cost effective method of providing a proper and secure connection between the two corporate networks?

Select one of the following:

site-to-site VPN
Cisco Secure Mobility Clientless SSL VPN
Cisco AnyConnect Secure Mobility Client with SSL
Frame Relay
remote access VPN using IPsec

Explanation

Question 123 of 186

1

How can the use of VPNs in the workplace contribute to lower operating costs?

Select one of the following:

VPNs can be used across broadband connections rather than dedicated WAN links.
High-speed broadband technology can be replaced with leased lines
VPNs require a subscription from a specific Internet service provider that specializes in secure connections.
VPNs prevents connectivity to SOHO users

Explanation

Question 124 of 186

1

A network design engineer is planning the implementation of an IPsec VPN. Which hashing algorithm would provide the strongest level of message integrity?

Select one of the following:

512-bit SHA
SHA-1
AES
MD5

Explanation

Question 125 of 186

1

Refer to the exhibit. A tunnel was implemented between routers R1 and R2. Which two conclusions can be drawn from the R1 command output? (Choose two.)

Select one or more of the following:

A GRE tunnel is being used.
The data that is sent across this tunnel is not secure.
This tunnel mode provides encryption
This tunnel mode does not support IP multicast tunneling.
This tunnel mode is not the default tunnel interface mode for Cisco IOS software.

Explanation

Question 126 of 186

1

Which two characteristics describe IPsec VPNs? (Choose two.)

Select one or more of the following:

Specific PC client configuration is required to connect to the VPN.
IPsec authenticates by using shared secrets or digital certificates.
IPsec authentication is one-way or two-way
IPsec is specifically designed for web-enabled applications
Key lengths range from 40 bits to 256 bits

Explanation

Question 127 of 186

1

How is "tunneling" accomplished in a VPN?

Select one of the following:

New headers from one or more VPN protocols encapsulate the original packets.
Packets are disguised to look like other types of traffic so that they will be ignored by potential attackers
All packets between two hosts are assigned to a single physical medium to ensure that the packets are kept private.
A dedicated circuit is established between the source and destination devices for the duration of the connection.

Explanation

Question 128 of 186

1

Which service of IPsec verifies that secure connections are formed with the intended sources of data?

Select one of the following:

authentication
confidentiality
data integrity
encryption

Explanation

Question 129 of 186

1

Which two scenarios are examples of remote access VPNs? (Choose two.)

Select one or more of the following:

A mobile sales agent is connecting to the company network via the Internet connection at a hotel.
An employee who is working from home uses VPN client software on a laptop in order to connect to the company network.
A toy manufacturer has a permanent VPN connection to one of its parts suppliers.
All users at a large branch office can access company resources through a single VPN connection
A small branch office with three employees has a Cisco ASA that is used to create a VPN connection to the HQ

Explanation

Question 130 of 186

1

What is an advantage of using the Cisco Secure Mobility Clientless SSL VPN?

Select one of the following:

Clients do not require special software.
Any device can connect to the network without authentication
Security is provided by prohibiting network access through a browser
Clients use SSH to access network resources

Explanation

Question 131 of 186

1

Which critical function that is provided by IPsec ensures that data has not been changed in transit between the source and destination?

Select one of the following:

integrity
confidentiality
authentication
anti-replay protection

Explanation

Question 132 of 186

1

Which statement describes a feature of site-to-site VPNs?

Select one of the following:

Internal hosts send normal, unencapsulated packets.
The VPN connection is not statically defined.
VPN client software is installed on each host
Individual hosts can enable and disable the VPN connection

Explanation

Question 133 of 186

1

What is an IPsec protocol that provides data confidentiality and authentication for IP packets?

Select one of the following:

ESP
RSA
IKE
AH

Explanation

Question 134 of 186

1

What is the purpose of utilizing Diffie-Hellman (DH) algorithms as part of the IPsec standard?

Select one of the following:

DH algorithms allow two parties to establish a shared secret key that is used by encryption and hash algorithms.
DH algorithms allow two parties to establish a shared public key that is used by encryption and hash algorithms.
DH algorithms allow unlimited parties to establish a shared secret key that is used by encryption and hash algorithms.
DH algorithms allow unlimited parties to establish a shared public key that is used by encryption and hash algorithms.

Explanation

Question 135 of 186

1

Which statement correctly describes IPsec?

Select one of the following:

IPsec works at Layer 3, but can protect traffic from Layer 4 through Layer 7.
IPsec uses algorithms that were developed specifically for that protocol
IPsec implements its own method of authentication
IPsec is a Cisco proprietary standard

Explanation

Question 136 of 186

1

Which two algorithms use Hash-based Message Authentication Code for message authentication? (Choose two.)

Select one or more of the following:

SHA
MD5
DES
3DES
AES

Explanation

Question 137 of 186

1

What key question would help determine whether an organization should use an SSL VPN or an IPsec VPN for the remote access solution of the organization?

Select one of the following:

Do users need to be able to connect without requiring special VPN software?
What applications or network resources do the users need for access?
Are both encryption and authentication required?
Is a Cisco router used at the destination of the remote access tunnel?

Explanation

Question 138 of 186

1

What is the purpose of a message hash in a VPN connection?

Select one of the following:

It ensures that the data has not changed while in transit.
It ensures that the data is coming from the correct source.
It ensures that the data cannot be read in plain text.
It ensures that the data cannot be duplicated and replayed to the destination.

Explanation

Question 139 of 186

1

Which remote access implementation scenario will support the use of generic routing encapsulation tunneling?

Select one of the following:

a central site that connects to a SOHO site without encryption
a mobile user who connects to a router at a central site
a mobile user who connects to a SOHO site
a branch office that connects securely to a central site

Explanation

Question 140 of 186

1

A network design engineer is planning the implementation of a cost-effective method to interconnect multiple networks securely over the Internet. Which type of technology is required?

Select one of the following:

a VPN gateway
a GRE IP tunnel
a leased line
a dedicated ISP

Explanation

Question 141 of 186

1

Refer to the exhibit. Which IP address would be configured on the tunnel interface of the destination router?

Select one of the following:

172.16.1.2
209.165.200.225
172.16.1.1
209.165.200.226

Explanation

Question 142 of 186

1

Which algorithm is an asymmetrical key cryptosystem?

Select one of the following:

RSA
AES
DES
3DES

Explanation

Question 143 of 186

1

Refer to the exhibit. From what location have the syslog messages been retrieved?

Select one of the following:

router RAM
router NVRAM
syslog client
syslog server

Explanation

Question 144 of 186

1

Which syslog message type is accessible only to an administrator and only via the Cisco CLI?

Select one of the following:

debugging
alerts
errors
emergency

Explanation

Question 145 of 186

1

The command ntp server 10.1.1.1 is issued on a router. What impact does this command have?

Select one of the following:

synchronizes the clock of the device to the timeserver that is located at IP address 10.1.1.1
determines which server to send system log files to
ensures that all logging will have a time stamp associated with it
identifies the server on which to store backup configurations

Explanation

Question 146 of 186

1

A network administrator has issued the logging trap 4 global configuration mode command. What is the result of this command?

Select one of the following:

The syslog client will send to the syslog server any event message that has a severity level of 4 and lower.
After four events, the syslog client will send an event message to the syslog server.
The syslog client will send to the syslog server event messages with an identification trap level of only 4.
The syslog client will send to the syslog server any event message that has a severity level of 4 and higher.

Explanation

Question 147 of 186

1

Which protocol is used by network administrators to track and gather statistics on TCP/IP packets that are entering or exiting network devices?

Select one of the following:

NetFlow
NTP
syslog
SNMP

Explanation

Question 148 of 186

1

Which SNMP version uses weak community string-based access control and supports bulk retrieval?

Select one of the following:

SNMPv2c
SNMPv3
SNMPv1
SNMPv2Classic

Explanation

Question 149 of 186

1

A network administrator issues two commands on a router:
R1(config)# snmp-server host 10.10.50.25 version 2c campus
R1(config)# snmp-server enable traps
What can be concluded after the commands are entered?

Select one of the following:

If an interface comes up, a trap is sent to the server
No traps are sent, because the notification-types argument was not specified yet.
The snmp-server enable traps command needs to be used repeatedly if a particular subset of trap types is desired
Traps are sent with the source IP address as 10.10.50.25.

Explanation

Question 150 of 186

1

Refer to the exhibit. While planning an upgrade, a network administrator uses the Cisco NetFlow utility to analyze data flow in the current network. Which protocol used the greatest amount of network time?

Select one of the following:

UDP-other
TCP-Telnet
TCP-FTP
UDP-DNS
TCP-other

Explanation

Question 151 of 186

1

When SNMPv1 or SNMPv2 is being used, which feature provides secure access to MIB objects?

Select one of the following:

community strings
message integrity
packet encryption
source validation

Explanation

Question 152 of 186

1

Which type of information can an administrator obtain with the show ip cache flow command?

Select one of the following:

the protocol that uses the largest volume of traffic
the configuration of the export parameters
the NetFlow version that is enabled
whether NetFlow is configured on the correct interface and in the correct direction

Explanation

Question 153 of 186

1

A network administrator has issued the snmp-server user admin1 admin v3 encrypted auth md5 abc789 priv des 256 key99 command. What are two features of this command? (Choose two.)

Select one or more of the following:

It uses the MD5 authentication of the SNMP messages.
It adds a new user to the SNMP group.
It forces the network manager to log into the agent to retrieve the SNMP messages.
It allows a network administrator to configure a secret encrypted password on the SNMP server.
It restricts SNMP access to defined SNMP managers.

Explanation

Question 154 of 186

1

Which two statements describe items to be considered in configuring NetFlow? (Choose two.)

Select one or more of the following:

Netflow can only be used in a unidirectional flow
NetFlow consumes additional memory
Netflow requires both management and agent software.
NetFlow can only be used if all devices on the network support it
Netflow requires UDP port 514 for notification messages

Explanation

Question 155 of 186

1

What are the most common syslog messages?

Select one of the following:

link up and link down messages
output messages that are generated from debug output
those that occur when a packet matches a parameter condition in an access control list
error messages about hardware or software malfunctions

Explanation

Question 156 of 186

1

Which destination do Cisco routers and switches use by default when sending syslog messages for all severity levels?

Select one of the following:

console
nearest syslog server
NVRAM
RAM

Explanation

Question 157 of 186

1

Refer to the exhibit. What does the number 17:46:26.143 represent?

Select one of the following:

the time when the syslog message was issued
the time passed since the syslog server has been started
the time on the router when the show logging command was issued
the time passed since the interfaces have been up

Explanation

Question 158 of 186

1

Refer to the exhibit. What can be concluded from the produced output?

Select one of the following:

An ACL was configured to restrict SNMP access to an SNMP manager.
This is the output of the show snmp command without any parameters.
The location of the device was not configured with the snmp-server location command.
The system contact was not configured with the snmp-server contact command.

Explanation

Question 159 of 186

1

Which protocol or service can be configured to send unsolicited messages to alert the network administrator about a network event such as an extremely high CPU utilization on a router?

Select one of the following:

SNMP
NTP
syslog
NetFlow

Explanation

Question 160 of 186

1

When logging is used, which severity level indicates that a device is unusable?

Select one of the following:

Emergency - Level 0
Critical - Level 2
Alert - Level 1
Error - Level 3

Explanation

Question 161 of 186

1

Which protocol or service allows network administrators to receive system messages that are provided by network devices?

Select one of the following:

syslog
NetFlow
NTP
SNMP

Explanation

Question 162 of 186

1

What is the most common purpose of implementing NetFlow in a networked environment?

Select one of the following:

to support accounting and monitoring with consumer applications
to passively capture changing events that occur in the network and to perform after-the-fact-analysis
to actively capture traffic from networked devices
to monitor live data usage and to control traffic flow with set messages

Explanation

Question 163 of 186

1

Which statement describes SNMP operation?

Select one of the following:

A set request is used by the NMS to change configuration variables in the agent device.
An SNMP agent that resides on a managed device collects information about the device and stores that information remotely in the MIB that is located on the NMS
An NMS periodically polls the SNMP agents that are residing on managed devices by using traps to query the devices for data
A get request is used by the SNMP agent to query the device for data

Explanation

Question 164 of 186

1

How does NetFlow function on a Cisco router or multilayer switch?

Select one of the following:

One user connection to an application exists as two NetFlow flows.
Netflow captures and analyzes traffic
NetFlow does not consume any additional memory.
On 2960 switches, Netlow allows for data export

Explanation

Question 165 of 186

1

Which SNMP feature provides a solution to the main disadvantage of SNMP polling?

Select one of the following:

SNMP trap messages
SNMP community strings
SNMP set messages
SNMP get messages

Explanation

Question 166 of 186

1

A user in a large office calls technical support to complain that a PC has suddenly lost connectivity to the network. The technician asks the caller to talk to nearby users to see if other machines are affected. The caller reports that several immediate neighbors in the same department have a similar problem and that they cannot ping each other. Those who are seated in other departments have connectivity. What should the technician check as the first step in troubleshooting the issue?

Select one of the following:

the status of the departmental workgroup switch in the wiring closet
the cable connection between a PC and a network outlet that is used by a neighbor
the cable that connects the PC of the caller to the network jack
the trunks between switches in the wiring closet
the power outlet to the PC that is used by the caller

Explanation

Question 167 of 186

1

When should a network performance baseline be measured?

Select one of the following:

during normal work hours of an organization
immediately after the main network devices restarted
after normal work hours to reduce possible interruptions
when a denial of service attack to the network is detected and blocked

Explanation

Question 168 of 186

1

What is a purpose of establishing a network baseline?

Select one of the following:

It creates a point of reference for future network evaluations.
It manages the performance of network devices
It provides a statistical average for network performance
It checks the security configuration of network devices

Explanation

Question 169 of 186

1

A network technician is troubleshooting an email connection problem. Which question to the end-user will provide clear information to better define the problem?

Select one of the following:

When did you first notice your email problem?
What kind of equipment are you using to send emails?
How big are the emails you tried to send?
Is your email working now?

Explanation

Question 170 of 186

1

In which step of gathering symptoms does the network engineer determine if the problem is at the core, distribution, or access layer of the network?

Select one of the following:

Narrow the scope
Determine the symptoms
Document the symptoms
Gather information
Determine ownership

Explanation

Question 171 of 186

1

Which number represents the most severe level of syslog logging?

Select one of the following:

0
10
1
7
100

Explanation

Question 172 of 186

1

A team of engineers has identified a solution to a significant network problem. The proposed solution is likely to affect critical network infrastructure components. What should the team follow while implementing the solution to avoid interfering with other processes and infrastructure?

Select one of the following:

change-control procedures
knowledge base guidelines
one of the layered troubleshooting approaches
syslog messages and reports

Explanation

Question 173 of 186

1

After which step in the network troubleshooting process would one of the layered troubleshooting methods be used?

Select one of the following:

gathering symptoms from suspect devices
documenting symptoms
determining ownership
narrowing the scope

Explanation

Question 174 of 186

1

Which type of tool would an administrator use to capture packets that are going to and from a particular device?

Select one of the following:

protocol analyzer
baselining tool
NMS tool
knowledge base

Explanation

Question 175 of 186

1

Which troubleshooting method begins by examining cable connections and wiring issues?

Select one of the following:

bottom-up
top-down
divide-and-conquer
substitution

Explanation

Question 176 of 186

1

An administrator is troubleshooting an Internet connectivity problem on a router. The output of the show interfaces gigabitethernet 0/0 command reveals higher than normal framing errors on the interface that connects to the Internet. At what layer of the OSI model is the problem likely occurring?

Select one of the following:

Layer 2
Layer 1
Layer 3
Layer 4
Layer 7

Explanation

Question 177 of 186

1

A company is setting up a web site with SSL technology to protect the authentication credentials required to access the web site. A network engineer needs to verify that the setup is correct and that the authentication is indeed encrypted. Which tool should be used?

Select one of the following:

protocol analyzer
baselining tool
fault-management tool
cable analyzer

Explanation

Question 178 of 186

1

Which statement describes the physical topology for a LAN?

Select one of the following:

It defines how hosts and network devices connect to the LAN.
It shows the order in which hosts access the network
It describes whether the LAN is a broadcast or token-passing network.
It depicts the addressing scheme that is employed in the LAN.

Explanation

Question 179 of 186

1

A network engineer is troubleshooting a network problem and can successfully ping between two devices. However, Telnet between the same two devices does not work. Which OSI layers should the administrator investigate next?

Select one of the following:

from the network layer to the application layer
from the network layer to the physical layer
only the network layer
all of the layers

Explanation

Question 180 of 186

1

The newly configured ASBR that connects a company to the Internet has a default route configured and has the default-information originate command entered. Devices connected through this router can access the Internet. The problem is that no other OSPF routers have a default route in the routing table and no other users throughout the organization can access the Internet. What could be the problem?

Select one of the following:

The ASBR does not have an OSPF neighbor.
The ASBR does not have OSPF configured
The other routers are not configured to accept LSA type 4s.
The ASBR should use the exit_interface argument instead of next-hop on the default route.

Explanation

Question 181 of 186

1

Users report that the new web site http://www.company1.biz cannot be accessed. The helpdesk technician checks and verifies that the web site can be accessed with http://www.company1.biz:90. Which layer in the TCP/IP model is involved in troubleshooting this issue?

Select one of the following:

transport
application
internet
network access

Explanation

Question 182 of 186

1

A user reports that after an OS patch of the networking subsystem has been applied to a workstation, it performs very slowly when connecting to network resources. A network technician tests the link with a cable analyzer and notices that the workstation sends an excessive number of frames smaller than 64 bytes and also other meaningless frames. What is the possible cause of the problem?

Select one of the following:

corrupted NIC driver
corrupted application installation
cabling faults
Ethernet signal attenuation

Explanation

Question 183 of 186

1

Which two specialized troubleshooting tools can monitor the amount of traffic that passes through a switch? (Choose two.)

Select one or more of the following:

NAM
portable network analyzer
digital multimeter
DTX cable analyzer
TDR

Explanation

Question 184 of 186

1

A group of Windows PCs in a new subnet has been added to an Ethernet network. When testing the connectivity, a technician finds that these PCs can access local network resources but not the Internet resources. To troubleshoot the problem, the technician wants to initially confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the local router. Which three Windows CLI commands and utilities will provide the necessary information? (Choose three.)

Select one or more of the following:

ping
nslookup
ipconfig
tracert
netsh interface ipv6 show neighbor
arp -a
telnet

Explanation

Question 185 of 186

1

A networked PC is having trouble accessing the Internet, but can print to a local printer and ping other computers in the area. Other computers on the same network are not having any issues. What is the problem?

Select one of the following:

The PC has a missing or incorrect default gateway
The link between the switch to which the PC connects and the default gateway router is down
The default gateway router does not have a default route
The switch port to which the PC connects has an incorrect VLAN configured

Explanation

Question 186 of 186

1

An internal corporate server can be accessed by internal PCs, but not by external Internet users that should have access. What could be the issue?

Select one of the following:

Static NAT has not been configured properly or at all.
The default gateway router for the server does not have a default route
The server does not have a private IP address assigned
The switch port to which the server connects has an incorrect VLAN configured

	Created by Anthony Schulmeister about 8 years ago

WAN Technologies CH 1-9 Final Exam

WAN Technologies Final Exam CH 1-9

Question 1 of 186

Refer to the exhibit. Which type of ISP connectivity to the service provider edge is being used by company A?

Select one of the following:

Explanation

Question 2 of 186

Refer to the exhibit. Which Cisco Enterprise Architecture module is shown?

Select one of the following:

Explanation

Question 3 of 186

The network design for a college with users at five sites is being developed. Where in the campus network architecture would servers used by all users be located?

Select one of the following:

Explanation

Question 4 of 186

Which network architecture functions through a combination of technologies that include wired, wireless, security, and more?

Select one of the following:

Explanation

Question 5 of 186

Which network module is the fundamental component of a campus design?

Select one of the following:

Explanation

Question 6 of 186

What is one advantage to designing networks in building block fashion for large companies?

Select one of the following:

Explanation

Question 7 of 186

A network engineer wants to redesign the wireless network and make use of wireless network controllers that manage the many deployed wireless access points. In which network design module of the campus network architecture would the centralized wireless network controllers be found?

Select one of the following:

Explanation

Question 8 of 186

Refer to the exhibit. Which type of Cisco hierarchical LAN design model is used at school site 1?

Select one of the following:

Explanation

Question 9 of 186

Which layer of the Cisco Collaboration Architecture contains unified communications and conference software such as Cisco WebEx Meetings, WebEx Social, Cisco Jabber, and TelePresence?

Select one of the following:

Explanation

Question 10 of 186

Why would a company want network engineers to adhere to structured engineering principles when designing networks?

Select one of the following:

Explanation

Question 11 of 186

What is creating a new challenge for IT departments by changing the border of the enterprise network?

Select one of the following:

Explanation

Question 12 of 186

Which approach in networking allows for network changes, upgrades, or the introduction of new services in a controlled and staged fashion?

Select one of the following:

Explanation

Question 13 of 186

Which Cisco technology allows diverse network devices to connect securely, reliably, and seamlessly to enterprise network resources?

Select one of the following:

Explanation

Question 14 of 186

In which layer of the hierarchical enterprise LAN design model would PoE for VoIP phones and access points be considered?

Select one of the following:

Explanation

Question 15 of 186

Which network architecture combines individual components to provide a comprehensive solution allowing people to cooperate and contribute to the production of something?

Select one of the following:

Explanation

Question 16 of 186

What feature is more important at the core layer than at any other hierarchical network design layer?

Select one of the following:

Explanation

Question 17 of 186

What are two of the top trends that affect network architecture design? (Choose two.)

Select one or more of the following:

Explanation

Question 18 of 186

Which three network architectures have been introduced by Cisco to address the emerging technology challenges created by the evolving business models? (Choose three.)

Select one or more of the following:

Explanation

Question 19 of 186

What are two structured engineering principles necessary for successful implementation of a network design? (Choose two.)

Select one or more of the following:

Explanation

Question 20 of 186

What is the recommended technology to use over a public WAN infrastructure when a branch office is connected to the corporate site?