WAN Technologies CH 1-3 Exam

Frage 1 von 62

1

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

Wähle eine der folgenden:

multihomed
dual-multihomed
dual-homed
single-homed

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Frage 2 von 62

1

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

Wähle eine der folgenden:

remote
campus infrastructure
service provider edge
enterprise campus
enterprise edge

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Frage 3 von 62

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?

Wähle eine der folgenden:

data center
services
enterprise edge
access-distribution

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Frage 4 von 62

1

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

Wähle eine der folgenden:

Cisco Borderless
Cisco Enterprise Edge
Cisco Enterprise Branch
Cisco Enterprise Campus

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Frage 5 von 62

1

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

Wähle eine der folgenden:

services module
enterprise edge
data center
access-distribution module

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Frage 6 von 62

1

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

Wähle eine der folgenden:

increased network access time
failure isolation
redundancy
mobility

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Frage 7 von 62

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?

Wähle eine der folgenden:

access-distribution
data center
services
enterprise edge

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Frage 8 von 62

1

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

Wähle eine der folgenden:

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

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Frage 9 von 62

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?

Wähle eine der folgenden:

applications and devices
services module
enterprise WAN
service provider edge

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Frage 10 von 62

1

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

Wähle eine der folgenden:

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.

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Frage 11 von 62

1

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

Wähle eine der folgenden:

energy costs
tablets
access layer switching
company-owned desktops

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Frage 12 von 62

1

Fülle die Lücke, um den Text zu vervollständigen

Under the Cisco Enterprise Edge module, the submodule that provides remote access including authentication and IPS appliances is the and remote access submodule.

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Frage 13 von 62

1

Which product corresponds to a layer of the Cisco Collaboration Architecture?

Wähle eine der folgenden:

Cisco Unified Management Solutions
Unified Fabric Solutions
Mobility with Cisco Motion
Network and Computer Infrastructure

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Frage 14 von 62

1

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

Wähle eine der folgenden:

static
borderless
network module
modular

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Frage 15 von 62

1

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

Wähle eine der folgenden:

service provider edge
building distribution
Cisco AnyConnect
enterprise edge

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Frage 16 von 62

1

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

Wähle eine der folgenden:

data link
physical
distribution
access
core

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Frage 17 von 62

1

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

Wähle eine der folgenden:

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

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Frage 18 von 62

1

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

Wähle eine der folgenden:

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

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Frage 19 von 62

1

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

Wähle eine oder mehr der folgenden:

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

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Frage 20 von 62

1

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

Wähle eine oder mehr der folgenden:

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

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Frage 21 von 62

1

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

Wähle eine oder mehr der folgenden:

modularity
availability
resiliency
security
quality of service

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Frage 22 von 62

1

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

Wähle eine der folgenden:

VPN
ATM
ISDN
municipal Wi-Fi

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Frage 23 von 62

1

Which statement describes cable?

Wähle eine der folgenden:

Cable subscribers may expect up to 27 Mbps of bandwidth on the upload path.
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.
Each cable subscriber has dedicated upstream and downstream bandwidth.
The cable subscriber must purchase a cable modem termination system (CMTS).

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Frage 24 von 62

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?

Wähle eine der folgenden:

802.11
municipal Wi-Fi
WiMAX
DSL

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Frage 25 von 62

1

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

Wähle eine der folgenden:

CMTS
LTE
IEEE 802.16
DSLAM

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Frage 26 von 62

1

Which wireless technology provides Internet access through cellular networks?

Wähle eine der folgenden:

municipal Wi-Fi
LTE
WiMAX
satellite

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Frage 27 von 62

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?

Wähle eine der folgenden:

WiMAX
DSL
cable
VPN

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Frage 28 von 62

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?

Wähle eine der folgenden:

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

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Frage 29 von 62

1

Which statement describes a characteristic of a WAN?

Wähle eine der folgenden:

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.
WAN networks are owned by service providers.

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Frage 30 von 62

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.)

Wähle eine oder mehr der folgenden:

CSU
dialup modem
DSU
access server
Layer 2 switch

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Frage 31 von 62

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.)

Wähle eine oder mehr der folgenden:

private infrastructure
public infrastructure
Internet
satellite
dedicated

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Frage 32 von 62

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?

Wähle eine der folgenden:

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

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Frage 33 von 62

1

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

Wähle eine der folgenden:

leased lines
ISDN
Frame Relay
ATM

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Frage 34 von 62

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?

Wähle eine der folgenden:

DWDM
MPLS
ISDN
ATM

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Frage 35 von 62

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?

Wähle eine der folgenden:

packet-switched network
Ethernet WAN
circuit-switched network
MPLS

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Frage 36 von 62

1

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

Wähle eine der folgenden:

ATM
Frame Relay
VSAT
ISDN

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Frage 37 von 62

1

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

Wähle eine der folgenden:

DSLAM
CMTS
access server
CSU/DSU

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Frage 38 von 62

1

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

Wähle eine der folgenden:

WiMAX
municipal Wi-Fi
VSAT
Ethernet

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Frage 39 von 62

1

Which network scenario will require the use of a WAN?

Wähle eine der folgenden:

Employee workstations need to obtain dynamically assigned IP addresses.
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.
Employees need to access web pages that are hosted on the corporate web servers in the DMZ within their building.
Employees need to connect to the corporate email server through a VPN while traveling.

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Frage 40 von 62

1

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

Wähle eine der folgenden:

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

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Frage 41 von 62

1

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

Wähle eine der folgenden:

Packet-switched networks are less susceptible to jitter than circuit-switched networks are.
Packet-switched networks can efficiently use multiple routes inside a service provider network.
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.

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Frage 42 von 62

1

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

Wähle eine oder mehr der folgenden:

SONET
SDH
ATM
ANSI
ITU

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Frage 43 von 62

1

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

Wähle eine der folgenden:

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

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Frage 44 von 62

1

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

Wähle eine der folgenden:

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

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Frage 45 von 62

1

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

Wähle eine der folgenden:

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

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Frage 46 von 62

1

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

Wähle eine der folgenden:

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.

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Frage 47 von 62

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?

Wähle eine der folgenden:

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

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Frage 48 von 62

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?

Wähle eine der folgenden:

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.

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Frage 49 von 62

1

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

Wähle eine oder mehr der folgenden:

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

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Frage 50 von 62

1

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

Wähle eine der folgenden:

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

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Frage 51 von 62

1

How does PPP interface with different network layer protocols?

Wähle eine der folgenden:

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

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Frage 52 von 62

1

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

Wähle eine der folgenden:

NCP
IPXCP
LCP
IPCP

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Frage 53 von 62

1

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

Wähle eine der folgenden:

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

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Frage 54 von 62

1

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

Wähle eine der folgenden:

Layer 4
Layer 3
Layer 2
Layer 1

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Frage 55 von 62

1

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

Wähle eine oder mehr der folgenden:

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

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Frage 56 von 62

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?

Wähle eine der folgenden:

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

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Frage 57 von 62

1

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

Wähle eine der folgenden:

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

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Frage 58 von 62

1

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

Wähle eine oder mehr der folgenden:

synchronous serial
Ethernet
GigabitEthernet
asynchronous serial
HSSI
FastEthernet

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Frage 59 von 62

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?

Wähle eine der folgenden:

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

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Frage 60 von 62

1

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

Wähle eine der folgenden:

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

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Frage 61 von 62

1

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

Wähle eine oder mehr der folgenden:

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

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Frage 62 von 62

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

Wähle eine der folgenden:

PPP
Ethernet
Frame Relay
HDLC

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