CCNA2

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Pregunta 1 de 98

Which type of static route is configured with a greater administrative distance to provide a backup route to a route learned from a dynamic routing protocol?

Selecciona una de las siguientes respuestas posibles:

standard static route
summary static route
default static route
floating static route

Explicación

Pregunta 2 de 98

A network administrator reviews the routing table on the router and sees a route to the destination network 172.16.64.0/18 with a next-hop IP address of 192.168.1.1. What are two descriptions of this route? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

default route
parent route
level 2 child route
ultimate route
supernet route

Explicación

Pregunta 3 de 98

Which two factors are important when deciding which interior gateway routing protocol to use? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

scalability
ISP selection
speed of convergence
the autonomous system that is used
campus backbone architecture

Explicación

Pregunta 4 de 98

Employees of a company connect their wireless laptop computers to the enterprise LAN via wireless access points that are cabled to the Ethernet ports of switches. At which layer of the three-layer hierarchical network design model do these switches operate?

Selecciona una de las siguientes respuestas posibles:

physical
core
access
data link
distribution

Explicación

Pregunta 5 de 98

What is a basic function of the Cisco Borderless Architecture access layer?

Selecciona una de las siguientes respuestas posibles:

aggregates Layer 2 broadcast domains
aggregates Layer 3 routing boundaries
provides access to the user
provides fault isolation

Explicación

Pregunta 6 de 98

What network prefix and prefix-length combination is used to create a default static route that will match any IPv6 destination?

Selecciona una de las siguientes respuestas posibles:

::1/64
FFFF:/128
:/128
::/0

Explicación

Pregunta 7 de 98

A router has used the OSPF protocol to learn a route to the 172.16.32.0/19 network. Which command will implement a backup floating static route to this network?

Selecciona una de las siguientes respuestas posibles:

ip route 172.16.0.0 255.255.240.0 S0/0/0 200
ip route 172.16.32.0 255.255.224.0 S0/0/0 200
ip route 172.16.0.0 255.255.224.0 S0/0/0 100
ip route 172.16.32.0 255.255.0.0 S0/0/0 100

Explicación

Pregunta 8 de 98

Which statement describes a route that has been learned dynamically?

Selecciona una de las siguientes respuestas posibles:

It is automatically updated and maintained by routing protocols
It is unaffected by changes in the topology of the network
It has an administrative distance of 1
It is identified by the prefix C in the routing table

Explicación

Pregunta 9 de 98

Compared with dynamic routes, what are two advantages of using static routes on a router? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

They automatically switch the path to the destination network when the topology changes
They Improve network security
They take less time to converge when the network topology changes
They use fewer router resources
They improve the efficiency of discovering neighboring networks

Explicación

Pregunta 10 de 98

To enable RIP routing for a specific subnet, the configuration command network 172.16.64.32 was entered by the network administrator. What address, if any, appears in the running configuration file to identify this network?

Selecciona una de las siguientes respuestas posibles:

172.16.64.32
172.16.64.0
172.16.0.0
No address is displayed

Explicación

Pregunta 11 de 98

A network administrator adds the default-information originate command to the configuration of a router that uses RIP as the routing protocol. What will result from adding this command?

Selecciona una de las siguientes respuestas posibles:

The router will only forward packets that originate on directly connected networks.
The router will propagate a static default route in its RIP updates, if one is present
The router will be reset to the default factory information
The router will not forward routing information that is learned from other routers

Explicación

Pregunta 12 de 98

Which route will a router use to forward an IPv4 packet after examining its routing table for the best match with the destination address?

Selecciona una de las siguientes respuestas posibles:

a level 1 parent route
a level 1 child route
a level 1 ultimate route
a level 2 supernet route

Explicación

Pregunta 13 de 98

What is a characteristic of the distribution layer in the three layer hierarchical model?

Selecciona una de las siguientes respuestas posibles:

provides access to the rest of the network through switching, routing, and network access policies
distributes access to end users
represents the network edge
acts as the backbone for the network, aggregating and distributing network traffic throughout the campus

Explicación

Pregunta 14 de 98

Which information does a switch use to populate the MAC address table?

Selecciona una de las siguientes respuestas posibles:

the destination MAC address and the incoming port
the destination MAC address and the outgoing port
the source and destination MAC addresses and the incoming port
the source and destination MAC addresses and the outgoing port
the source MAC address and the incoming port
the source MAC address and the outgoing port

Explicación

Pregunta 15 de 98

Which statement is correct about Ethernet switch frame forwarding decisions?

Selecciona una de las siguientes respuestas posibles:

Unicast frames are always forwarded regardless of the destination MAC address
Frame forwarding decisions are based on MAC address and port mappings in the CAM table
Cut-through frame forwarding ensures that invalid frames are always dropped
Only frames with a broadcast destination address are forwarded out all active switch ports

Explicación

Pregunta 16 de 98

What is the name of the layer in the Cisco borderless switched network design that would have more switches deployed than other layers in the network design of a large organization?

Selecciona una de las siguientes respuestas posibles:

access
core
data link
network
network access

Explicación

Pregunta 17 de 98

Which switching method drops frames that fail the FCS check?

Selecciona una de las siguientes respuestas posibles:

borderless switching
cut-through switching
ingress port buffering
store-and-forward switching

Explicación

Pregunta 18 de 98

In what situation would a Layer 2 switch have an IP address configured ?

Selecciona una de las siguientes respuestas posibles:

when the Layer 2 switch is using a routed port
when the Layer 2 switch needs to be remotely managed
when the Layer 2 switch is the default gateway of user traffic
when the Layer 2 switch needs to forward user traffic to another device

Explicación

Pregunta 19 de 98

A network administrator is configuring a new Cisco switch for remote management access. Which three items must be configured on the switch for the task? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

vty lines
VTP domain
loopback address
default gateway
default VLAN
IP address

Explicación

Pregunta 20 de 98

A network technician has been asked to secure all switches in the campus network. The security requirements are for each switch to automatically learn and add MAC addresses to both the address table and the running configuration. Which port security configuration will meet these requirements?

Selecciona una de las siguientes respuestas posibles:

auto secure MAC addresses
dynamic secure MAC addresses
static secure MAC addresses
sticky secure MAC addresses

Explicación

Pregunta 21 de 98

A network administrator is configuring port security on a Cisco switch. When a violation occurs, which violation mode that is configured on an interface will cause packets with an unknown source address to be dropped with no notification sent?

Selecciona una de las siguientes respuestas posibles:

off
restrict
protect
shutdown

Explicación

Pregunta 22 de 98

Two employees in the Sales department work different shifts with their laptop computers and share the same Ethernet port in the office. Which set of commands would allow only these two laptops to use the Ethernet port and create violation log entry without shutting down the port if a violation occurs?

Selecciona una de las siguientes respuestas posibles:

switchport mode access
switchport port-security
switchport mode access*
switchport port-security*
switchport port-security maximum 2*
switchport port-security mac-address sticky*
switchport port-security violation restrict*
switchport mode access
switchport port-security maximum 2
switchport port-security mac-address sticky
switchport mode access
switchport port-security maximum 2
switchport port-security mac-address sticky
switchport port-security violation protect

Explicación

Pregunta 23 de 98

A Cisco Catalyst switch has been added to support the use of multiple VLANs as part of an enterprise network. The network technician finds it necessary to clear all VLAN information from the switch in order to incorporate a new network design. What should the technician do to accomplish this task?

Selecciona una de las siguientes respuestas posibles:

Erase the startup configuration and reboot the switch
Erase the running configuration and reboot the switch
Delete the startup configuration and the vlan.dat file in the flash memory of the switch and reboot the switch
Delete the IP address that is assigned to the management VLAN and reboot the switch

Explicación

Pregunta 24 de 98

What will a Cisco LAN switch do if it receives an incoming frame and the destination MAC address is not listed in the MAC address table?

Selecciona una de las siguientes respuestas posibles:

Drop the frame.
Send the frame to the default gateway address.
Use ARP to resolve the port that is related to the frame.
Forward the frame out all ports except the port where the frame is received.

Explicación

Pregunta 25 de 98

What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value?

Selecciona una de las siguientes respuestas posibles:

The switches will negotiate via VTP which VLANs to allow across the trunk
Only VLAN 1 will be allowed across the trunk.
Only the native VLAN will be allowed across the trunk
All VLANs will be allowed across the trunk

Explicación

Pregunta 26 de 98

A network administrator is designing an ACL. The networks 192.168.1.0/25, 192.168.0.0/25, 192.168.0.128/25, 192.168.1.128/26, and 192.168.1.192/26 are affected by the ACL. Which wildcard mask, if any, is the most efficient to use when specifying all of these networks in a single ACL permit entry?

Selecciona una de las siguientes respuestas posibles:

0.0.0.127
0.0.0.255
0.0.1.255
0.0.255.255
A single ACL command and wildcard mask should not be used to specify these particular networks or other traffic will be permitted or denied and present a security risk.

Explicación

Pregunta 27 de 98

The computers used by the network administrators for a school are on the 10.7.0.0/27 network. Which two commands are needed at a minimum to apply an ACL that will ensure that only devices that are used by the network administrators will be allowed Telnet access to the routers? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

access-class 5 in
access-list 5 deny any
access-list standard VTY
permit 10.7.0.0 0.0.0.127
access-list 5 permit 10.7.0.0 0.0.0.31
ip access-group 5 out
ip access-group 5 in

Explicación

Pregunta 28 de 98

A network engineer has created a standard ACL to control SSH access to a router. Which command will apply the ACL to the VTY lines?

Selecciona una de las siguientes respuestas posibles:

access-group 11 in
access-class 11 in
access-list 11 in
access-list 110 in

Explicación

Pregunta 29 de 98

What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?

Selecciona una de las siguientes respuestas posibles:

to notify other hosts not to request the same IP address
for hosts on other subnets to receive the information
for routers to fill their routing tables with this new information
to notify other DHCP servers on the subnet that the IP address was leased

Explicación

Pregunta 30 de 98

Which set of commands will configure a router as a DHCP server that will assign IPv4 addresses to the 192.168.100.0/23 LAN while reserving the first 10 and the last addresses for static assignment?

Selecciona una de las siguientes respuestas posibles:

ip dhcp excluded-address 192.168.100.1 192.168.100.10
ip dhcp excluded-address 192.168.100.254
ip dhcp pool LAN POOL-100
network 192.168.100.0 255.255.255.0
ip default gateway 192.168.100.1
ip dhcp excluded-address 192.168.100.1 192.168.100.9
ip dhcp excluded-address 192.168.101.254
ip dhcp pool LAN POOL-100 ip
network 192.168.100.0 255.255.254.0
ip default-gateway 192.168.100.1
ip dhcp excluded-address 192.168.100.1 192.168.100.10
ip dhcp excluded-address 192.168.101.254
ip dhcp pool LAN POOL-100
network 192.168.100.0 255.255.254.0
default-router 192.168.100.1
dhcp pool LAN-POOL 100
ip dhcp excluded-address 192.168.100.1 192.168.100.9
ip dhcp excluded-address 192.168.100.254
network 192.168.100.0 255.255.254.0
default-router 192.168.101.1

Explicación

Pregunta 31 de 98

Which command, when issued in the interface configuration mode of a router, enables the interface to acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled?

Selecciona una de las siguientes respuestas posibles:

ip dhcp pool
ip address dhcp
service dhcp
ip helper-address

Explicación

Pregunta 32 de 98

What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?

Selecciona una de las siguientes respuestas posibles:

address of the IPv6 enabled interface
a randomly generated 64-bit hexadecimal address
an IPv6 address that is provided by a DHCPv6 server
an IPv4 address that is configured on the interface

Explicación

Pregunta 33 de 98

Which type of traffic would most likely have problems when passing through a NAT device?

Selecciona una de las siguientes respuestas posibles:

Telnet
IPsec
HTTP
ICMP
DNS

Explicación

Pregunta 34 de 98

A small company has a web server in the office that is accessible from the Internet. The IP address 192.168.10.15 is assigned to the web server. The network administrator is configuring the router so that external clients can access the web server over the Internet. Which item is required in the NAT configuration?

Selecciona una de las siguientes respuestas posibles:

an IPv4 address pool
an ACL to identify the local IPv4 address of the web server
the keyword overload for the ip nat inside source command
the ip nat inside source command to link the inside local and inside global addresses

Explicación

Pregunta 35 de 98

A college marketing department has a networked storage device that uses the IP address 10.18.7.5, TCP port 443 for encryption, and UDP port 4365 for video streaming. The college already uses PAT on the router that connects to the Internet. The router interface has the public IP address of 209.165.200.225/30. The IP NAT pool currently uses the IP addresses ranging from 209.165.200.228.236. Which configuration would the network administrator add to allow this device to be accessed by the marketing personnel from home?

Selecciona una de las siguientes respuestas posibles:

ip nat inside source static tcp 209.165.200.225 443 10.18.7.5 443
ip nat inside source static udp 209.165.200.225 4365 10.18.7.5 4365
No additional configuration is necessary
ip nat pool mktv 10.18.7.5 10.18.7.5
ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443
ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365
ip nat outside source static 10.18.7.5 209.165.200.225

Explicación

Pregunta 36 de 98

A network engineer is interested in obtaining specific information relevant to the operation of both distribution and access layer Cisco devices. Which command provides common information relevant to both types of devices?

Selecciona una de las siguientes respuestas posibles:

show port-security
show ip interface
show ip protocols
show mac-address-table
show cdp neighbors

Explicación

Pregunta 37 de 98

Which two statements are correct if a configured NTP master on a network cannot reach any clock with a lower stratum number? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

The NTP master will claim to be synchronized at the configured stratum number.
An NTP server with a higher stratum number will become the master
Other systems will be willing to synchronize to that master using NTP
The NTP master will be the clock with 1 as its stratum number.
The NTP master will lower its stratum number.

Explicación

Pregunta 38 de 98

What are three functions provided by the syslog service? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

to specify the destinations of captured messages
to periodically poll agents for data
to select the type of logging information that is captured
to gather logging information for monitoring and troubleshooting
to provide traffic analysis
to provide statistics on packets that are flowing through a Cisco device

Explicación

Pregunta 39 de 98

When a customer purchases a Cisco IOS 15.0 software package, what serves as the receipt for that customer and is used to obtain the license as well?

Selecciona una de las siguientes respuestas posibles:

Software Claim Certificate
Unique Device Identifier
End User License Agreement
Product Activation Key

Explicación

Pregunta 40 de 98

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?

Selecciona una de las siguientes respuestas posibles:

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
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
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

Explicación

Pregunta 41 de 98

What benefit does NAT64 provide?

Selecciona una de las siguientes respuestas posibles:

It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address.
It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses.
It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses.
It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from hosts on public IPv4 networks.

Explicación

Pregunta 42 de 98

What is the effect of configuring the ipv6 unicast-routing command on a router?

Selecciona una de las siguientes respuestas posibles:

to assign the router to the all-nodes multicast group
to enable the router as an IPv6 router
to permit only unicast packets on the router
to prevent the router from joining the all-routers multicast group

Explicación

Pregunta 43 de 98

What is a characteristic of a static route that creates a gateway of last resort?

Selecciona una de las siguientes respuestas posibles:

It backs up a route already discovered by a dynamic routing protocol.
It uses a single network address to send multiple static routes to one destination address.
It identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route
t is configured with a higher administrative distance than the original dynamic routing protocol has.

Explicación

Pregunta 44 de 98

Which network design may be recommended for a small campus site that consists of a single building with a few users?

Selecciona una de las siguientes respuestas posibles:

a network design where the access and distribution layers are collapsed into a single layer
a network design where the access and core layers are collapsed into a single layer
a collapsed core network design
a three-tier campus network design where the access, distribution, and core are all separate layers, each one with very specific functions

Explicación

Pregunta 45 de 98

Which information does a switch use to keep the MAC address table information current?

Selecciona una de las siguientes respuestas posibles:

the destination MAC address and the incoming port
the destination MAC address and the outgoing port
the source and destination MAC addresses and the incoming port
the source and destination MAC addresses and the outgoing port
the source MAC address and the incoming port
the source MAC address and the outgoing port

Explicación

Pregunta 46 de 98

Which advantage does the store-and-forward switching method have compared with the cut-through switching method?

Selecciona una de las siguientes respuestas posibles:

collision detecting
frame error checking
faster frame forwarding
frame forwarding using IPv4 Layer 3 and 4 information

Explicación

Pregunta 47 de 98

Which characteristic describes cut-through switching?

Selecciona una de las siguientes respuestas posibles:

Frames are forwarded without any error checking.
Error-free fragments are forwarded, so switching accurs with lower latency.
Buffering is used to support different Ethernet speeds.
Only outgoing frames are checked for errors.

Explicación

Pregunta 48 de 98

What is a result of connecting two or more switches together?

Selecciona una de las siguientes respuestas posibles:

The number of broadcast domains is increased.
The size of the broadcast domain is increased.
The number of collision domains is reduced.
The size of the collision domain is increased.

Explicación

Pregunta 49 de 98

A part of the new security policy, all switches on the network are configured to automatically learn MAC addresses for each port. All running configurations are saved at the start and close of every business day. A severe thunderstorm causes an extended power outage several hours after the close of business. When the switches are brought back online, the dynamically learned MAC addresses are retained. Which port security configuration enabled this?

Selecciona una de las siguientes respuestas posibles:

auto secure MAC addresses
dynamic secure MAC addresses
static secure MAC addresses
sticky secure MAC addresses

Explicación

Pregunta 50 de 98

Which commands are used to re-enable a port that has been disabled as a result of a port security violation?

Selecciona una de las siguientes respuestas posibles:

shutdown
no shutdown
shutdown
no switchport port-securityshutdown
no switchport port-security violation shutdown
shutdown
no switchport port-security maximum

Explicación

Pregunta 51 de 98

Which two characteristics describe the native VLAN? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN.
The native VLAN traffic will be untagged across the trunk link.
This VLAN is necessary for remote management of a switch.
High priority traffic, such as voice traffic, uses the native VLAN.
The native VLAN provides a common identifier to both ends of a trunk.

Explicación

Pregunta 52 de 98

Which type of traffic is designed for a native VLAN?

Selecciona una de las siguientes respuestas posibles:

management
user-generated
tagged
untagged

Explicación

Pregunta 53 de 98

Which statement describes a characteristic of the extended range VLANs that are created on a Cisco 2960 switch?

Selecciona una de las siguientes respuestas posibles:

They are numbered VLANs 1002 to 1005.
They cannot be used across multiple switches.
They are reserved to support Token Ring VLANs.
They are not stored in the vlan.dat file.

Explicación

Pregunta 54 de 98

A network administrator is using the router-on-a-stick method to configure inter-VLAN routing. Switch port Gi1/1 is used to connect to the router. Which command should be entered to prepare this port for the task?

Selecciona una de las siguientes respuestas posibles:

Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# spanning-tree vlan 1
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# spanning-tree portfast
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# switchport mode trunk
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# switchport access vlan 1

Explicación

Pregunta 55 de 98

What will be the result of adding the command ip dhcp excluded-address 172.16.4.1 172.16.4.5 to the configuration of a local router that has been configured as a DHCP server?

Selecciona una de las siguientes respuestas posibles:

Traffic that is destined for 172.16.4.1 and 172.16.4.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 172.16.4.1 and 172.16.4.5.
The DHCP server function of the router will not issue the addresses from 172.16.4.1 through 172.16.4.5 inclusive.
The router will ignore all traffic that comes from the DHCP servers with addresses 172.16.4.1 and 172.16.4.5.

Explicación

Pregunta 56 de 98

A host on the 10.10.100.0/24 LAN is not being assigned an IPv4 address by an enterprise DHCP server with the address 10.10.200.10/24. What is the best way for the network engineer to resolve this problem?

Selecciona una de las siguientes respuestas posibles:

Issue the command ip helper-address 10.10.200.10 on the router interface that is the 10.10.100.0/24 gateway.
Issue the command default-router 10.10.200.10 at the DHCP configuration prompt on the 10.10.100.0/24 LAN gateway router.
Issue the command ip helper-address 10.10.100.0 on the router interface that is the 10.10.200.0/24 gateway.
Issue the command network 10.10.200.0 255.255.255.0 at the DHCP configuration prompt on the 10.10.100.0/24 LAN gateway router.

Explicación

Pregunta 57 de 98

What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?

Selecciona una de las siguientes respuestas posibles:

the MAC address of the IPv6 enabled interface
a randomly generated 64-bit hexadecimal address
an IPv6 address that is provided by a DHCPv6 server
an IPv4 address that is configured on the interface

Explicación

Pregunta 58 de 98

An administrator is trying to remove configurations from a switch. After using the command erase startup-config and reloading the switch, the administrator finds that VLANs 10 and 100 still exist on the switch. Why were these VLANs not removed?

Selecciona una de las siguientes respuestas posibles:

These VLANs are default VLANs that cannot be removed.
These VLANs cannot be deleted unless the switch is in VTP client mode.
These VLANs can only be removed from the switch by using the no vlan 10 and no vlan 100 commands.
Because these VLANs are stored in a file that is called vlan.dat that is located in flash memory, this file must be manually deleted.

Explicación

Pregunta 59 de 98

A network administrator is configuring an ACL with the command access-list 10 permit 172.16.32.0 0.0.15.255. Which IPv4 address matches the ACE?

Selecciona una de las siguientes respuestas posibles:

172.16.20.2
172.16.26.254
172.16.47.254
172.16.48.5

Explicación

Pregunta 60 de 98

A network administrator is verifying a configuration that involves network monitoring. What is the purpose of the global configuration command logging trap 4?

Selecciona una de las siguientes respuestas posibles:

System messages will be forwarded to the number following the logging trap argument.
System messages that exist in levels 4-7 must be forwarded to a specific logging server.
System messages that match logging levels 0-4 will be forwarded to a specified logging device.
System messages will be forwarded using a SNMP version that matches the argument that follows the logging trap command.

Explicación

Pregunta 61 de 98

What is indicated by the M in the Cisco IOS image name c1900-universalk9-mz.SPA.153-3.M.bin?

Selecciona una de las siguientes respuestas posibles:

maintenance deployment release
a minor release
a mainline release
an extended maintenance release

Explicación

Pregunta 62 de 98

Refer to the exhibit. Which highlighted value represents a specific destination network in the routing table?

Selecciona una de las siguientes respuestas posibles:

0.0.0.0
172.16.100.64
172.16.100.2
110
791

Explicación

Pregunta 63 de 98

On which two routers would a default static route be configured? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

stub router connection to the rest of the corporate or campus network
any router where a backup route to dynamic routing is needed for reliability
edge router connection to the ISP
any router running an IOS prior to 12.0
the router that serves as the gateway of last resort

Explicación

Pregunta 64 de 98

Refer to the exhibit. R1 was configured with the static route command ip route 209.165.200.224 255.255.255.224 S0/0/0 and consequently users on network 172.16.0.0/16 are unable to reach resources on the Internet. How should this static route be changed to allow user traffic from the LAN to reach the Internet?

Selecciona una de las siguientes respuestas posibles:

Add an administrative distance of 254.
Change the destination network and mask to 0.0.0.0 0.0.0.0
Change the exit interface to S0/0/1.
Add the next-hop neighbor address of 209.165.200.226.

Explicación

Pregunta 65 de 98

What is the purpose of the Cisco PAK?

Selecciona una de las siguientes respuestas posibles:

It is a key for enabling an IOS feature set.
It is a proprietary encryption algorithm.
It is a compression file type used when installing IOS 15 or an IOS upgrade.
It is a way to compress an existing IOS so that a newer IOS version can be co-installed on a router.

Explicación

Pregunta 66 de 98

Refer to the exhibit. Assuming that the routing tables are up to date and no ARP messages are needed, after a packet leaves H1, how many times is the L2 header rewritten in the path to H2?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 67 de 98

Refer to the exhibit. Which highlighted value represents a specific destination network in the routing table?

Selecciona una de las siguientes respuestas posibles:

0.0.0.0
10.16.100.128
10.16.100.2
110
791

Explicación

Pregunta 68 de 98

Refer to the exhibit. Which route was configured as a static route to a specific network using the next-hop address?

Selecciona una de las siguientes respuestas posibles:

S 10.17.2.0/24 [1/0] via 10.16.2.2
S 0.0.0.0/0 [1/0] via 10.16.2.2
C 10.16.2.0/24 is directly connected, Serial0/0/0
S 10.17.2.0/24 is directly connected, Serial 0/0/0

Explicación

Pregunta 69 de 98

Refer to the exhibit. Currently router R1 uses an EIGRP route learned from Branch2 to reach the 10.10.0.0/16 network. Which floating static route would create a backup route to the 10.10.0.0/16 network in the event that the link between R1 and Branch2 goes down?

Selecciona una de las siguientes respuestas posibles:

ip route 10.10.0.0 255.255.0.0 Serial 00/0 100
ip route 10.10.0.0 255.255.0.0 209.165.200.226 100
ip route 10.10.0.0 255.255.0.0 209.165.200.225 100
ip route 10.10.0.0 255.255.0.0 209.165.200.225 50

Explicación

Pregunta 70 de 98

Refer to the exhibit. What is the administrative distance value that indicates the route for R2 to reach the 10.10.0.0/16 network?

Selecciona una de las siguientes respuestas posibles:

1
0
90
20512256

Explicación

Pregunta 71 de 98

Refer to the exhibit. An administrator is attempting to install an IPv6 static route on router R1 to reach the network attached to router R2. After the static route command is entered, connectivity to the network is still failing. What error has been made in the static route configuration?

Selecciona una de las siguientes respuestas posibles:

The network prefix is incorrect.
The destination network is incorrect.
The interface is incorrect
The next hop address is incorrect.

Explicación

Pregunta 72 de 98

Refer to the exhibit. What protocol should be configured on SW-A Port 0/1 if it is to send traffic from multiple VLANs to switch SW-B?

Selecciona una de las siguientes respuestas posibles:

RIP v2
IEEE 802.1Q
Spanning Tree
ARP
Rapid Spanning Tree

Explicación

Pregunta 73 de 98

Refer to the exhibit. A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon. What is the missing parameter that is shown as the highlighted question mark in the graphic?

Selecciona una de las siguientes respuestas posibles:

It identifies the type of encapsulation that is used
It identifies the VLAN number
It identifies the subinterface
It identifies the number of hosts that are allowed on the interface
It identifies the native VLAN number

Explicación

Pregunta 74 de 98

Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?

Selecciona una de las siguientes respuestas posibles:

The default gateway address is not provided in the pool.
No clients have communicated with the DHCPv6 server yet.
The IPv6 DHCP pool configuration has no IPv6 address range specified.
The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.

Explicación

Pregunta 75 de 98

Refer to the exhibit. R1 has been configured as shown. However, PC1 is not able to receive an IPv4 address. What is the problem?

Selecciona una de las siguientes respuestas posibles:

A DHCP server must be installed on the same LAN as the host that is receiving the IP address.
R1 is not configured as a DHCPv4 server.
The ip address dhcp command was not issued on the interface Gi0/1.
The ip helper-address command was applied on the wrong interface.

Explicación

Pregunta 76 de 98

Refer to the exhibit. Which statement shown in the output allows router R1 to respond to stateless DHCPv6 requests?

Selecciona una de las siguientes respuestas posibles:

ipv6 unicast-routing
ipv6 nd other-config-flag
ipv6 dhcp server LAN1
prefix-delegation 2001:DB8:8::/48 00030001000E84244E70
dns-server 2001:DB8:8::8

Explicación

Pregunta 77 de 98

Refer to the exhibit. NAT is configured on Remote and Main. The PC is sending a request to the web server. What IPv4 address is the source IP address in the packet between Main and the web server?

Selecciona una de las siguientes respuestas posibles:

10.130.5.76
209.165.200.245
203.0.113.5
172.16.1.10
192.0.2.1
209.165.200.226

Explicación

Pregunta 78 de 98

Refer to the exhibit. Which two statements are correct based on the output as shown in the exhibit? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

The host with the address 209.165.200.235 will respond to requests by using a source address of 209.165.200.235
The output is the result of the show ip nat translations command
Traffic with the destination address of a public web server will be sourced from the IP of 192.168.1.10.
The host with the address 209.165.200.235 will respond to requests by using a source address of 192.168.10.10.
The output is the result of the show ip nat statistics command

Explicación

Pregunta 79 de 98

Refer to the exhibit. A network administrator has configured R2 for PAT. Why is the configuration incorrect?

Selecciona una de las siguientes respuestas posibles:

NAT-POOL2 is bound to the wrong ACL
The ACL does not define the list of addresses to be translated.
The overload keyword should not have been applied.
The static NAT entry is missing

Explicación

Pregunta 80 de 98

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

Selecciona una de las siguientes respuestas posibles:

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

Explicación

Pregunta 81 de 98

Refer to the exhibit. An administrator is trying to configure PAT on R1, but PC-A is unable to access the Internet. The administrator tries to ping a server on the Internet from PC-A and collects the debugs that are shown in the exhibit. Based on this output, what is most likely the cause of the problem?

Selecciona una de las siguientes respuestas posibles:

The inside and outside NAT interlaces have been configured backwards
The inside global address is not on the same subnet as the ISP
The address on Fa0/0 should be 64.100.0.1.
The NAT source access list matches the wrong address range.

Explicación

Pregunta 82 de 98

Refer to the exhibit. Which three hosts will receive ARP requests from host A, assuming that port Fa0/4 on both switches is configured to carry traffic for multiple VLANs? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

host B
host C
host D
host E
host F
host G

Explicación

Pregunta 83 de 98

Refer to the exhibit. An administrator is examining the message in a syslog server. What can be determined from the message?

Selecciona una de las siguientes respuestas posibles:

This is an error message that indicates the system is unusable.
This is an alert message for which immediate action is needed
This is an error message for which warning conditions exist
This is a notification message for a normal but significant condition

Explicación

Pregunta 84 de 98

Refer to the exhibit. The network administrator enters these commands into the R1 router:
R1# copy running-config tftp
Address or name of remote host [ ]?When the router prompts for an address or remote host name, what IP address should the administrator enter at the prompt?

Selecciona una de las siguientes respuestas posibles:

192.168.10.2
192.168.11.252
192.168.11.254
192.168.9.254
192.168.10.1

Explicación

Pregunta 85 de 98

Refer to the exhibit. Host A has sent a packet to host B. What will be the source MAC and IP addresses on the packet when it arrives at host B?

Selecciona una de las siguientes respuestas posibles:

Source MAC: 00E0.FE10.17A3
Source IP: 10.1.1.10Source MAC: 00E0.FE91.7799
Source IP: 10.1.1.1Source MAC: 00E0.FE91.7799
Source IP: 192.168.1.1
Source MAC: 00E0.FE91.7799
Source IP: 10.1.1.10
Source MAC: 00E0.FE10.17A3
Source IP: 192.168.1.1

Explicación

Pregunta 86 de 98

Refer to the exhibit. Which route was configured as a static route to a specific network using the next-hop address?

Selecciona una de las siguientes respuestas posibles:

S 0.0.0.0/0 [1/0] via 172.16.2.2
S 192.168.2.0/24 is directly connected. Serial 0/0/0
S 192.168.2.0/24 [1/0] via 172.16.2.2
C 172.16.2.0/24 is directly connected. Serial0/0/0

Explicación

Pregunta 87 de 98

Refer to the exhibit. Which command will properly configure an IPv6 static route on R2 that will allow traffic from PC2 to reach PC1 without any recursive lookups by router R2?

Selecciona una de las siguientes respuestas posibles:

R2(config)# ipv6 route 2001:db8:10:12::/64 2001:db8:32::1
R2(config)# ipv6 route 2001:db8:10:12::/64 S0/0/0
R2(config)# ipv6 route ::/0 2001:db8:32::1
R2(config)# ipv6 route 2001:db8:10:12::/64 S0/0/1

Explicación

Pregunta 88 de 98

Refer to the exhibit. Inter-VLAN communication between VLAN 10, VLAN 20, and VLAN 30 is not successful. What is the problem?

Selecciona una de las siguientes respuestas posibles:

The access interfaces do not have IP addresses and each should be configured with an IP address.
The switch interface FastEthernet0/1 is configured as an access interface and should be configured as a trunk interface.
The switch interface FastEthernet0/1 is configured to not negotiate and should be configured to negotiate.
The switch interfaces FastEthernet0/2, FastEthernet0/3, and FastEthernet0/4 are configured to not negotiate and should be configured to negotiate.

Explicación

Pregunta 89 de 98

Refer to the exhibit. A PC at address 10.1.1.45 is unable to access the Internet. What is the most likely cause of the problem?

Selecciona una de las siguientes respuestas posibles:

The NAT pool has been exhausted.
The wrong netmask was used on the NAT pool.
Access-list 1 has not been configured properly.
The inside and outside interfaces have been configured backwards.

Explicación

Pregunta 90 de 98

Refer to the exhibit. A network engineer is preparing to upgrade the IOS system image on a Cisco 2901 router. Based on the output shown, how much space is available for the new image?

Selecciona una de las siguientes respuestas posibles:

25574400 bytes
249856000 bytes
221896413 bytes
33591768 bytes

Explicación

Pregunta 91 de 98

Refer to the exhibit. Based on the exhibited configuration and output, why is VLAN 99 missing?

Selecciona una de las siguientes respuestas posibles:

because there is a cabling problem on VLAN 99
because VLAN 99 is not a valid management VLAN
because VLAN 1 is up and there can only be one management VLAN on the switch
because VLAN 99 needs to be entered as a VLAN under an interface before it can become an active interface
because the VLAN 99 has not been manually entered into the VLAN database with the vlan 99 command

Explicación

Pregunta 92 de 98

Refer to the exhibit. Assuming that the routing tables are up to date and no ARP messages are needed, after a packet leaves H1, how many times is the L2 header rewritten in the path to H3?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 93 de 98

The exhibit shows two PCs called PC A and PC B, two routes called R1 and R2, and two switches. PC A has the address 172.16.1.1/24 and is connected to a switch and into an interface on R1 that has the IP address 172.16.1.254. PC B has the address 172.16.2.1/24 and is connected to a switch that is connected to another interface on R1 with the IP address 172.16.2.254. The serial interface on R1 has the address 172.16.3.1 and is connected to the serial interface on R2 that has the address 172.16.3.2/24. R2 is connected to the internet cloud. Which command will create a static route on R2 in order to reach PC B?

Selecciona una de las siguientes respuestas posibles:

R2(config)# ip route 172.16.2.1 255.255.255.0 172.16.3.1
R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.2.254
R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.3.1
R2(config)# ip route 172.16.3.0 255.255.255.0 172.16.2.254

Explicación

Pregunta 94 de 98

Refer to the exhibit. Router R1 has an OSPF neighbor relationship with the ISP router over the 192.168.0.32 network. The 192.168.0.36 network link should serve as a backup when the OSPF link goes down. The floating static route command ip route 0.0.0.0 0.0.0.0 S0/0/1 100 was issued on R1 and now traffic is using the backup link even when the OSPF link is up and functioning. Which change should be made to the static route command so that traffic will only use the OSPF link when it is up?

Selecciona una de las siguientes respuestas posibles:

Add the next hop neighbor address of 192.168.0.36.
Change the administrative distance to 1.
Change the destination network to 192.168.0.34.
Change the administrative distance to 120.

Explicación

Pregunta 95 de 98

Refer to the exhibit. All hosts and router interfaces are configured correctly. Pings to the server from both H1 and H2 and pings between H1 and H2 are not successful. What is causing this problem?

Selecciona una de las siguientes respuestas posibles:

RIPv2 does not support VLSM.
RIPv2 is misconfigured on router R1.
RIPv2 is misconfigured on router R2.
RIPv2 is misconfigured on router R3.
RIPv2 does not support discontiguous networks.

Explicación

Pregunta 96 de 98

Refer to the exhibit.
A company has an internal network of 172.16.25.0/24 for their employee workstations and a DMZ network of 172.16.12.0/24 to host servers. The company uses NAT when inside hosts connect to outside network. A network administrator issues the show ip nat translations command to check the NAT configurations. Which one of source IPv4 addresses is translated by R1 with PAT?

Selecciona una de las siguientes respuestas posibles:

10.0.0.31
172.16.12.5
172.16.12.33
192.168.1.10
172.16.25.35

Explicación

Pregunta 97 de 98

Refer to the exhibit. A small business uses VLANs 2, 3, 4, and 5 between two switches that have a trunk link between them. What native VLAN should be used on the trunk if Cisco best practices are being implemented?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 98 de 98

Refer to the exhibit. NAT is configured on RT1 and RT2. The PC is sending a request to the web server. What IPv4 address is the source IP address in the packet between RT2 and the web server?

Selecciona una de las siguientes respuestas posibles:

192.0.2.2
172.16.1.10
203.0.113.10
172.16.1.254
192.168.1.5
209.165.200.245

Explicación

Revisar respuesta

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	Creado por Adil Zhumabekov hace más de 6 años

Я надеюсь, что этот тест поможет вам со сдачей экзамена:)

CCNA2

Pregunta 1 de 98

Which type of static route is configured with a greater administrative distance to provide a backup route to a route learned from a dynamic routing protocol?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 2 de 98

A network administrator reviews the routing table on the router and sees a route to the destination network 172.16.64.0/18 with a next-hop IP address of 192.168.1.1. What are two descriptions of this route? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 3 de 98

Which two factors are important when deciding which interior gateway routing protocol to use? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 98

Employees of a company connect their wireless laptop computers to the enterprise LAN via wireless access points that are cabled to the Ethernet ports of switches. At which layer of the three-layer hierarchical network design model do these switches operate?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 5 de 98

What is a basic function of the Cisco Borderless Architecture access layer?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 98

What network prefix and prefix-length combination is used to create a default static route that will match any IPv6 destination?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 7 de 98

A router has used the OSPF protocol to learn a route to the 172.16.32.0/19 network. Which command will implement a backup floating static route to this network?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 8 de 98

Which statement describes a route that has been learned dynamically?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 9 de 98

Compared with dynamic routes, what are two advantages of using static routes on a router? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 98

To enable RIP routing for a specific subnet, the configuration command network 172.16.64.32 was entered by the network administrator. What address, if any, appears in the running configuration file to identify this network?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 11 de 98

A network administrator adds the default-information originate command to the configuration of a router that uses RIP as the routing protocol. What will result from adding this command?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 12 de 98

Which route will a router use to forward an IPv4 packet after examining its routing table for the best match with the destination address?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 13 de 98

What is a characteristic of the distribution layer in the three layer hierarchical model?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 14 de 98

Which information does a switch use to populate the MAC address table?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 15 de 98

Which statement is correct about Ethernet switch frame forwarding decisions?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 16 de 98

What is the name of the layer in the Cisco borderless switched network design that would have more switches deployed than other layers in the network design of a large organization?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 17 de 98

Which switching method drops frames that fail the FCS check?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 18 de 98

In what situation would a Layer 2 switch have an IP address configured ?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 19 de 98

A network administrator is configuring a new Cisco switch for remote management access. Which three items must be configured on the switch for the task? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 20 de 98

A network technician has been asked to secure all switches in the campus network. The security requirements are for each switch to automatically learn and add MAC addresses to both the address table and the running configuration. Which port security configuration will meet these requirements?