In a lab test environment, a router has learned about network 172.16.1.0 through four different dynamic routing processes. Which route will be used to reach this network?

D 172.16.1.0/24 [90/2195456] via 192.168.200.1, 00:00:09, Serial0/0/0
O 172.16.1.0/24 [110/1012] via 192.168.200.1, 00:00:22, Serial0/0/0
R 172.16.1.0/24 [120/1] via 192.168.200.1, 00:00:17, Serial0/0/0
I 172.16.1.0/24 [100/1192] via 192.168.200.1, 00:00:09, Serial0/0/0

Refer to the exhibit. All routers are properly configured with default configurations and are running the OSPF routing protocol. The network is fully converged. A host on the 192.168.3.0/24 network is communicating with a host on the 192.168.2.0/24 network.

Refer to the exhibit. All routers are properly configured with default configurations and are running the OSPF routing protocol. The network is fully converged. A host on the 192.168.3.0/24 network is communicating with a host on the 192.168.2.0/24 network.
Which path will be used to transmit the data?


The data will be transmitted via R3-R2.
The data will be transmitted via R3-R1-R2.
The traffic will be load-balanced between two paths — one via R3-R2, and the other via R3-R1-R2.
The data will be transmitted via R3-R2, and the other path via R3-R1-R2 will be retained as the backup path.

Refer to the exhibit. The command ip route 0.0.0.0 0.0.0.0 S0/0/0 is run on router R2. What are the two results of this command? (Choose two.)

A static route will be updated in the routing table.
The traffic from the Internet will be directed to R2.
The traffic from the source network 172.16.0.0/22 will be blocked.
The route will be specified as the default route for all networks not defined in the routing table.
All the broadcasts will be forwarded via the S0/0/0 interface of R2.

Refer to the exhibit. The hosts that are connected to R2 are unable to ping the hosts that are connected to R1. How can this problem be resolved?

Configure the router ID on both routers.
Configure the R2 router interfaces for area 0.
Configure a loopback interface on both routers.
Configure the proper subnet masks on the router interfaces.

Refer to the exhibit. The interfaces of all routers are configured for OSPF area 0. R3 can ping R1, but the two routers are unable to establish a neighbor adjacency. What should the network administrator do to troubleshoot this problem?

Refer to the exhibit. The interfaces of all routers are configured for OSPF area 0. R3 can ping R1, but the two routers are unable to establish a neighbor adjacency. What should the network administrator do to troubleshoot this problem?


Check if the interfaces of the routers are enabled.
Check the hello and dead intervals between the routers.
Check the process ID of both routers.
Check if CDP is enabled on all the routers.

Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces and are both running the EIGRP routing protocol. R1 and R2 can ping the directly connected serial interface of their neighbor, but they cannot form an EIGRP neighbor adjacency.

Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces and are both running the EIGRP routing protocol. R1 and R2 can ping the directly connected serial interface of their neighbor, but they cannot form an EIGRP neighbor adjacency.
What action should be taken to solve this problem?


Enable the serial interfaces of both routers.
Configure EIGRP to send periodic updates.
Configure the same hello interval between the routers.
Configure both routers with the same EIGRP process ID.

Refer to the exhibit. R1 is configured properly for a single area OSPF, and R2 has been recently installed in the network. Which set of commands is required to configure a single area OSPF for the networks that are connected to R2?

R2(config)# router ospf 1
R2(config-router)# network 192.168.2.0 0.0.0.255 area 0
R2(config-router)# network 10.1.1.0 0.0.0.3 area 0

R2(config)# router ospf 1
R2(config-router)# network 192.168.2.0 0.0.0.255 area 0

R2(config)# router ospf 2
R2(config-router)# network 10.1.1.0 0.0.0.3 area 0

Refer to the exhibit. Host A is unable to access the Internet. What is the reason for this?

The IP address of host A is incorrect.
The default gateway of host A is incorrect.
The Fa0/1 interfaces of the two routers are configured for different subnets.
The subnet mask for the Fa0/0 interface of R1 is incorrect.

A router has learned two equal cost paths to a remote network via the EIGRP and RIP protocols. Both protocols are using their default configurations. Which path to the remote network will be installed in the routing table?

the path learned via EIGRP
the path learned via RIP
the path with the highest metric value
both paths with load balancing

What is the function of the OSPF LSU packet?

used to confirm receipt of certain types of OSPF packets
used to establish and maintain adjacency with other OSPF routers
used to request more information about any entry in the BDR
used to announce new OSPF information and to reply to certain types of requests

When would the network administrator use the ip bandwidth-percent eigrp as-number percent command?

when there is a low bandwidth connection
when the connection is on a shared medium
when the connection is serial instead of Ethernet
when the link is always busy

Which multicast address does EIGRP use to send hello and updates packets?

224.0.0.5
224.0.0.6
224.0.0.9
224.0.0.10

Which protocol is used by EIGRP to deliver and receive update packets?

FTP
RTP
TCP
TFTP
UDP

Refer to the routing table shown in the exhibit. What is the meaning of the highlighted value 192?

It is the value assigned by the Dijkstra algorithm that designates the number of hops in the network.
It is the value used by the DUAL algorithm to determine the bandwidth for the link.
It is the metric, which is cost.
It is the administrative distance.

What is the purpose of the TTL field within an IP packet header?

clears an unreachable route from the routing table after the invalid timer expires
prevents regular update messages from inappropriately reinstating a route that may have gone bad
removes an unreachable route from the routing table after the flush timer expires
limits the period of time or number of hops a packet can traverse through the network before it should be discarded
used to mark the route as unreachable in a routing update that is sent to other routers

Two routers need to be configured within a single OSPF area. Which two components need to be configured on both routers to achieve this? (Choose two.)

the same process ID
the same area ID
network addresses and wildcard masks
the same router ID
the same loop back address

Which routing protocol maintains a topology table separate from the routing table?

IGRP
RIPv1
RIPv2
EIGRP

Which two locations can be the source of the Cisco IOS that is used by a router during the bootup process? (Choose two.)

flash memory
RAM
NVRAM
TFTP server
configuration register

Which two technologies can be used in distance vector routing protocols to prevent routing loops? (Choose two.)

authentication
link-state advertisements
hold-down timers
Spanning Tree Protocol
split horizon

Which feature of RIPv2 enables it to function as a classless routing protocol?

Subnet masks are included in routing updates.
Routing updates are triggered by topology changes.
Next-hop addresses are included in routing updates.
Multicast addresses are used to send routing updates.

The command ip route 192.168.2.0 255.255.255.0 172.16.2.2 was entered into the router. After network changes were made, the new next hop for the 192.168.2.0/24 network is 172.16.5.1. What should an administrator do so that the router will use the new next hop to reach the 192.168.2.0 network?

Enter the command clear ip route *.
Lower the administrative distance for the new path to ensure that it is used first.
Negate the original command and enter a new static route with the new next hop.
Nothing. The router will learn of the new next hop and automatically update the route table.

What is the key responsibility of the switching function within a router?

to choose the best path based on the lowest path cost
to encapsulate packets in the correct data link frame type
to look up the correct exit interface for the destination IP address
to look up the correct exit interface for the destination MAC address
to resolve the destination IP address into a destination MAC address

What is a characteristic of classful routing?

support for VLSM
the use of 48-bit addresses
routing updates do not include a subnet mask
addresses that are typically entered in hexadecimal format

Refer to the exhibit. Which command will allow Router2 to learn about the 192.168.16.0/28 network?

Router1(config)# ip classless
Router1(config-router)# network 192.168.16.0
Router1(config-router)# no passive-interface serial 0/1/1
Router2(config-router)# version 2
Router2(config-router)# neighbor 10.0.0.2

Refer to the exhibit. All routers are running RIP version 2. JAX is configured to just advertise the 10.0.0.0/24 network. CHI is configured to advertise the 172.16.0.0/16 network. A network administrator enters the commands shown in the exhibit. What changes will occur in this network?

The JAX router will ignore updates for the 172.16.0.0/16 network due to split horizon issues.
The CHI router will install a route to the 192.168.0.0/16 network in its routing table.
The routing table for CHI will have the 192.168.0.0/16 route but it will have an S next to the route.
The ORL router will apply a 255.255.0.0 subnet mask to all networks in the routing updates it forwards.

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

Router1 will install a route to 192.168.0.0/20
Router1 will install a route to 192.168.0.0/24
Router1 will install a route to 192.168.16.0/24
Router2 will install a route to 192.168.16.0/24
Router2 will not install a route to 192.168.16.0/20

Refer to the exhibit. Which command on which router will allow Router1 to learn about the 192.168.0.0/20 network?

Router1(config)# ip classless
Router1(config-router)# no passive-interface serial 0/1/1
Router2(config-router)# version 2
Router2(config-router)# neighbor 10.0.0.2

Refer to the exhibit. The exhibited network contains a mixture of Cisco and non-Cisco routers. The command debug ip rip was entered on the JAX router. All routers are running the same version of RIP. Router CHI and Router ORL are not able to reach the 192.168.1.16/28 network. What is a possible solution to this problem?

Enable split horizon in the network.
Configure RIPv2 on routers.
Add network 192.168.1.0 to the RIP configuration on the JAX router.
Configure JAX Fa0/0 as a passive interface.
Enable the Serial0/0/0 interface on the JAX router.
Change the IP address on the Fa0/0 interface of the JAX router to 192.168.1.1/24.

RIPv2 is the configured routing protocol on the routers in a network. The command Router(config-router)# no version 2 is entered on the routers. What effect does entering this command have on routing updates?

Subnet masks will be added to the routing updates.
Routing updates will be sent out using multicast address 224.0.0.9.
Version 1 and 2 updates will be received and the version 2 updates will not be sent.
The RIP routing process will be removed from the router and routing updates will not be forwarded.

Refer to the exhibit. All routers are running RIPv1. What changes will occur in the routing table of router B if a loopback interface with an address of 10.16.1.129/27 is configured on router B?

Routes to the 10.16.1.0/27, 10.16.1.64/27, and 10.16.1.128/27 networks are added.
A connected route to the 10.16.1.128/27 network is added.
A third route to the 10.0.0.0/8 network with RIPv1 as the source is added.
The 10.0.0.0/8 route is dropped immediately from the routing table after router B is configured.

What are two functions of the network command used when configuring routing protocols? (Choose two.)

identifies which networks will be included in the routing updates
identifies the hosts addresses that can be summarized in the network
used to list all addresses for remote and local networks
determines which subnet mask to apply to routing updates
determines which interfaces can send and receive routing updates

What is the maximum network diameter permitted by the default metric of RIPv2?

15 hops
16 hops
100 hops
120 hops
255 hops

Refer to the exhibit. A technician needs to add a new loopback interface to test routing functionality and network design. The technician enters the following set of commands on the router:

Refer to the exhibit. A technician needs to add a new loopback interface to test routing functionality and network design. The technician enters the following set of commands on the router:
Sanford(config)# interface loopback1
Sanford(config-if)# ip address 192.168.6.62 255.255.255.252 Why does the router respond with an error?


The router does not allow loopback interface configurations.
This mask can not be used with this class of addresses.
Classless routing must be configured before this address can be added.
The network address for Loopback1 overlaps with an already configured interface address.
The router is over the limit for the maximum paths that can be provided in the routing table.

Refer to the exhibit. RIPv1 is configured as the routing protocol for the network that is shown. The following commands are used on each router:

Refer to the exhibit. RIPv1 is configured as the routing protocol for the network that is shown. The following commands are used on each router:

router rip
network 10.0.0.0
network 172.16.0.0
When this configuration is complete, users on the LAN of each router are unable to access the remote LANs. Why?

The network statements are configured incorrectly.
A routing loop has been created.
RIPv1 is unable to route to discontiguous subnets of a major network.
RIPv1 is unable to route networks with a /24 subnet mask.