1 Refer to the exhibit. Routers RTRA and RTRB are running OSPF. What entry does RTRA add in the routing table when Serial 0/0/0 receives an update about the network that is attached to RTRB?
O 172.16.7.0/30 [110/51] via 10.10.10.2, 00:00:25, Serial0/0/0
O 172.16.7.16/28 [110/51] via 10.10.10.2, 00:00:25, Serial0/0/0
O 172.16.7.0/24 [110/51] via 10.10.10.2, 00:00:25, Serial0/0/0
O 172.16.0.0/16 [110/51] via 10.10.10.2, 00:00:25, Serial0/0/0
2 Refer to the exhibit. Which combination of IP address and subnet mask can be used on the serial interface of Router2 in order to put the interface in the same network as the serial interface of Router1?
IP 172.16.0.18, subnet mask 255.255.255.0
IP 172.16.32.15, subnet mask 255.255.255.240
IP 172.16.0.18, subnet mask 255.255.255.252
IP 172.16.32.18, subnet mask 255.255.255.252
3 Refer to the exhibit. R1 knows two routes, Path A and Path B, to the Ethernet network attached to R3.Edit
R1 learned Path A to network 10.2.0.0/16 from a static route and Path B to network 10.2.0.0/16 from EIGRP. Which route will R1 install in its routing table?
Both routes are installed and load balancing occurs across both paths.
The route via Path B is installed because the EIGRP route has the best metric to network
The route via Path A is installed because the static route has the best metric to network
The route via Path B is installed because the EIGRP route has the lowest administrative distance
to network 10.2.0.0/16.
The route via Path A is installed because the static route has the lowest administrative distance to
4 What are two tasks that must be completed before two routers can use OSPF to form a neighbor adjacency? (Choose two.Edit
- Add a clock rate to S0/0/0 on R1.
- Add an interface description to S0/0/1 on R2.
- Change the serial interface on R2 to S0/0/0 so that it matches R1.
- Change the IP address of S0/0/1 on R2 so that it is in the same subnet as R1.
Add a clock rate to S0/0/0 on R1.
Add an interface description to S0/0/1 on R2.
Change the serial interface on R2 to S0/0/0 so that it matches R1.
Change the IP address of S0/0/1 on R2 so that it is in the same subnet as R1.
12 Refer to the exhibit. Routers R1 and R3 use different routing protocols with default administrative distance values. All devices are properly configured and the destination network is advertised by both protocols. Which path will be used to transmit the data packets from PC1 to PC2?Edit
R1 will forward the route information for subnet 192.168.100.0/30.
R1 will not forward route information for subnet 192.168.100.4/30.
R1 will forward the route information with an administrative distance set to 50.
R1 will forward the summarized route information for network 192.168.100.0/24.
R1 will forward route information for subnet 10.10.10.0/30 out the serial interface.
20 A network administrator has enabled RIP on routers B and C in the network diagram. Which of the following commands will prevent RIP updates from being sent to Router A?
A(config)# router rip
A(config-router)# passive-interface S0/0
B(config)# router rip
B(config-router)# network 192.168.25.48
B(config-router)# network 192.168.25.64
A(config)# router rip
A(config-router)# no network 192.168.25.32
B(config)# router rip
B(config-router)# passive-interface S0/0
A(config)# no router rip
21 What is the function of the OSPF LSR packet?Edit
It is used to confirm the receipt of LSUs.
It is used to establish and maintain adjacency with other OSPF routers.'
It is used by the receiving routers to request more information about any entry in the DBD.
It is used to check the database synchronization between routers.
22 Refer to the exhibit. All interfaces are configured with the correct IP addresses and subnet masks. OSPF has been configured as the routing protocol. During troubleshooting, it is determined that hosts on network B can ping the Lo0 interface on R1 but are unable to reach hosts on network A. What i the cause of the problem?Edit
Routers R1 and R2 have incorrect router IDs configured.
Router R1 is unable to form a neighbor relationship with router R2.
Routers R1 and R2 have been configured in different OSPF areas.
The configuration of router R1 fails to include network A in the OSPF routing process.
23 Refer to the exhibit. A network engineer has run the show version command on R3. Upon rebooting, R3 does not load the start-up configuration settings.
What could be the cause of this problem?
There is insufficient NVRAM.
There is insufficient flash memory.
The configuration register is not configured with the default setting.
The system image file is not located in NVRAM.
24 Refer to the exhibit. All routers are running RIPv1. The two networks 10.1.1.0/29 and 10.1.1.16/29 are unable to access each other. What can be the cause of this problem?
Because RIPv1 is a classless protocol, it does not support this access.
RIPv1 does not support discontiguous networks.
RIPv1 does not support load balancing.
RIPv1 does not support automatic summarization.
25 Refer to the exhibit. Which solution provides the most efficient use of router resources for forwarding traffic between BR and HQ?
26 Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for
The two routers are connected on a multiaccess network.
The hello and dead intervals are different on the two routers.
They have different OSPF router IDs.
They have different process IDs.
27 Refer to the exhibit. The routers in the exhibit are running the EIGRP routing protocol. What statement is true regarding how packets will travel from the 172.16.1.0/16 network to the 192.168.200.0/24 network?Edit
The router chooses the first path that it learned and installs only that route in the routing table.
The router chooses the path with the lowest administrative distance and installs only that route in the routing table.
The router chooses the highest routing ID based on the advertised network IP addresses and installs only that route in the routing table.
The router installs all the equal cost paths in the routing table but sends packets out only one, holding the others in reserve in case the primary route goes down.
The router installs all the equal cost paths in the routing table and performs equal cost load balancing to send packets out multiple exit interfaces.
28 Refer to exhibit. Given the topology shown in the exhibit, what three commands are needed to configure EIGRP on the Paris router? (Choose three.)
Paris(config)# router eigrp 100
Paris(config)# router eigrp
Paris(config-router)# network 192.168.6.0
Paris(config-router)# network 192.168.7.0
Paris(config-router)# network 192.168.8.0
Paris(config-router)# network 192.168.9.0
29 Refer to the exhibit. Hosts on the BOS Fa0/0 LAN are able to ping the Fa0/1 interface on the JAX router and all interfaces on the BOS and ORL routers. Why would hosts from the 10.0.0.0/24 network not be able to ping hosts on the Fa0/0 LAN of the JAX router?
The JAX router has the wrong process ID.
The JAX router needs the network 10.0.0.0 0.0.0.255 area 0 command.
The JAX router needs the network 192.168.3.0 0.0.0.255 area 0 command.
The BOS router needs the network 192.168.3.0 0.0.0.255 area 0 command.
30 How does route poisoning prevent routing loops?Edit
CIDR is required to route supernets.
There is no default gateway configured.
The 172.30.0.0/16 subnets are discontiguous.
RIPv2 cannot route networks with variable subnets.
35 Refer to the exhibit. A ping between host A and host B is successful, but pings from host A to operational hosts on the Internet fail. What is the reason for this problem?Edit
The FastEthernet interface of R1 is disabled.
One of the default routes is configured incorrectly.
A routing protocol is not configured on both routers.
The default gateway has not been configured on host A.
36 Because of a topology change, the next hop IP address in the current static route must be reconfigured. How can a static route entry be altered to accommodate a topology change?
Keep the existing static route and configure a new static route with the correct next hop IP
Negate the existing static route and configure a new static route with the correct next hop IP address.
Do nothing. The existing static route will automatically update the next hop entry with the new IP address.
Keep the existing static route, reload the router, and configure a new static route with the correct next hop IP address.
37 Refer to the exhibit. A network administrator is accessing router R1 from the console port. Once the administrator is connected to the router, which password should the administrator enter at the R1> prompt to access the privileged EXEC mode?
38 A router has EIGRP configured as the only routing protocol. In what way might EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?Edit
41 Refer to the exhibit. All router interfaces are configured with an IP address and are operational. If no routing protocols or static routes are configured, what information will be included in the show ip route command output for router A?
All of the 192.168.x.0 networks will be in the routing table.
Routes to networks 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24 will be in the routing table.
The routing table will be empty because routes and dynamic routes have not been configured.
A default route is automatically installed in the routing table to allow connectivity between the networks.
42 Refer to the exhibit. How many routes are child routes?
43 Refer to the exhibit. What happens to a packet that has 172.16.0.0/16 as the best match in the routing table that is shown?Edit
The packet is discarded.
The packet is flooded out all interfaces.
The packet is forwarded via Serial0/0/0.
The packet is forwarded via FastEthernet0/0.
44 Using default settings, what is the next step in the router boot sequence after the IOS loads from flash?Edit
Perform the POST routine.
Search for a backup IOS in ROM.
Load the bootstrap program from ROM.
Load the running-config file from RAM.
Locate and load the startup-config file from NVRAM.
45 What command would the network administrator apply to a router that is running OSPF to advertise the entire range of addresses included in 172.16.0.0/19 in area 0?
46 Refer to the exhibit. The network administrator is planning IP addressing of a new network. What part of this addressing scheme must be changed to allow communication between host A and the server?Edit
the IP address of the server
the default gateway of host A
the IP address of host A
the default gateway of the server
47 Refer to the exhibit. What information can be determined from the highlighted output?