Scenario
Refer to the topology. Your company has decided to connect the main office with three other
remote branch offices using point-to-point serial links.
You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main
office and the routers located in the remote branch offices.

An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3
office. What is causing the problem?

Scenario
Refer to the topology. Your company has connected the routers R1. R2. and R3 with serial links. R2
and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected
to the routers R4 and R5.
The EIGRP routing protocol is configured.
You are required to troubleshoot and resolve the EIGRP issues between the various routers.
Use the appropriate show commands to troubleshoot the issues.

The loopback interfaces on R4 with the IP addresses of 10.4.4.4 /32, 10.4.4.5/32. and 10.4.4.6/32 are
not appearing in the routing table of R5 Why are the interfaces missing?

Scenario
Refer to the topology. Your company has connected the routers R1. R2. and R3 with serial links. R2
and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected
to the routers R4 and R5.
The EIGRP routing protocol is configured.
You are required to troubleshoot and resolve the EIGRP issues between the various routers.
Use the appropriate show commands to troubleshoot the issues.

Which path does traffic take from R1 to R5?

Scenario
Refer to the topology. Your company has connected the routers R1. R2. and R3 with serial links. R2
and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected
to the routers R4 and R5.
The EIGRP routing protocol is configured.
You are required to troubleshoot and resolve the EIGRP issues between the various routers.
Use the appropriate show commands to troubleshoot the issues.

Router R6 does not form an EIGRP neighbor relationship correctly with router R1. What is the cause
for this misconfiguration?

Scenario
Refer to the topology. Your company has connected the routers R1. R2. and R3 with serial links. R2
and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected
to the routers R4 and R5.
The EIGRP routing protocol is configured.
You are required to troubleshoot and resolve the EIGRP issues between the various routers.
Use the appropriate show commands to troubleshoot the issues.

Why are the pings failing?

The output of the show frame-relay pvc command shows “PVC STATUS = INACTIVE”. What does this
mean?

DRAG DROP
Drag the Frame Relay acronym on the left to match its definition on the right.

Refer to the exhibit.

In the Frame Relay network, which IP addresses would be assigned to the interfaces with point-topoint PVCs?

Which command is used to enable CHAP authentication, with PAP as the fallback method, on a serial
interface?

Which protocol is an open standard protocol framework that is commonly used in VPNs, to provide
secure end-to-end communications?