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?

Refer to the exhibit.

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

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

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?

At which layer of the OSI model does PPP perform?

The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of
the following statements is true concerning this command?

Which two options are valid WAN connectivity methods? (Choose two.)