An engineer is trying to summarize the following networks using the “ip summary-address eigrp”
command:
10.8.88.0/25
10.8.89.48/29
10.8.64.96/27

Which network and subnet mask below would be the smallest EIGRP summary address to include
all three subnets?

DRAG DROP
Click and drag the command on the left to the associated task on the right.

EIGRP performs automatic summarization at network boundaries. What administrative distance is
given to these EIGRP summary routes?

CORRECT TEXT
(OSPF Sim)

OSPF is configured on routers Amani and Lynaic. Amani’s S0/0 interface and Lynaic’s S0/1
interface are in Area 0. Lynaic’s Loopback0 interface is in Area 2.

Your task is to configure the following:
Portland’s S0/0 interface in Area 1
Amani’s S0/1 interface in Area 1
Use the appropriate mask such that ONLY Portland’s S0/0 and Amnani’s S0/1 could be in Area 1.
Area 1 should not receive any external or inter-area routes (except the default route).

CORRECT TEXT
Acme is a small export company that has an existing enterprise network that is running IPv6
OSPFv3. Currently OSPF is configured on all routers. However, R4’s loopback address
(FEC0:4:4) cannot be seen in R1’s IPv6 routing table. You are tasked with identifying the cause of
this fault and implementing the needed corrective actions that uses OSPF features and does no
change the current area assignments. You will know that you have corrected the fault when R4’s
loopback address (FEC0:4:4) can ping from R1 to R4 loopback address.

CORRECT TEXT
You have been tasked with completing the implementation and ensuring that the network requirements are ment.

The company and the company network have both been growing rapidly. Multiple adds, moves
and changes have been applied to the network. Your boss has asked you to troubleshoot a recent
OSPF synchronization problem that has arisen. There have been synchronization problems at
separate locations in the OSPF area 0. There have been reported link failures during the rapid
growth of the company network. You are required to resolve the OSPF problem. OSPF must be
able to converge when the network changes.
Refer to the information above to answer the following question
Examine the following excerpt from the “show ip ospf” command on D1:
Area BACKBONE (0)
Number of interfaces in the this area is 1
Area has no authentication
SPF algorithm last executed 00:00:31.280 ago
SPF algorithm executed 5 times
Area ranges are
Number of LSA 13. Checksum Sum 0x16F0FD
Number of opaque link LSA 0. Checksum Sum 0×000000
Number of DCbitless LSA 0

Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
Area 16
Number of interfaces in this area is 2
Area has message digest authentication
SPF algorithm last executed 00:00:34.928 ago
SPF algorithm executed 7 times
Area ranges are
Number of LSA 5. Checksum Sum 0x02FCD3
Number of opaque link LSA 0. Checksum Sum 0×000000
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0

Based on the information shown above, what is most likely causing the different missing routes throughout the network?

The company and the company network have both been growing rapidly. Multiple adds, moves
and changes have been applied to the network. Your boss has asked you to troubleshoot a recent
OSPF synchronization problem that has arisen. There have been synchronization problems at
separate locations in the OSPF area 0. There have been reported link failures during the rapid
growth of the company network. You are required to resolve the OSPF problem. OSPF must be
able to converge when the network changes.
Refer to the information above to answer the following question.
Which configuration command on D1 (with a similar command on D2) will provide an immediate
solution to the missing route problem?

The company and the company network have both been growing rapidly. Multiple adds, moves
and changes have been applied to the network. Your boss has asked you to troubleshoot a recent
OSPF synchronization problem that has arisen. There have been synchronization problems at
separate locations in the OSPF area 0. There have been reported link failures during the rapid
growth of the company network. You are required to resolve the OSPF problem. OSPF must be
able to converge when the network changes.
Refer to the information above to answer the following question.
The log of d1 reports the following:

This event was anticipated due to maintenance; however, it resulted in excessive lost routes.
Which route should be the only one removed from the routing tables of the routers?

The company and the company network have both been growing rapidly. Multiple adds, moves
and changes have been applied to the network. Your boss has asked you to troubleshoot a recent
OSPF synchronization problem that has arisen. There have been synchronization problems at
separate locations in the OSPF area 0. There have been reported link failures during the rapid
growth of the company network. You are required to resolve the OSPF problem. OSPF must be
able to converge when the network changes.

Refer to the information above to answer the following question.
The R2 router has lost connectivity to R1. The following is R1s current route table:

Which expected route is missing from R1s route table based on the topology during the
maintenance period?