A.A

B.B

C.C

D.D

A.A

B.B

C.C

D.D

A.LSR

B. LSAck

C. LSU

D. DD

E. Hello

A.Init

B. 2Way

C. ExStart

D. Exchange

A. incorrect distribute lists have been configured

B. missing ip classless command

C. CEF not enabled

D. no default metric configured for EIGRP

A. Takes the metric of the outgoing interface.

B. Uses the metric that is assigned during configuration.

C. Uses the path metric to reach the virtual link neighbor.

D. Uses a default of zero unless otherwise specified.

A. Sends Rapid Hellos to the restarting router.

B. Maintains Adjancency with restarting router.

C. Sends periodic DD packets to the restarting router.

D. Floods Type 9 LSAs to all routers indicating a restarting event.

is verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds.What could be the cause of this problem？（）

A. OSPF authentication errors between some of the routers

B. Two routers have the same OSPF router ID

C. Issues with mistuned OSPF timers

D. OSPF LSA pacing issues between some of the routers

E. OSPF neighbor adjacency problems between some of the routers

1.1.0/24 and 10.2.2.0/24,are not being redistributed into the OSPF routing domain. Which two items could be a solution to this proble m？（）

A. Change the EIGRP AS number from 100 to1 in the redistribute command.

B. Add the subnets option to the redistribute command.

C. Change the metric - type to2 in the redistribute command.

D. Configure the redistribute command under router eigrp 1 i nstead.

E. Change the metric to an EIGRP compatible metric value (bandwidth, delay, reliability, load, MTUs) in the redistribute command.

ted the BDR, as seen in the graphic. Assume that RTA fails, and that RTB takes the place ofthe DR whi le RTC becomes the new BDR. What will happen when RTA comes back online？（）

A. A new election will take place establishing an all new DR and BDR based on configured priority levels and MAC addresses.

B. RTA will take the place of DR immediately upon esta blishing its adjacencies.

C. RTA will take the place of DR only if RTB fails.

D. RTA will take the place of DR only if both RTB and RTC fail.