A. A configured router prompts for a password

B. A configured router goes to the privileged mode prompt

C. An un configured router goes into the setup dialog

D. An un configured router goes to the enable mode prompt

A.IftheVPNserverisconfiguredforXauth，theVPNclientwaitsforausername/passwordchallenge.

B.TheCiscoEasyVPNfeatureonlysupportstransformsetsthatprovideauthenticationandencryption.

C.TheVPNclientinitiatesaggressivemode（AM）ifapre-sharedkeyisusedforauthenticationduringtheIKEphase1process.

D.TheVPNclientverifiesaserverusername/passwordchallengebyusingaAAAauthenticationserverthatsupportsTACACS+orRADIUS.

E.TheVPNservercanonlybeenabledonCiscoPIXFirewallsandCiscoVPN3000seriesconcentrators.

F.WhenconnectingwithaVPNclient，theVPNservermustbeconfiguredforISAKMPgroup1，2or5.

F operation. You notice that router A and router B are stuck in the two - way state. From the show ip ospf interface command output, what is the cause of this issue?（）

A. All OSPF implementations must have at le ast one interface in area 0.

B. You are attempting to run in the broadcast mode over an NBMA interface.

C. Both routers are configured to function as a BDR; therefore, there is no DR router.

D. Someone has changed the OSPF router ID; therefore you must clear the OSPF process.

E. The OSPF priority is set to 0 on both routers; therefore neither can become the DR.

A. Show vlan

B. Show mac-address-table

C. Show vtp status

D. show spanning-tree root

E. show ip interface brief

A.active

B.speak

C.learn

D.listen

E.init

F.standby

A.anedgeportthattransitionstotheforwardingstate

B.anon-edgeportthattransitionstotheblockingstate

C.anon-edgeportthattransitionstotheforwardingstate

D.anedgeportthattransitionstotheblockingstate

E.anyportthattransitionstotheblockingstate

F.anyportthattransitionstotheforwardingstate

A. It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point network

B. It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF router

C. It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access network

D. It is used to determine which interfaces will send Hello packets to neighboring OSPF routers

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

A. defines how the media is accessed

B. supplies a token to determine which host has access to the media

C. defines the encoding of electrical signals on the wire

D. determines the preamble bits

A. to prevent routing loops

B. to create a default route

C. to provide multiple gateways for hosts

D. to maintain a loop-free Layer 2 network topology

E. to enhance the functions of SNMP