Which type of router cannot exist within a stub area？（）

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• Routers perform which of the following functions?（）

  A . Packet switching B . Collision prevention on a LAN segment. C . Packet filtering D . Broadcast domain enlargement E . Broadcast forwarding F . Internetwork communicatio

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• Which of these best identifies the types of prefixes a router running BGP will advertise to an EBGP peer？ （）

  A .  prefixes received from any other BGP peer and prefixes locally originated via networkstatements or redistributed to BGP B .  all prefixes in its IP routing table C .  only prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed D .  only prefixes received from EBGP peers and prefixes received from route reflectors E .  all prefixes in its routing table except the prefixes received from other EBGP peers F .  all prefixes in its routing table except the prefixes received from other IBGP peer

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• Into which two types of areas would an area border router (ABR) inject a default route?（）

  A . stub B . the autonomous system of an exte rior gateway protocol (EGP) C . NSSA D . totally stubby E . the autonomous system of a different interior gateway protocol (IGP) F . area 0

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• Under which circumstance, ie network type, would an OSPF router establish a neighbor adjacency, even though the DR/BDR election process was not performed?（）

  A . Point-to-point B . Broadcast multicast C . Nonbroadcast multicast D . Backbone area 0 E . Virtual Link

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• For the following LMI types， which three can be configured for use with Frame Relay on a Cisco router？（）

  A . Cisco B . ANSI-Annex D C . Q.931-Annex B D . Q.933-Annex A

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• Which command can be used to determine the type of cable attached to the Serial 0/0 interface on a router?（）

  A . show interfaces serial 0/0 B . show running-config C . show version D . show controllers serial 0/0 E . show ip interface F . show line serial 0/0

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• Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is notconfigured as a route reflector？（）

  A . prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributed B . all prefixes in its routing table C . prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed D . prefixes received from EBGP peers and prefixes received from route reflectors E . prefixes received from other IBGP peers， prefixes received from EBGP peers，and prefixes redistributedto BGP F . prefixes received from other IBGP peers and prefixes received from route reflector

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• Which of the following LSA types describes topology information that, when changed, requires a router in the same area to perform an SPF calculation?（）https://assets.asklib.com/images/image2/2018073114185475818.png

  A . 1 B . 2 C . 3 D . 4 E . 5 F . 7

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• On which types of network will OSPF elect a backup designated router（）。

  A . point-to-point and multiaccess B . point-to-multipoint and multiaccess C . point-to-point and point-to-multipoint D . nonbroadcast and broadcast multipoint E . nonbroadcast and broadcast multiacce

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• Under which network type circumstance would an OSPF router establish router adjacencies while not performing the DR/BDR election process?（）

  A . Point-to-point B . Broadcast C . Non-broadcast multi-access D . Backbone area 0 E . None of the above

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• Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is not configured as a route reflector？ （）

  A .  prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributed B .  all prefixes in its routing table C .  prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed D .  prefixes received from EBGP peers and prefixes received from route reflectors E .  prefixes received from other IBGP peers， prefixes received from EBGP peers， and prefixes redistributed to BGP F .  prefixes received from other IBGP peers and prefixes received from route reflector

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• Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is not configured as a route reflector？（）

  A . prefixes received from any other BGP peer and prefixes locally originated via networkstatements or redistributed B . all prefixes in its routing table C . prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed D . prefixes received from EBGP peers and prefixes received from route reflectors E . prefixes received from other IBGP peers， prefixes received from EBGP peers，and prefixes redistributed to BGP F . prefixes received from other IBGP peers and prefixes received from route reflector

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• On which types of network will OSPF elect a backup designated router?（）

  A . point-to-point and multiaccess B . point-to-multipoint and multiaccess C . point-to-point and point-to-multipoint D . nonbroadcast and broadcast multipoint E . nonbroadcast and broadcast multiacce

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• If two routers， both reachable from one another， originate functionally equivalent type 2 external- LSAs （i.e，same destination， cost and non-zero forwarding address ）， Which of the following statements wouldapply ？（）

  A . Two LSAs will exist in the network for this destination， and both will be used B . Two LSAs will exist in the network for this destination， but only the one generated by the highest RID ASBR will be used C . Only the LSA generated by the highest RID ASBR will exist in the network D . Only the LSA generated by the lowest RID ASBR will exist in the network

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• How would you characterize the source and type in a denial of service attack on a router？（）

  A . By perfornubg a show ip interface to see the type and source of the attack based upon the access-listmatches B . By performing a show interface to see the transmitted load "txload" and receive load "rxload" ；if the interface utilization is not maxed out ，there is no attack underway C . By setting up an access-list to permit all ICMP，TCP，and UDP traffic with the log or log-input commands，then use the show access-list and show log commands to determine the type and sourceof attack D . By applying an access-list to all incoming and outgoing interfaces，turning off route-cache on all interfaces，then，when telnetting into the router perform a debug IP packet detail

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• For the following LMI types，which three can be configured for use with Frame Relay on a Cisco router？（）

  A . Cisco B . ANSI - Annex D C . Q.931 - Annex B D . Q.933 - Annex A

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• Which router is doing LSA type 7 to type 5 translation，and why？（）

  A . Both RTA and RTB will do LSA7/5 translation，since they are both NSSA ABRs B . RTA will do LSA7/5 translation，since it has the lower router ID C . RTB will do LSA7/5 translation，since it has the higher router ID D . The redistributing router will do LSA7/5 translation，since it is within the NSSA

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• Which of the following describe router functions?（）

  A . Packet switching B . Collision prevention on a LAN segment C . Packet filtering D . Broadcast domain enlargement E . Broadcast forwarding F . Internetwork communicatio

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• Which of these best identifies the types of prefixes a router running BGP will advertise to an EBGP peer？（）

  A . prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributed to BGP B . all prefixes in its IP routing table C . only prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed D . only prefixes received from EBGP peers and prefixes received from route reflectors E . all prefixes in its routing table except the prefixes received from other EBGP peers F . all prefixes in its routing table except the prefixes received from other IBGP peer

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• Area Border Router （ABR） is a router located on the border of one or more OSPF areas that connect those areas to the backbone network. An ABR will inject a default route into which two types of areas？（）

  A . Area 0 B . NSSA C . Totally stubby D . Stu

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• The following was issues on router TestKingA: TestKingA #show ip ospf neighbor Neigbor ID PRI State Dead Time Address Interface 192.168.1.2 1 Full/- 00:00:37 192.168.1.2 Serial1 Which type of OSPF network will provide the output shown in the graphic?（）

  A . FDDI B . nonbroadcast multiaccess C . broadcast multi-access D . point-to-point

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• The following was issues on router TestKingA:TestKingA show ip ospf neighborNeigbor ID PRI State Dead Time Address Interface192.168.1.2 1 Full/- 00:00:37 192.168.1.2 Serial1Which type of OSPF network will provide the output shown in the graphic？（）

  A. FDDI B. nonbroadcast multiaccess C. broadcast multi-access D. point-to-point

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• The ERX Edge Router responds toa received PPP over Ethernet Active Discovery Initiation（PADI) with which message type？（）

  A.PPPoE Active Discovery Offer B.PPPoE Active Discovery Initiation C.PPPoE Active Session Confirmation D.PPPoE Active Session Acknowledgment

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