The Candid Test On CCIE-r&s-bgp Quiz

30 Questions | Total Attempts: 255

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The Candid Test On CCIE-r&s-bgp Quiz

CCIE routing and switching is a certification that every expert engineer needs to undertake in order to plan, operate and troubleshoot converged network infrastructure. Take up the candid test on CCIE- r&s- bgp quiz below and get ready for the upcoming test next week. All the best and keep revising!


Questions and Answers
  • 1. 
    By default, what BGP uses to choose the best route?
    • A. 

      Lowest Weight

    • B. 

      Lowest Local Preference

    • C. 

      Shortest AS Path

    • D. 

      Highest Origin

    • E. 

      Highest Multi-Exit Discriminator

    • F. 

      Lowest Metric

  • 2. 
    • A. 

      NEXT_HOP is reachable (the router has a route in its routing table.

    • B. 

      The route is synchronized by IGP

    • C. 

      The NLRI is an ATOMIC AGGREGATOR

    • D. 

      The router has an interface connected to the ORIGIN Path Attribute

    • E. 

      The AS_PATH contains the NEXT_HOP

  • 3. 
    An NLRI is simply an IP prefix and a prefix length?
    • A. 

      True

    • B. 

      False

  • 4. 
    How  BGP communicates with its neighbors?
    • A. 

      Using multicast address 224.0.0.2 (all routers)

    • B. 

      Using unicast neighbor address to TCP port 179

    • C. 

      Using unicast neighbor address to UDP port 520

    • D. 

      Using reliable layer 3 protocol (IP/112)

    • E. 

      Using multicast address 224.0.0.2 to UDP port 1985

    • F. 

      Using multicast address 224.0.0.2 to UDP port 3222

  • 5. 
    By default, after how many times a neighbor is considered to have failed (ie.: What is the keepalive timer default value)?
    • A. 

      5 seconds

    • B. 

      15 seconds

    • C. 

      30 seconds

    • D. 

      60 seconds

    • E. 

      120 seconds

    • F. 

      180 seconds

    • G. 

      240 seconds

    • H. 

      300 seconds

  • 6. 
    By default, keepalive are sent at which interval?
    • A. 

      5 seconds

    • B. 

      15 seconds

    • C. 

      30 seconds

    • D. 

      60 seconds

    • E. 

      120 seconds

    • F. 

      180 seconds

    • G. 

      240 seconds

    • H. 

      300 seconds

  • 7. 
    What makes a neighbor internal BGP (iBGP)?
    • A. 

      When the neighbor is in the same confederation

    • B. 

      R1(config)# router bgp 3 internal

    • C. 

      The command: neighbor 1.1.1.1 peer-internal

    • D. 

      When the neighbor is in the same AS

  • 8. 
    What the command "neighbor update-source" do?
    • A. 

      Modify the NEXT_HOP attribute advertised to a neighbor

    • B. 

      Strip Private AS from the AS_PATH attribute advertised to a neighbor

    • C. 

      Determine the NLRI used to reach a neighbor

    • D. 

      Determine the source IP address used to reach a neighbor

  • 9. 
    How is the destination IP address used to discover and reach a neighbor determined?
    • A. 

      By the NEXT_HOP attribute advertised by a neighbor

    • B. 

      Manually configured using the neighbor command

    • C. 

      Send in the HELLO messages by neighbor

    • D. 

      Define within the peer-group of the confederation

  • 10. 
    With Cisco IOS 12.3 and later, BGP perform Auto-Summary by default?
    • A. 

      True

    • B. 

      False

  • 11. 
    What authentication method is supported by BGP?
    • A. 

      Plain Text

    • B. 

      MD5

    • C. 

      None. BGP does not support authentication

    • D. 

      RADIUS

    • E. 

      EAP

  • 12. 
    • A. 

      Configure two static route to the other loopback address (on for 10.1.34.0/24 and 10.1.134.0/24). Configure neighbor 3.3.3.3 update-source looback0 and neighbor 3.3.3.3 ebgp-multihop 2(on R4).

    • B. 

      EBGP neighbor command should use aggregator option

    • C. 

      Nothing, eBGP will load balance automatically

    • D. 

      EBGP neighbor command should use peer-group option

  • 13. 
    What config should be used if R3 and R4 are using their loopback as source IP?
    • A. 

      EBGP neighbor command should use update-source with loopback IP address

    • B. 

      EBGP neighbor command should use ebgp-peer option

    • C. 

      Nothing, eBGP will advertise connected loopback automatically

    • D. 

      EBGP neighbor command should use ebgp-multihop option

  • 14. 
    Select all the properties that define a neighbor in the state "Active"
    • A. 

      Listen on port TCP 179

    • B. 

      The router initiate TCP connection with that neighbor

    • C. 

      The router formed TCP connection with that neighbor

    • D. 

      The router sent OPEN message to that neighbor

    • E. 

      The router received OPEN message from that neighbor

    • F. 

      The router has Established a BGP connection with that neighbor

    • G. 

      None of the above

  • 15. 
    • A. 

      Listen on port TCP 179

    • B. 

      The router initiate TCP connection with that neighbor

    • C. 

      The router formed TCP connection with that neighbor

    • D. 

      The router sent OPEN message to that neighbor

    • E. 

      The router received OPEN message from that neighbor

    • F. 

      The router has Established a BGP connection with that neighbor

    • G. 

      None of the above

  • 16. 
    • A. 

      Listen on port TCP 179

    • B. 

      The router initiate TCP connection with that neighbor

    • C. 

      The router formed TCP connection with that neighbor

    • D. 

      The router sent OPEN message to that neighbor

    • E. 

      The router received OPEN message from that neighbor

    • F. 

      The router has Established a BGP connection with that neighbor

    • G. 

      None of the above

  • 17. 
    What happen when the keepalive timer within the OPEN message of each BGP neighbor mismatch?
    • A. 

      They stay in "Open Sent" state

    • B. 

      They use the lower keepalive timer value

    • C. 

      They use the higher keepalive timer value

    • D. 

      They stay in "Connect" state

  • 18. 
    What BGP message type are used to establish a neighbor relationship and exchange basic parameters?
    • A. 

      Hello

    • B. 

      Advertisement

    • C. 

      Update

    • D. 

      Notification

    • E. 

      Reset

    • F. 

      Open

    • G. 

      KeepAlive

  • 19. 
    What BGP message type are used to maintain a neighbor relationship?
    • A. 

      Hello

    • B. 

      Advertisement

    • C. 

      Update

    • D. 

      Notification

    • E. 

      Reset

    • F. 

      Open

    • G. 

      KeepAlive

  • 20. 
    What BGP message type are used to exchange NLRI?
    • A. 

      Hello

    • B. 

      Advertisement

    • C. 

      Update

    • D. 

      Notification

    • E. 

      Reset

    • F. 

      Open

    • G. 

      KeepAlive

  • 21. 
    What BGP message type are used when BGP errors occur; causing a reset to the neighbor relationship when sent?
    • A. 

      Hello

    • B. 

      Advertisement

    • C. 

      Update

    • D. 

      Notification

    • E. 

      Reset

    • F. 

      Open

    • G. 

      KeepAlive

  • 22. 
    What command(s) allow to reset BGP neighbor connections?
    • A. 

      R1 (router-config)# reset neighbor 172.16.8.8

    • B. 

      R1# reset bgp all

    • C. 

      R1# clear ip bgp *

    • D. 

      R1 (router-config)# neighbor 172.16.8.8 shutdown

    • E. 

      R1 (router-config)# clear connections

    • F. 

      R1 (router-config)# reset connections

    • G. 

      R1 (router-config)# clear neighbor *

    • H. 

      R1 (router-config)# reset neighbor *

  • 23. 
    Which command enables logging of BGP neighbor status changes (up or down) and resets for troubleshooting network connectivity problems and measuring network stability?
    • A. 

      Debug bgp neighbor

    • B. 

      Neighbor 10.1.1.1 log

    • C. 

      Bgp log-neighbor-changes

    • D. 

      Ip bgp logging

  • 24. 
    What is the BGP Routing Information Base (RIB)?
    • A. 

      BGP routing policies for all the Network Layer Reachability Information (NLRI) learn by BGP

    • B. 

      BGP topology table, that holds the Network Layer Reachability Information (NLRI) learn by BGP

    • C. 

      BGP neighbors table

    • D. 

      BGP forwarding logic base on Path Attributes learned

  • 25. 
    Which command allows a Soft Reconfiguration of BGP? That is, allows a BGP peer to reapply its routing policies without closing its neighbor connections?
    • A. 

      R1 (router-config)# neighbor 172.16.8.8 soft-reset

    • B. 

      R1# reset bgp soft

    • C. 

      R1# clear ip bgp * soft

    • D. 

      R1 (router-config)# neighbor 172.16.8.8 shutdown soft

    • E. 

      R1 (router-config)# clear connections

    • F. 

      R1 (router-config)# reset connections

    • G. 

      R1 (router-config)# clear neighbor * soft

    • H. 

      R1 (router-config)# reset neighbor *

  • 26. 
    Assuming that the no auto-summary command has been configured. What the BGP network 10.1.1.0 mask 255.255.255.0 command instruct to the BGP process to do?
    • A. 

      Activate BGP process on the corresponding interface (on subnet 10.1.1.0/24)

    • B. 

      If 10.1.1.0/24 exactly match an entry in the current IP routing table, then put the equivalent NLRI in the local BGP topology table.

    • C. 

      BGP will start advertising udpate message to its neighbors for any networks 10.0.0.0 in the current local IP routing table.

    • D. 

      Send Open messages on network 10.1.1.0/24 to establish a connection with a neighbor

  • 27. 
    • A. 

      Activate BGP process on the corresponding interface (on subnet 10.1.1.0/24)

    • B. 

      If 10.1.1.0/24 exactly match an entry in the current IP routing table, then put the equivalent NLRI in the local BGP topology table.

    • C. 

      BGP will start advertising udpate message to its neighbors for network 10.0.0.0/8 if an entry is found in the current local IP routing table.

    • D. 

      Send Open messages on network 10.1.1.0/24 to establish a connection with a neighbor

    • E. 

      If 10.0.0.0 match an entry in the current IP routing table, then put the equivalent NLRI in the local BGP topology table.

  • 28. 
    • A. 

      Activate BGP process on the corresponding interface (on subnet 10.1.1.0/24)

    • B. 

      If 10.1.1.0/24 exactly match an entry in the current IP routing table, then put the equivalent NLRI in the local BGP topology table.

    • C. 

      BGP will start advertising udpate message to its neighbors for any networks 10.0.0.0 in the current local IP routing table.

    • D. 

      Send Open messages on network 10.1.1.0/24 to establish a connection with a neighbor

  • 29. 
    Which statement best describe the following configuration: RTC# router bgp 256 neighbor 1.1.1.1 remote-as 100 neighbor 128.213.11.2 remote-as 256 bgp default local-preference 150
    • A. 

      RTC sets the local preference to 150 of all updates going out to neighbor 128.213.11.2

    • B. 

      RTC sets the local preference to 150 of all updates going out to neighbor 1.1.1.1

    • C. 

      RTC sets the local preference to 150 of all updates advertized by neighbor 128.213.11.2

    • D. 

      RTC sets the local preference to 150 of all updates advertized by neighbor 1.1.1.1