Which type of connection must be established before BGP peers can exchange update messages?()A、SSLB、UDPC、TCPD、SSH

题目

Which type of connection must be established before BGP peers can exchange update messages?()

  • A、SSL
  • B、UDP
  • C、TCP
  • D、SSH
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第1题:

Which type of connection must be established before BGP peers can exchange update messages?()

A.SSL

B.UDP

C.TCP

D.SSH


参考答案:C

第2题:

An administrator needs to update a router configuration for a router that does not support SSH.Which of the following can be used to securely update the router configuration?()

A.FTP

B.SNMPv2

C.TFTP

D.KTTPS


参考答案:D

第3题:

You receive an EBGP route configured with the no-export community set.To which types of peers can you send this route?() (Choose two.)

A. no BGP peers

B. all I-BGP peers

C. all E-BGP peers within your global AS

D. all E-BGP peers outside your global AS


参考答案:B, C

第4题:

For the accompanying router output, which of the following statements describes the stat e that neighbor 172.16.254.3 is in?()

A. The router will not accept connections from the peer.

B. BGP can exchange routing information in this state.

C. The router is listening on its server port for connection requests from the peer.

D. The router ha s sent out an active TCP connection request to the peer.


参考答案:C

第5题:

Which one of the following statements about BGP is FALSE?()

A. BGP uses TCP port 179.

B. BGP ensures reliability of updates by using the reliable transport services of TCP.

C. The network command with the mask option never insta lls a prefix into the BGP table unless there is a matching prefix exists in the IP route table.

D. A TCP connection is required before exchanging updates.

E. BGPuses notification and the update messages to establish and maintain the BGP neighbor relati onship.


参考答案:E

第6题:

By default, routes learned via IBGP will be announced to which peers?()

A. IBGP peers

B. EBGP peers

C. active BGP peers

D. established BGP peers


参考答案:B

第7题:

Which two statements are true about IBGP neighbor relationships?()

A. The BGP split - horizon rule specifies that routes learned via EBGP are never propagated to other IBGP peers.

B. The BGP split horizon rule specifies that routes learned via IBGP are never propagated to other IBGP peers.

C. A full - mesh IBGP requires that neighbor relationships be established between a ll BGP enabled routers in the autonomous system.

D. IBGP neighbors must be in different autonomous systems.

E. An EGP or static routing is required between IBGP neighbors.


参考答案:B, C

第8题:

Once the TCP connection is established, which message type initiates the BGP peering process?()

A. Open

B. Active

C. Update

D. Notification


参考答案:A

第9题:

Which attribute must exist in the BGP update packet?()

A. LOCAL_ PREF

B. AGGREG ATOR

C. AS_Path

D. Weight


参考答案:C

第10题:

In which state can BGP peers exchange Update messages?()

  • A、Active
  • B、OpenSent
  • C、OpenConfirm
  • D、Established
  • E、Idle

正确答案:D

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