单项选择题

Which BGP attribute is used by BGP to prevent routing loops?（）

A. AS - path
B. next - hop
C. MED
D. weight
E. local preference
F. origin

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单项选择题

The 192.168.0.0 network is not being propagated throughout the network. Observe the BGP configuration commands from the advertising router.
What is the reason the 192.168.0.0 route is not being advertised? （）

A. The network 192.168.0.0 statement is missing mask 255.255.0.0
B. The network 192.168.0.0 statement is missing mask 0.0.255.255.
C. The network 10.0.0.0 statement is missing mask 255 .0.0.0.
D. The network 10.0.0.0 statement is missing mask 0.255.255.255.
E. The auto - summary configuration is missing.

单项选择题

Above is the output from show ip bgp neighbors command. What is line 21 stating about the BGP connection？（）

A. the number of consecutive TCP connections to the specified remote neig hbor
B. the number of total TCP connections that the router has
C. the number of times the router has established a TCP connection
D. the number of neighbors that the router has

单项选择题

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.