单项选择题

What is the type and scope of the LSA required to support traffic engineering in an OSPFenvironment?（）

A. Type 9, AS scope
B. Type 10, AS scope
C. Type 10, Area scope
D. Type 9, Area scope

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单项选择题

Within a BGP confederation how are routing loops avoided?（）

A. split horizon
B. the AS-path attribute
C. the BGP cluster ID attribute
D. the BGP originator ID attribute

单项选择题

Which action does a BGP speaker take when it detects that the reset state bit is set in an openmessage?（）

A. It tears down the BGP session.
B. It sends a restart message to the peer.
C. It marks all routes from that peer as stale.
D. It sends a BGP refresh message to the peer

单项选择题

If the policies shown below evaluate as described, which action will occur for the listed policy expression?（）
Policy A=True
Policy B=True
Policy C=True
Policy D=False
Policy Expression: !(A&&B)||C

A. The policy evaluates to True (a&&n).
B. The policy evaluates to True because of c.
C. The policy evaluates to False because of c.
D. The policy evaluates to False because of !(a&&b).