多项选择题
Which two forwarding classes have bandwidth assigned when CoS is not explicitly configured inJUNOS software?（）
A. best effort (BE)
B. network control (NC)
C. assured forwarding (AF)
D. expedited forwarding (EF)
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What are two reasons for using a virtual link in OSPF?（）
A. Provides fast convergence times.
B. Supports connections of multiple backbones.
C. Eliminates the need for a Designated Router.
D. Supports non direct connections to the backbone. -
单项选择题
By default, to which peers will a BGP router advertise routes learned from IBGP peers?（）
A. all BGP peers
B. all IBGP peers
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单项选择题
What is a function of the OSPF Type 7 LSA?（）
A. It describes the reachability of routes in stub areas.
B. It describes the reachability of routes in totally-stubby areas.
C. It describes the reachability of routes in not-so-stubby areas.
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