多項選擇題

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.

單項選擇題

By default, to which peers will a BGP router advertise routes learned from IBGP peers?（）

A. all BGP peers
B. all IBGP peers
C. all EBGP peers
D. all MBGP peers