Which two forwarding classes have bandwidth assigned when CoS is not explicitly configured inJUNOS software?（）

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.

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

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.
D. It describes the reachability of routes in partially-stubby areas.