单项选择题

What defines a BGP confederation?（）

A. autonomous-system 64555;confederation 1111 ;
B. autonomous-system 64555; confederation 1111 members [ 64555 64777 ];
C. confederation 64555; autonomous-system 1111 members [ 64555 64777 ];
D. sub-autonomous-system 64555; confederation 1111 members [ 64555 64777 ];

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多项选择题

Which two conditions, when met, allow an IS-IS Level 2 router to be considered attached?（）

A. You can reach other Level 2 routers.
B. It can reach at least one other defined area.
C. The router is reachable by at least two ES-IS nodes.
D. It has at least one enabled reachable prefix with a valid metric defined.

多项选择题

Which two are characteristics of both Kompella and Martini-based VPNs? （）

A. label stacking
B. auto-provisioning
C. circuit status vector
D. Martini Encapsulation
E. LDP-based control plane

单项选择题

Which extension to the OSPFv2 protocol supports traffic engineering?（）

A. LSA Type 8
B. LSA Type 9
C. LSA Type 10
D. Transparent LSA