單項(xiàng)選擇題

Which condition must be met to allow a PE router to forward VPN traffic across a LSP in a Layer 3 VPN environment?（）

A. The BGP next hop must be in inet.1.
B. The BGP next hop must be in inet.3.
C. Must have a bidirectional LSP configured.
D. Must have a static route to allow an ARP for connected interfaces.

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單項(xiàng)選擇題

Which statement describes the purpose of BGP route damping?（）

A. Avoid interface bandwidth saturation.
B. Drop BGP routes when the routing-table becomes full.
C. Remove unnecessary route attributes when not in use.
D. Limit the effects of a flaping interface on route removal and readvertisement.

多項(xiàng)選擇題

Which three authentication options does OSPF support?（）

A. DES
B. MD5
C. Kerberos
D. unauthenticated
E. simple password