单项选择题
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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单项选择题
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. -
多项选择题
Which three authentication options does OSPF support?（）
A. DES
B. MD5
C. Kerberos
D. unauthenticated
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单项选择题
Which JUNOS software feature allows a user to define specific next-hop values for IP packets based on the source IP address of that packet?（）
A. MPLS
B. Load Balancing
C. Class Based Forwarding
D. Filter Based Forwarding
