A.BGP peers must be Layer 2-adjacent.
B.EBGP multihop is not configured.
C.The firewall is not configured to allow IP protocol 89.
D.The firewall is not configured to allow UDP 179.
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A.route redistribution
B.import and export using route descriptors
C.import and export using route targets
D.Cisco MPLS Traffic Engineering
A.LSA 1
B.LSA 3
C.LSA 4
D.LSA 5
E.LSA 7
A.IP prefix
B.Layer 2 circuit
C.RSVP request from CE for bandwidth reservation
D.BGP MED value
A.They are used to summarize area routes to other areas.
B.They are used in not-so-stubby areas to propagate external routes.
C.They are used to notify areas of the ASBR.
D.They are flooded to all areas except stub areas （external route）.
A.The Layer 2 multicast address of the destination node
B.The solicited node multicast address of the destination node
C.The Layer 2 address of the destination node based on the destination IPv6 address
D.The IPv6 address of the destination node based on the destination Layer 2 address
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