多项选择题
Which three statements about L2TPv3 are true？（）
A.L2TPv3 Frame Relay support includes only 32-bit DLCI addressing
B.L2TPv3 sessions do not support Frame Relay LMI interworking
C.Multipoint DLCI is not supported
D.To use DCE or a Network-to-Network Interface on a Frame Relay port， you must configure the frame-relay switching command
E.L2TPv3 feature does not support Frame Relay extended addressing
相关考题
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单项选择题
WhichstatementaboutOSPFauthenticationistrue？（）
A.To enable OSPF authentication in a network， OSPF area 0 authentications must be enabled first
B.The payload of OSPF version 3 packets contains no authentication information
C.OSPF version 3 supports Advanced Encryption Standard
D.OSPF version 3 uses router ID as a key to encrypt OSPF hello packets
E.OSPF MD5 authentication uses TCP， and Plan Test authentication uses UDP -
多项选择题
WhichthreestatementsaboutbidirectionalPIMaretrue？（）
A.Traffic for a bidirectional group flows along the one shared tree and simultaneously utilizes multiple paths in a redundant network topology
B.It does not require any traffic signaling in the protocol
C.Membership to a bidirectional group is signaled using explicit Join messages
D.It maintains source-specific forwarding state
E.It reduces memory， bandwidth， and CPU requirements -
多项选择题
WhichfourservicesusetheinnerlabelsofanMPLSlabelstack？（）
A.MPLS VPN
B.switching path in MPLS core
C.Cisco MPLS Traffic Engineering and Fast Reroute
D.MPLS over ATM
E.VPN over Traffic Engineering core
F.any transport over MPLS
