单项选择题
Which statement about OSPF authentication is true？（）
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
相关考题
-
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 -
单项选择题
WhatisthedefaultmaximumtransmissionunitontheCiscorouterATMinterface？（）
A.4470 bytes
B.1516 bytes
C.9288 bytes
D.1500 bytes
E.1492 bytes
