單項(xiàng)選擇題Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?()

A.IETF
B.HDLC
C.Q9333-A Annex A
D.ANSI Annex D


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2.多項(xiàng)選擇題Which two options are valid WAN connectivity methods?()

A.PPP
B.WAP
C.DSL
D.Ethernet
E.L2TPv3

3.單項(xiàng)選擇題At which layer of the OSI model dose PPP perform?()

A.Layer 3
B.Layer 4
C.Layer 2
D.Layer 5

5.單項(xiàng)選擇題which command is used to enable CHAP authentication whit PAP as the fallback method on a serial interface?()

A.(config-if)#authentication ppp chap fallback ppp
B.(config-if)#authentication ppp chap pap
C.(config-if)#ppp authentication chap pap
D.(config-if)#ppp authentication chap fallback ppp