多項(xiàng)選擇題Which statements are true regarding ISDN channels?()

A. Each B channel can transmit up to 64 kbps
B. The ISDN B channel carries voice or data
C. The ISDN D channel transmits control information.
D. The D channel transmission rate varies depending on the service used.
E. HDLC or PPP can be used to encapsulate D channel information.


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2.單項(xiàng)選擇題Which WAN protocol is used for out-of-band signaling?()

A.NCP
B.HDLC
C.LAPB
D.LAPD

3.單項(xiàng)選擇題Inverse ARP is being used in the TestKing frame relay network. What is the purpose of Inverse ARP?()

A. To ma a known IP address to a MAC address
B. To map a known DLCI to a MAC address
C. To ma a known MAC address to an IP address
D. To ma a known DLCI address to a IP address
E. To ma a known IP address to a SPID address
F. To ma a known SPID address to a MAC address

4.多項(xiàng)選擇題WAN data link encapsulation types include which of the following?()

A. T1
B. Frame Relay
C. DSL
D. PPP
E. ISDN
F. IPX

5.多項(xiàng)選擇題Which of the following commands would be applied to a WAN interface, but not on LAN Interface?()

A. IP address
B. encapsulation PPP
C. no shutdown
D. PPP authentication CHAP
E. Speed
F. None of the above

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Which of the following describe router functions?()

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