单项选择题

A. All VLANs except the default VLAN will be removed fr……

Refer to Topic TestKing.com in iPAD document.What happens to the network when TestKingX is reconnected and a trunk exists between the two switches?（）

A. All VLANs except the default VLAN will be removed from all switches.
B. All existing switches will have the students, admin, faculty, Servers, Management,Production, and no-where VLANs.
C. The VLANs Servers, Management, Production, and no-where will replace the VLANs on SwX.
D. The VLANs Servers, Management, Production, and no-where will be removed from existing switches.

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多项选择题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.

单项选择题Which ISDN device converts the four-wire BRI signals from an S T interface into two-wire signals of a U interface?（）

A.TE1
B.NT-2
C.TA
D.TE2
E.NT-1

单项选择题Which WAN protocol is used for out-of-band signaling?（）

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

单项选择题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

多项选择题WAN data link encapsulation types include which of the following?（）

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