Refer to Topic TestKing.com in iPAD document.To which port of TestKing3 is router VLAN-R1 connected?（）

单项选择题Refer to Topic TestKing.com in iPAD document.What interface did Sw-AC3 associate with source MAC address 0010.5a0c.ffba?（）

A.Fa0/1
B.Fa0/3
C.Fa0/6
D.Fa0/8
E.Fa0/9
F.Fa/12

单项选择题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.

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