单项选择题When is a switched network that is running the Spanning Tree Protocol considered to be fully converged?()

A. when all switches have the same BID as the root switch
B. when all switches have received the MAC address of each neighboring switch
C. when every enabled switch port has been assigned a unique identifier
D. when every operating switch port is in either the blocking or forwarding state
E. when all switches are in either client, server, or transparent mode


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1.单项选择题At a branch location, TestKing.com has deployed a non modular router that is equipped with two serial interfaces and two Ethernet interfaces.What additional equipment must be used to allow the branch office to connect to the central office by using an ISDN service?()

A. a serial cable with a V.35 to RJ45 adapter
B. a CSU/DSU
C. an external ISDN TA and NT1
D. The non-modular router cannot connect to an ISDN service. The network administrator must purchase a modular router with an ISDN BRI-U card.

2.单项选择题At a branch location, TestKing.com has deployed a non modular router that is equipped with two serial interfaces and two Ethernet interfaces.What additional equipment must be used to allow the branch office to connect to the central office by using an ISDN service?()

A. a serial cable with a V.35 to RJ45 adapter
B. a CSU/DSU
C. an external ISDN TA and NT1
D. The non-modular router cannot connect to an ISDN service. The network administrator must purchase a modular router with an ISDN BRI-U card.

3.多项选择题What are two results of entering the Switch(config)# vtp mode client command on a Catalyst switch?()

A. The switch will ignore VTP summary advertisements
B. The switch will forward VTP summary advertisements
C. The switch will process VTP summary advertisements
D. The switch will originate VTP summary advertisements
E. The switch will create, modify and delete VLANs for the entire VTP domain

6.单项选择题Refer to Topic TestKing.com in iPAD document.Which switch is the root bridge for VLAN 1?()

A.TestKingD
B.TestKing1
C.TestKing2
D.TestKing3

7.多项选择题Refer to Topic TestKing.com in iPAD document.Which ports on TestKing3 are operating as trunks?()

A.Fa0/1
B.Fa0/3
C.Fa0/4
D.Fa0/6
E.Fa0/9
F.Fa0/12

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

A. Fa 0/1
B. Fa 0/3
C. Fa 0/6
D. Fa 0/8
E. Fa 0/9
F. Fa 0/12

10.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.

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