單項選擇題

Which switch is the root bridge for VLAN 1?（）

A.Sw-DS1
B.Sw-AC1
C.Sw-AC2
D.Sw-AC3


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2.單項選擇題

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.Fa0/12

3.單項選擇題

What address should be configured as the default-gateway for the host connected to interface Fa0/4 of Sw-AC3?（）

A.192.168.1.254
B.192.168.22.254
C.192.168.33.254
D.192.168.44.254

4.單項選擇題You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into the router locally using a terminal emulation program such as HyperTerminal.（）

A. Connect the PC's COM port to the router's console port using a straight-through cable.
B. Connect the PC's COM port to the router's console port using a rollover cable.
C. Connect the PC's COM port to the router's ethernet port using a straight-through cable.
D. Connect the PC's ethernet port to the router's ethernet port using a rollover cable.
E. Connect the PC's ethernet port to the router's ethernet port using a straight- through cable.

5.單項選擇題After the show ip route command has been entered, the following routes are displayed. Which route will not be entered into the routing table of a neighboring router?（）

A. R 192.168.8.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
B. R 192.168.11.0/24 [120/7] via 192.168.9.1, 00:00:03, Serial1
C. C 192.168.1.0/24 is directly connected, Ethernet0
D. R 192.168.5.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0