單項(xiàng)選擇題What speeds must be disabled in a mixed 802.11b/g WLAN to allow only 802.11g clients to connect?()

A. 6, 9, 12, 18
B. 1, 2, 5.5, 6
C. 5.5, 6, 9, 11
D. 1, 2, 5.5, 11


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1.單項(xiàng)選擇題Which port state is introduced by Rapid-PVST?()

A. learning
B. listening
C. discarding
D. forwarding

3.單項(xiàng)選擇題Which command will show the MAC addresses of stations connected to switch ports?()

A. show mac-address
B. show arp
C. show table
D. show switchport

4.單項(xiàng)選擇題QoS policies are applied on the switches of a LAN. Which type of command will show the effects of the policy in real time?()

A. show command
B. debug command
C. configuration command
D. rommon command

5.單項(xiàng)選擇題How many subnets can be gained by subnetting 172.17.32.0/23 into a /27 mask, and how many usable host addresses will there be per subnet?()

A. 8 subnets, 31 hosts
B. 8 subnets, 32 hosts
C. 16 subnets, 30 hosts
D. 16 subnets, 32 hosts
E. A Class B address can't be subnetted into the fourth octet.