单项选择题A switch is configured with all ports assigned to vlan 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?()

A. More collision domains will be created.
B. IP address utilization will be more efficient.
C. More bandwidth will be required than was needed previously.
D. An additional broadcast domain will be created.


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1.单项选择题Which switch would STP choose to become the root bridge in the selection process?()

A. 32768: 11-22-33-44-55-66
B. 32768: 22-33-44-55-66-77
C. 32769: 11-22-33-44-55-65
D. 32769: 22-33-44-55-66-78

3.单项选择题Where does routing occur within the DoD TCP/IP reference model?()

A. application
B. internet
C. network
D. transport

5.单项选择题For the network 192.0.2.0/23, which option is a valid IP address that can be assigned to a host?()

A. 192.0.2.0
B. 192.0.2.255
C. 192.0.3.255
D. 192.0.4.0

7.单项选择题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

8.单项选择题Which port state is introduced by Rapid-PVST?()

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

10.单项选择题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