Which of the following operates in the 2.4GHz range and……

单项选择题Which of the following describes an area where communications equipment is stored?（）

A. HVAC
B. MDF
C. 110 block
D. Demarc

单项选择题A new department is formed and a new section of the building is being built out for them. All 50 new employees will need access to the wireless network. Which of the following should be completed to allow these new employees access to the wireless network?（）

A. Frequency settings should be changed
B. Additional WAPs should be installed
C. Channels should be changed
D. VLANs should be added

单项选择题Which of the following is required if ports from VLANs on two separate switches need to broadcastto each other?（）

A. Port mirroring
B. VPN
C. Trunking
D. Port authentication

单项选择题A link light on a switch is an example of which of the following Ethernet properties?（）

A. Collision detection
B. Multiple access points
C. Carrier sense
D. Collision avoidance

单项选择题In order for computers with private IP addresses to access the public Internet, which of thefollowing must the router perform?（）

A.NAT
B.BGP
C.DHCP
D.APIPA