A user would like to ensure that only their family and their laptops can access a newly installed wireless router. Which of the following BEST accomplishes this?（）

单项选择题Which of the following wireless networking standards can operate at two different frequenciessimultaneously?（）

A.802.11a
B.802.11b
C.802.11g
D.802.11n

多项选择题Which of the following settings is MOST likely to be controlled through the use of a laptop’sFunction (Fn) key?（）

A. Wireless
B. Brightness
C. Sleep Mode
D. NumPad
E. Power

单项选择题Which of the following display types is likely to draw the LEAST amount of power?（）

A.LCD
B.LED
C.CRT
D.Plasma

单项选择题Which of the following technologies is responsible for communication with the CPU?（）

A. eSATA
B. PCI express
C. Southbridge
D. Northbridge

多项选择题Which of the following cable types can transmit at 100 Mbps and has the SAME transmissiondistance without the use of a repeater?（）

A.CAT6
B.RG-59
C.CAT5e
D.CAT3
E.RG-6