What is the characteristic of 802.11a ( ).
A. Transmits at 2.4 GHz
B. Transmits at 5 GHz
C. Is the slowest and least expensive standard
D. Is the most widely available of the standards
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What is the characteristic of 802.11b ( ).
A. Is backward compatible with predecessors
B. Transmits at 5 GHz
C. Is the slowest and least expensive standard
D. Is the most widely available of the standards
What is the characteristic of 802.11g? ( ).
A. Uses Orthogonal Frequency-Division Multiplexing coding technique
B. Transmits at 5 GHz
Can achieve speeds as high as 140 megabits per second
D. Can transmit up to four streams of data
Which one could be recognized as Wi-Fi hotspot in definition. ( )
A. Wireless network in home with personal username and password
B. Wire network which connect by CAT-6 cable.
Cellular network
D. Wireless network in public area
Which one is the element which is included in the unit of a wireless network ( ).
A. Router
B. Firewall
C. Browser
D. A port to connect to cable or DSL modem
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