12) At 10 meters, a signal has a strength of 100 mW. About how strong will it be
ID: 3682858 • Letter: 1
Question
12) At 10 meters, a signal has a strength of 100 mW. About how strong will it be at 40 meters?
A) about 0.5 mW
B) about 5 mW
C) about 25 mW
D) about 6 mW
14) What propagation problem becomes worse as there is a large and dense object between
sender and receiver?
A) multipath interference
B) shadow zones or dead zones
C) both A and B
D) neither A nor B
38) ________ have SSIDs.
A) Wireless clients
B) Wireless access points
C) both A and B
D) neither A nor B
50) CSMA/CD+ACK is ________.
A) unreliable
B) reliable
C) semireliable
52) The 802.11 standard has two mechanisms for media access control. One of two mechanisms
is mandatory; it is ________.
A) MAC
B) CSMA/CA+ACK
C) RTS/CTS
D) CSMA/CD
61) MIMO ________.
A) bonds two or more channels for higher speed
B) is used in all forms of 802.11
C) uses a single spatial stream but multiple signals
D) transmits multiple signals in the same channel
Explanation / Answer
12)about 0.5 mW
14) shadow zones or dead zones
38)both A and B
50)CSMA/CD+ACK is
A) unreliable
52)CSMA/CD
61) MIMO is used in all forms of 802.11
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.