DATA LINK LAYER CONTROL

Quiz
•
Computers
•
University
•
Medium
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In ______, the chance of collision can be reduced if a station senses the medium before trying to use it.
CSMA
MA
CDMA
FDMA
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The original ALOHA protocol is called
simple ALOHA
pure ALOHA
CSMA
FDMA
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
__________ augments the CSMA algorithm to detect collision.
CSMA/CD
CSMA/CA
either (a) or (b)
both (a) and (b)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the _________ method, after the station finds the line idle, it sends its frame immediately. If the line is not idle, it continuously senses the line until it finds it idle.
p-persistent
nonpersistent
1-persistent
none of the above
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In ___________ methods, no station is superior to another station and none is assigned the control over another.
controlled access
random access
channelization
none of the above
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the ________method, a station that has a frame to send senses the line. If the line is idle, it sends immediately. If the line is not idle, it waits a random amount of time and then senses the line again.
controlled access
nonpersistent
p-persistent
none of the above
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To avoid collisions on wireless networks, ________was invented.
CSMA/CD
CSMA/CA
either (a) or (b)
both (a) and (b)
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