Podcast
Questions and Answers
What is the maximum channel utilization in ALOHA?
What is the maximum channel utilization in ALOHA?
- 12%
- 30%
- 25%
- 18% (correct)
In ALOHA, what does a station do if it fails to receive an acknowledgment after repeated transmissions?
In ALOHA, what does a station do if it fails to receive an acknowledgment after repeated transmissions?
- Sends an error message
- Transmits immediately
- Increases the frame length
- Gives up (correct)
What is the vulnerable time for slotted ALOHA protocol?
What is the vulnerable time for slotted ALOHA protocol?
- Equal to the frame length
- 2 slot times
- Equal to the round-trip propagation delay
- 1 slot time (correct)
How long does a sender wait for an acknowledgment in ALOHA?
How long does a sender wait for an acknowledgment in ALOHA?
What is the procedure for retransmission if no acknowledgment is received in ALOHA?
What is the procedure for retransmission if no acknowledgment is received in ALOHA?
How is channel utilization defined?
How is channel utilization defined?
What happens if a station fails to receive an acknowledgment after repeated transmissions in ALOHA?
What happens if a station fails to receive an acknowledgment after repeated transmissions in ALOHA?
How does the vulnerable time affect the efficiency of slotted ALOHA?
How does the vulnerable time affect the efficiency of slotted ALOHA?
What happens if a sender does not receive an acknowledgment within the vulnerable time in slotted ALOHA?
What happens if a sender does not receive an acknowledgment within the vulnerable time in slotted ALOHA?
Flashcards are hidden until you start studying
