True or False: In a non-preemptive queueing system with multiple priority classe
ID: 3727341 • Letter: T
Question
True or False:
In a non-preemptive queueing system with multiple priority classes, the delay performance for the highest priority class is the same as if the highest priority users would be alone in the system
A parity check bit cannot detect 3 errors in a codeword
The M/M/1 delay formula can be derived using the same approach as the one used for the P-K formula
The M/D/1 queue has minimum delay compared to other service distributions for the server queues
The Go-Back-N ARQ protocol is always more efficient than the stop and wait ARQ
Explanation / Answer
Solution:
In a non-preemptive queueing system with multiple priority classes, the delay performance for the highest priority class is the same as if the highest priority users would be alone in the system
True
A parity check bit cannot detect 3 errors in a codeword
False
The M/M/1 delay formula can be derived using the same approach as the one used for the P-K formula
True
The M/D/1 queue has minimum delay compared to other service distributions for the server queues
True, we can infer that Mean queue length in M/M/1 queue is twice that in M/D/1 queue.
The Go-Back-N ARQ protocol is always more efficient than the stop and wait ARQ
True, stop and wait ARQ wastes more bandwidth comparatively
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