QOS

Unanswered Question
Mar 30th, 2008
User Badges:

Which queing and compression techniques are needed to effectively use the available bandwidth for voice traffic? (Choose the best Two)

A. CBWFQ

B. LLQ

C. PQ or CQ

D. RTP header compression

E. TCP header compression

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
royalblues Sun, 03/30/2008 - 10:39
User Badges:
  • Green, 3000 points or more

B & D would be my choice


Narayan



Pavel Bykov Mon, 03/31/2008 - 00:37
User Badges:
  • Silver, 250 points or more

B and D are actually the correct answers.


Wrong answers:

A: does not have a priority Queue

C: PQ is ok with policing (which is not mentioned) but CQ is not good for voice.

E: Voice uses extremely low bandwidth control data stream in TCP, that can tolerate loss and delay, so you needn't worry too much about TCP.

Joseph W. Doherty Mon, 03/31/2008 - 04:59
User Badges:
  • Super Bronze, 10000 points or more

BTW: Choices A and B might cause some confusion since (LLQ) "The Low Latency Queueing feature brings strict priority queueing to Class-Based Weighted Fair Queueing (CBWFQ).".

Actions

This Discussion