Knowledge checks


TCP’s AIMD algorithm.



Which of the following statements about TCP’s Additive-increase-multiplicative-decrease (AIMD) algorithm are true?  Check all that are true.




 

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1/6

TCP’s AIMD algorithm (2).



How is the sending rate typically regulated in a TCP implementation?




 

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2/6

TCP’s Slowstart algorithm.



  Which of the following best completes this sentence: "In the absence of loss, TCP slow start increases the sending rate ... "




 

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3/6

Uncontrolled transport-layer senders.



Consider the transport-layer flows interacting at a congested link.  In the face of such congestion, what happens at this link to a transport-layer flow that does not cut back on its sending rate?




 

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4/6

TCP CUBIC.



Assuming that the congestion window size,cwnd, has not yet reached Wmax, TCP CUBIC will ... (check all that apply)




 

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5/6

Delay-based congestion control. 



For delay-based congestion control, match the sender action to the relationship  of the currently measured throughput to the value of cwnd/RTTmin



Question List:
Answer List:
  1. decrease the sending rate
  2. This should never happen.
  3. increase the sending rate

 

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6/6

We gratefully acknowledge the programming and problem design work of John Broderick (UMass '21), which has really helped to substantially improve this site.

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