8 Questions
What is the average TCP throughput given that thruput is $\frac{3}{4}W$ per RTT?
$\frac{3W}{4}$ bytes/sec
To achieve 10 Gbps throughput with 1500 byte segments and 100ms RTT, how many in-flight segments are required?
83,333
In the context of TCP Fairness, what is the fairness goal for multiple TCP sessions sharing the same bottleneck link?
Each session should have an average rate of $\frac{R}{K}$
How is fairness maintained in TCP when two competing sessions are sharing a bottleneck link?
Through additive increase and multiplicative decrease mechanisms
In the context of fairness and UDP, why do multimedia apps often not use TCP?
To avoid congestion control mechanisms
What are the principles behind transport layer services as summarized in Chapter 3?
Multiplexing, demultiplexing, reliable data transfer, flow control, and congestion control
What does TCP use for congestion avoidance when there is a loss in throughput?
Additive increase
Why might multimedia applications opt for UDP instead of TCP?
To avoid rate throttling by congestion control mechanisms
Explore how error detection works in the transport layer with the use of acknowledgements (ACKs) and negative acknowledgements (NAKs). Learn about mechanisms like retransmission in protocols such as rdt2.0 to recover from errors induced by bit flips in the underlying channel.
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