11. What is the problem of the Silly Window Syndrome? a) b) c) d) Lost packets I
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Question
11. What is the problem of the Silly Window Syndrome? a) b) c) d) Lost packets Ineffective use of network bandwidth (resource) Out of sequence delivery Unreliable data transfer 12. What problem does the Nagle's solution attempt to solve with respect to the Silly Windows Syndrome? a) b) c) d) Reduce latency time with sending out data More efficiently utilize the network bandwidth and resouces Reduce router table size Perform error correction 13. What is the "cost of" of implementing the Nagle's solution? a) increases latency time with sending out data b) inefficiently utilizes the network bandwidth and resouces. c) increases the router table size d) allows errors to go uncorrected 14. Which of the following will trigger a retransmission? a) b) c) d) Retransmission Time Out (RTO) A special control message from the receiver Two duplicate ACK segments None of the above 15. Which of the following is a correct statement of slow start for TCP congestion control? a) Increase cwndby one MSS for each segment acknowledged b) Increase cwd by a random number after each ACK c) Increase cwd by one for each ACK d) None of the aboveExplanation / Answer
11. Answer is b.
Explanation :
A serious problem can arise in the sliding window operation when the sending application program creates data slowly, the receiving application program consumes data slowly, or both.
12. The answer is b.
Nagle's algorithm is a means of improving the efficiency of TCP/IP networks by reducing the number of packets that need to be sent over the network.
13. Answer is a.
This increase in the the latency time with sending out data is the cost.
14. The answer is a. (RTO)
In an effort to rid the world of needless application and network performance slowdowns, we turn to retransmission
timeouts (RTOs).
15. Answer is C.
Slow-start is part of the congestion control strategy used by TCP, the data transmission protocol used by many Internet application. Slow-start is used in conjunction with other algorithms to avoid sending more data than the network is capable of transmitting .Slow-start begins initially with a congestion window size (cwnd) of 1, 2, 4 or 10 MSS. The value of the Congestion Window will be increased by one with each acknowledgement (ACK) received,
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