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Computer Networks-Lecture,Section-2-Spring 2025
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In the TCP protocol, timers are used
Why might an application developer choose to run an application over UDP rather than TCP?
The network layer encapsulates transport layer _______ to create network layer ______.
Which of the following statements correctly compares the Stop-and-Wait protocol with a Pipelined protocol in data transmission?
The delay occurs due to the length of the physical link is ________.
Hosts A and B are communicating using TCP. Host A transmits a segment containing 700 bytes of data to host B. At the time of reception, host B's receive buffer has 5000 bytes of available space. Assuming the process reads data from the buffer immediately after determining the Receive Window value, what will be the advertised Receive Window size by Host B after successfully receiving the segment?
Hosts A and B are using TCP for communication. Suppose Host A sends two segments, S1 and S2, back-to-back, with sequence numbers 1200 and 2000, respectively. Host B correctly receives both segments and responds with acknowledgments having acknowledgment numbers Y and 2500, respectively. What are the values of Y and the size of the data field in S2?
Suppose two hosts, A and B, use a TCP (Reno) connection, where host A is transmitting a very large file to host B. The initial slow start threshold (ssthresh) of host A is set to 16. Suppose a timeout event occurs in round 7, and a triple-duplicate-acknowledgment event occurs in round 11. If no further packet loss occurs after round 11, in which transmission round will host A send its 100th packet?
Suppose two hosts, A and B, are using a pipelined protocol as the transport layer protocol. For host A, it takes 1 millisecond to transmit a packet into the link (that is, transmission delay = 1 ms). The round-trip time (RTT) between A and B is 24 milliseconds. Assume that ACK packets have negligible length, the window size is N = 5, and the link is reliable, meaning no segments are lost. What is the channel/sender utilization?
Which of the following services is NOT provided by the TCP protocol?