1) Suppose that TCP's current estimated values for the round trip time (estimatedRTT) and deviation in the RTT (DevRTT) are 270 msec and 38 msec, respectively (see Section 3.5.3 for a discussion of these variables). Suppose that the next three measured values of the RTT are 270, 360, and 220 respectively. Compute TCP's new value of estimatedRTT, DevRTT, and the TCP timeout value after each of these three measured RTT values is obtained.Use the values of = 0.125 and = 0.25.

2) If the bandwidth of the line is 1.5 Mbps, RTT is 45 msec and packet size is 1 KB, then find the link utilization in stop and wait.

3) The following is a dump of a UDP header in hexadecimal form: e5 87 00 35 00 30 5b 6d What is the Source port number Destination port number Total length of the UDP Length of the data Considering that an IP frame can have a maximum total length of 65 535 bytes, what is the maximum length of the data in a UDP frame?

4) Whats the time for a 34Mb/s connection to wrap-around (start reusing sequence numbers)?

5) Suppose a TCP sender sends the following 1000B segments: 1340, 2340, 3340, 4340, 5340, 6340, 7340, 8340. The sender receives the following ACKs: 2340, 3340, 3340, 3340, 3340. No other ACKs arrive. What does the sender need to do?