Question

1. Follow the steps below:
• Start Wireshark.
• Turn on Wireshark capture
• Type a URL in your browser window (www.yahoo.com)
• After a few seconds, stop the capture.
• Answer the following questions:

a) What was the IP address of the web server? Create a text file and type your answers in it.
b) Find the frame in which your PC sent the SYN packet. List the source and destination IP address, the source and destination port numbers, and the header checksum. Take a snapshot and paste it into your text file.
c) Select the SYN/ACK packet. List the source and destination IP address, the source and destination IP address, the source and destination port numbers, and the header checksum. Take a snapshot and paste it into your text file.
d) Select the packet that acknowledges the SYN/ACK segment. List the source and destination IP address, the source and destination IP address, the source and destination port numbers, and the header checksum. Take a snapshot and paste it into your text file.
e) Change the options so that only packets you send are recorded. Take a snapshot and paste it into your text file.

2. Draw the network diagram which is given to you by Microsoft office Visio. Take a snapshot of your Visio drawing and inset it to your text file.

3. Answer the following questions:
a) Which of the following is connectionless – Ethernet, IP, TCP? Explain why.
b) Which of the following is unreliable – Ethernet, IP, TCP, UDP? Explain why.
c) A tester shows that a UTP cord has too much interference. What might be causing the problem? Give at least two alternative hypotheses.
d) You find that every time you heat your frozen dinner in the microwave, your hulu plus video streaming starts buffering on your laptop. What could be the problem?

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Question 3
a. In telecommunication parlance, the term connectionless is used to refer a technique of communication between two end points when a message can be transmitted from one to another without any arrangement, like connection setup, handshaking and so on. In a connectionless communication, sender does not need to ensure availability of the receiver. Whenever, data is available with the sender, it can send to the receiver. If there is any trouble during the transmission of data, like packet loss and so on, then there will be re-transmission of data (Tanenbaum & Wetherall, 2013).
• Ethernet is connectionless as it does not depend on a pre-arrangement between sender and receiver for data transmission (Forouzan, 2011)....

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