Please review the WireShark traces given in the resource folder and answer the following questions.All answer worth 1 mark unless shown below Question A.Use the TCP Trace to answer the following...

Please review the WireShark traces given in the resource folder and answer the following
questions.All answer worth 1 mark unless shown below Question A.Use the TCP Trace to answer the following questions.1. Examine packets 1 & 2, what is the MSS for packet 1, what is the MSS for packet 2, whyare they different. 2. What does the ACK field, in message 5, tell the receiver?3. Which bytes for the HTTP packet 27 are contained in other segments?4. What object has been requested at packet 4.5. What is the win value in packet 2 and what does it tell the receiver? 6. Which three packets are used to open the TCP connection?7. Which four packages close the TCP connection?8. Does this trace indicate that there is congestion? If so describe how.9. What browser is being used by the client?10. What server is delivering the web pages?11. What does the CName record for pgaead2.googl.com containExamine packets 5 to 1212. What is the average RTT – show calculation 13. How many bytes were sent be the server?14. What is the approximate transmission rate = show calculation Examine packet 3815. What does the E_tag field tell the receiver?16. What do the time-out values tell the receiver? COS20012/COS7007 DATA COMMUNICATION AND SECURITYASSIGNMENT 2, SEMESTER 1, 2020 3Question B.Use the Wi-Fi Trace to answer the following questions.Examine Packet 117. Does this frame come from a host or from an access point? What details in the tracesupport your answer? 18. There are a lot of beacon frames used. Research what a beacon frame is and describethe expected fields in a Beacon Frame. Connect your answer with packet 571 Examine Frame 70019. What Transmissions rates are supported?20. What encryption protocol is being used?21. What is the PWR MGT filed used for?22. What is a cipher suite list?Question CUse the OSPF Trace to answer the following questions.Examine Frame 1923. What sub net is being advertised?24. How many hosts are in this subnet?25. What is a “stub network”26. What does the “Metric” tell the receiver of this advertisement?27. What is an AS?28. Is this router on the boundary of an AS, provide supporting evidence for your answer?29. What is the ID of the Router that generated the advertisement?Review frame 24.30. You will notice that the frame destination is name IPv4mcast_00:00:05. Is this addressspecial? Explain your answer. 31. The packet seems to contain different types of headers. What is the purpose of the firstheader in the OSPF part of the packet? Examine frame 3132. What is the purpose of the OSPF part?33. Read the packet, under what circumstances would a router be dead?34. What is the backup designated router used for?COS20012/COS7007 DATA COMMUNICATION AND SECURITYASSIGNMENT 2, SEMESTER 1, 2020 435. What is the active neighbour field telling a receiver of this packet?36. Draw a network diagram including nodes and ip addresses and costs where they can bederived from the trace. The drawing should represent the network state just after packet31 has been sent. Question D.Use the Mal Formed Packet to answer the following questions.Wireshark has identified a mal formed packet.37. What is the packet number of the malformed pack?38. What precisely is wrong with the packet?39. What is the name given for this type of malware?Some IP fields are associated with “ECN capable transport”.40. What is ECN capable transport? Examine Frame 841. What fields does the checksum apply to?42. How is the checksum calculated? 43. What response will a router have to a checksum error?44. How is a checksum different from a HASH?Enhancement (10 marks)Email EncryptionYour task here is to write a guide (no more than 3 pages) for encrypting email.This guide must be written so a person who is not an ICT expert (my grandfather) could useyour guide to send and receive encrypted email.Encryption is to be achieved during transmission and when the email is stored.Pictures should be included and will not count in the 3 page limit.
May 29, 2021
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