Penalties for cheating are exclusion from the

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Penalties for cheating are exclusion from the University and cancellation with academic penalty from the unit concerned.
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Term 3 Standard Examination 2017 COIT20261 — Network Routing and Switching Page 1 of 6 Instructions Sheet 1. Write all answers in the Examination Answer Booklet provided. 2. This examination contains three parts, Parts A, B and C. 3. Answer all questions in all three parts, Parts A, B and C. 4. Write your answers clearly, using numbered headings or subheadings to show which part of your answer refers to which question. Example: Part B – Question 2a). 5. The total number of marks available in the examination is 60.
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Term 3 Standard Examination 2017 COIT20261 — Network Routing and Switching PART A 21 MARKS SHORT ANSWER QUESTIONS Answer ALL questions from this part. Each question is worth 1.5 marks (14 x 1.5 = 21 marks). Question 1 List three differences between UDP and TCP. Question 2 What does “path MTU discovery” in IPv6 refer to? Question 3 In your own words, briefly explain the function of the garbage collection timer in RIP Question 4 Identify 3 differences between Distance Vector routing protocol and the Link State routing protocol. Question 5 Fragment offset value is 200. What is the number of the first byte? Question 6 What is the purpose of the hop limit field in the base header of an IPv6 datagram? Question 7 What is the purpose of an access point in a Wi-Fi network? Question 8 What is the maximum size of an IPv4 header? Question 9 Explain why IPv4 datagrams contain a checksum, but IPv6 datagrams do not. Question 10 What is a DNS resolver? Explain. Page 2 of 6
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Term 3 Standard Examination 2017 COIT20261 — Network Routing and Switching Page 3 of 6 Question 11 Explain Default forwarding and what the mask and the destination addresses of the routing table should be for a default forwarding entry?
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