21 Jun Question 1: The address depletion o
Question 1: The address depletion of IPv4 and other shortcomings of this protocol prompted a new version of IP
known as IPv6. Explain the advantages of this new IPv6 when compared to IPv4? (5 marks)
Question 2: Migrating from IPv4 to IPv6 is known as the transition from version 4 to version 6 and requires formal
strategies to handle this transition. Explain each of the strategies for this migration process using appropriate
examples. (5 Marks)
Question 3: Calculate the approximate bit rate and signal level(s) for a 4.2 MHz bandwidth system with a signal to noise
ratio of 170. (5 Marks)
Question 4: In a peer-to-peer (P2P) network, Internet users that are ready to share their resources become peers and
form a network. Describe the differences between centralised and decentralised P2P networks? Discuss the advantages and
disadvantages of both networks. (5 Marks)
Question 5: What is the total delay (latency) for a frame of size 5 million bits that is being sent on a link with 12
routers each having a queuing time of 4 µs and a processing time of 2 µs. The length of the link is 2600 km, the speed
of light inside the link is 2.2 x 108 m/s, the link has a bandwidth of 6 Mbps. Which component(s) of the total delay
is/are dominant? Which one(s) is/are negligible? (5 Marks)
Question 6: Briefly explain the working of FTP with a flo
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