Recent Question/Assignment
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 flow diagram. How does it differ from SCP? What are the security
considerations in FTP? (5 Marks)
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 flow diagram. How does it differ from SCP? What are the security
considerations in FTP? (5 Marks)
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