Computer Networks
moe1990
IT210Assignment2.docx|
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Question Four |
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Assignment 2
Deadline: Friday 15/11/2019 @ 23:59
[Total Mark for this Assignment is 6]
Computer Networks
IT210
College of Computing and Informatics
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Question One
1.5 Marks
Learning Outcome(s):
Illustrate network protocols including Transport Control Protocol / Internet Protocol
One of the main duties of the network layer is packetizing, explain this duty using your own words.
Answer:
Question Two
1.5 Marks
Learning Outcome(s):
Demonstrate protocol configuration, network-addressing schemes and analyze packet transmission
Illustrate network protocols including Transport Control Protocol / Internet Protocol
Make a forwarding table for router R1 using the configuration below (use decimal notation).
Answer:
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Network address/ mask |
Next hop |
interface |
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-- |
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-- |
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-- |
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-- |
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Default |
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Question Three
1.5 Marks
Learning Outcome(s):
Illustrate network protocols including Transport Control Protocol / Internet Protocol
In an IPv4 packet, the value of HLEN is 7, and the value of the total length field is 43 in hexadecimal. How many bytes of data are being carried by this packet? Also, write options bytes.
Answer:
Question Four
1.5 Marks
Learning Outcome(s):
Illustrate network protocols including Transport Control Protocol / Internet Protocol
Consider the hexadecimal numbers below which represents the first 20 bytes of an IP packet:
17 00 00 50 00 01 60 00 03 59 D1 A8 D8 3A C6 4E AC D9 12 E5 …..Based on packet, answer the following:
Answer:
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Questions |
Answer |
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How many bytes is the payload? |
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Can this packet be further segmented? |
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Which upper layer protocol has been used? |
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How many hops can this packet visit before being discarded? |
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Is this packet the last packet? Why? |
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What is the source ip address? |
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