How to login to NOUN Elearn Portal
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COURSE CODE: CIT 311
COURSE TITLE: Computer Networks
DURATION: 2 Hours, 30 Minutes
INSTRUCTIONS: Answer any five questions. Cordless nonprogrammable calculators may be used.
Q1a. Write brief notes on the following network types:
Q1b. Briefly describe three main applications of a computer network
Q2a. Using sketches describe three different types of network topologies.
Q2b. Briefly describe the OSI Reference model listing all its layers in their proper order.
Q3a. Briefly describe the following:
i. IEEE Standard 802.3 Ethernet
ii. IEEE Standard 802.3 Ethernet
Q4a. Explain what transmission medium is using three examples to illustrate.
Q4b. Distinguish between Data Rate and Bandwidth.
Q5a. Briefly describe two sliding window techniques.
Q5b. write brief notes on each of the following routing algorithms:
i. Shortest Path routing
ii. Flooding
Q6a. Briefly explain the main factors that bring about network congestion.
Q6b. Write a brief note on each of the following:
i. Modem
ii. Bridge
iii. Hub
iv. Repeater
Q7a. Briefly describe the concept of Quality of Service (QoS).
Q7b. Briefly describe the format of a TCP Header.
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You can now use you matric number to login as your username and password in a lowercase.
https://elearn.nouedu2.net/login/
Note that you are to change your passw...
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