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COURSE CODE: CIT 311
COURSE TITLE: Computer Networks
DURATION: 3 Hours
INSTRUCTIONS: Answer any five (5) questions.
Q1a. Give the full meaning of the following acronyms, within the context of computer networks:
i. GFC (2 marks)
ii. ATM (2 marks)
iii. PTI (2 marks)
iv. VPI (2 marks)
Q1b. Describe how the ATM protocol works. (12 marks)
Q2. Specify the status of the modem indicator light in the following settings:
a. When the modem is powered up. (4 marks)
b. If the computer is ready to send or receive data. (4 marks)
c. When receiving a call. (4 marks)
d. If the modem is sending data. (4 marks)
e. When the modem detects the remote modem’s carrier. (4 marks)
Q3a. Briefly explain the concept of ring topology. (4 marks)
Q3b. Give a good reason why asynchronous transfer modes are considered appropriate for multimedia communication. (4 marks)
Q3c. State four (4) requirements for an efficient traffic control mechanism. (12 marks)
Q4. Specify the main function of the following:
i. Routers ii. Transport Layer iii. Bridges
iv. Repeaters v. Datagrams 5 marks each (20 marks)
Q5a. Distinguish between Baseband and Broadband Communication. (10 marks)
Q5b. Give five (5) common applications of Integrated Services Digital Network (ISDN) (10 marks)
Q6. Electronic mails have become very popular in transferring information, specify any ten (10) features of this mode of information transfer. (20 marks)
Q7a. In the context of computer networks, what does the acronym RIP represent (1 mark)
Q7b. Describe three (3) common problems that can occur in RIP (9 marks)
Q7c. State any five (5) tasks which a modem can perform
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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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