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COURSE CODE: CIT 311
COURSE TITLE: Computer Networks
DURATION: 3 Hours
INSTRUCTIONS: Answer any five (5) questions.
Q1a. Give a brief description of the concept of ring topology. (4 marks)
Q1b. State four (4) requirements for an efficient traffic control mechanism. (12 marks)
Q2. Write the key function of the following:
i. Bridges (3 marks)
ii. Transport Layer (3 marks)
iii. Routers (2 marks)
iv. Repeaters (3 marks)
v. Datagrams (3 marks)
Q3a. Distinguish between Baseband and Broadband Communication. (10 marks)
Q3b. Give 2 regular applications of Integrated Services Digital Network (ISDN) (4 marks)
Q4. Electronic mails have become very popular in transferring information, specify any 7 features of this mode of information transfer.
Q5a. Give 2 common problems that can occur in RIP. (4 marks)
Q5b. State any five (5) tasks which a modem can perform. (10 marks)
Q6a. Give the full meaning of the following acronym, PTI, within the context of computer Networks. (2 marks)
Q6b. Describe how the ATM protocol works. (12 marks)
Q7. Specify the status of the modem indicator light in the following settings:
a. When receiving a call. (4 marks)
b. If the modem is sending data. (4 marks)
c. When the modem detects the remote modem’s carrier. (4 marks)
d. If the computer is ready to send or receive data. (2 marks)
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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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