National Open University Exam Past Question – CIT 722 OCTOBER/NOVEMBER 2014 EXAMINATION
NATIONAL OPEN UNIVERSITY OF NIGERIA CIT 722 Computer Networks
14-16 AHMADU BELLO WAY, VICTORIA ISLAND LAGOS SCHOOL OF SCIENCE AND TECHNOLOGY OCTOBER/NOVEMBER 2014 EXAMINATION
COURSE CODE: CIT 722
COURSE TITLE: Computer Networks
TIME ALLOWED: 3 Hours
INSTRUCTION: Answer any five (5) questions.
1a. List the geometric representations of computer networks, and explain any three taking into considerations the merits and demerits of each? 10 marks
| 1b. | What is Multiplexing? | 4 marks |
|
2a. |
Explain different areas where networking can be applied. |
10 marks |
|
2b. |
Explain the key elements of a protocol. |
4 marks |
|
3a.
3b. |
List and explain types of networks?
What protocol is used by DNS name servers? |
10 marks
4 marks |
4a. In considering a computer network there are key issues that should be considered, list and explain five of these issues. 10 marks
4c. What is addressing designed to achieve? 4 marks
5a. list five characteristics of a file server? 10 marks
5b. What is a file server? 4 marks
6a. List five types of standard protocols explain stating the advantages and disadvantages. 10 marks
6b. List four basic properties of protocols 4 marks
- Briefly discuss four different types of networking / internetworking devices 14 marks
