NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
OCTOBER/NOVEMBER 2014 EXAMINATION

COURSE CODE: CIT 854
COURSE TITLE: NETWORK PROGRAMMING AND DESIGN
TIME ALLOWED: 3 Hours
INSTRUCTION: Answer any five (5) questions

1a. Explain five functions performed by Network Operating Systems. (10 Marks)
1b. Define a network. (2 Marks)
1c. Define network architecture” (2 marks)

2a. List and explain five fields of an IP Packet and their functions. (10 Marks)
2b. In IP Addressing there are vital criteria that need to be considered in other to select a correct IP address, enumerate four of these guidelines. (4 Marks)

3a. The simplest routing technique to understand and implement is the static routing, but it’s not without its limitations. Enumerate the merits and demerits of this routing technique. (10 Marks)
3b. Networked computers combine the advantages of dedicated individual systems with the resource sharing offered by large time- shared systems. List four advantages of installing networks. (4 Marks)
1. Performance Quality
2. Reliability
3. Accessible Resources
4. Incremental Growth of Computing Power
5. Value-added Communication Devices
6. Price/Performance Ratio

4a. In a tabular form list five popular internet applications and state the transport protocols that they use (10 Marks)
4b. Enumerate the advantages of using a bridging internetworking process in network segmentation (4 Marks)

5a. Is TCP preferable to UDP since TCP provides a reliable data transfer service and UDP does not? If Yes what are your reasons and if No what are your reasons? (10 Marks)
5b. In managing a network design there are questions that need to be answered for effective management. List these key questions that should be considered. (4 Marks)

6a. It is imminent that you would have to carryout and audit trail of network activities, tabulate the event type and describe the event that you would audit. (10 Marks)
6b. As a Network Administrator Network management refers to the monitoring and the management of the active functions of computer networks, what are the functional areas of a computer network that are to be managed. (4 Marks)

7a. As a network Administrator discuss five Troubleshooting Equipment (10 Marks)
7b. As a Network Administrator if your router is malfunctioning and it produces bad packets, slow network response, and a high rate of collisions. List four potential trouble spot would you have to check to either troubleshoot or trace the problem. (4 Marks)