For More Quiz Questions click here to download Global Quiz on Google PlayStore

NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
SEPTEMBER 2020 EXAMINATION

COURSE CODE: CIT 381
COURSE TITLE: FILE PROCESSING AND MANAGEMENT
CREDIT: 2 UNITS
TIME ALLOWED: 2 HOURS
INSTRUCTIONS: ANSWER QUESTION ONE (1) AND ANY THREE (3) OTHERS QUESTION ONE (25MARKS) COMPULSORY


a. Explain any three logical components of a file. 6marks
b. You have been asked to register a large mass of new users into an organization by capturing there basic information such as names, address, sex, phone numbers, DOB etc. The captured information will be required for further processing. As a student of file management, what type of file organization method will you recommend as most efficient for this task and why. 5marks
c. Distinguish between internal fragmentation and file fragmentation. 3marks
d. Write a suitable pseudo code to find a specific record in an indexed sequential file organization. 4marks
e. What is data dictionary? 3marks
f. What are the various causes of Data Corruption during transmission? 2marks
g. What is sorting algorithm? 2marks


QUESTION TWO (15MARKS)
a. Distinguish between the single-level directory and two-level directory system. 4marks
b. State the various criteria required in choosing a file organization. Illustrate this using a file to be processed either in batch mode or a file stored on a CD ROM. 4marks
c. Explain the four security measures that are required to protect the computer system/network. 4marks


QUESTION THREE (15MARKS)
a. In choosing a portion size, discuss the four items to be considered a tradeoff between efficiency from the point of view of a single file relative to overall system efficiency. 5marks
b. Explain the Contiguous Allocation method of memory management. 5marks
c. How do you solve the problem of external fragmentation as a result of contiguous allocation? 5marksQUESTION FOUR (15MARKS)
a. With regard to memory management and access time, discuss any two methods that can be used to improve system file performance. 6marks
b. Mention two techniques to improve reliability in file processing management and vividly explain any one. 4marks
c. What are some of the common causes of data loss in a security environment? 5marks


QUESTION FIVE (15MARKS)
a. List any five preventive measures to protect once computer against virus attack. 5marks
b. Explain the term “Denial of Service”. 4marks
c. Explain any 3 implementation techniques of file protection. 6marks


For More Quiz Questions click here to download Global Quiz on Google PlayStore


Select NOUN Past Questions & Answers by Faculties

Sciences

National Open University of Nigeria (NOUN) Faculty of Sciences Past Questions and Answers.

Education

National Open University of Nigeria (NOUN) Faculty of Education Past Questions and Answers.

Arts & Social Sciences

National Open University of Nigeria (NOUN) Faculty of Arts and Social Sciences Past Questions and Answers.

Law

National Open University of Nigeria (NOUN) Faculty of Law Past Questions and Answers.

Management Sciences

National Open University of Nigeria (NOUN) Faculty of Management Sciences Past Questions and Answers.

Health Sciences

National Open University of Nigeria (NOUN) Faculty of Health Sciences Past Questions and Answers.

Agriculture Sciences

National Open University of Nigeria (NOUN) Faculty of Agricultural Sciences Past Questions and Answers.

Select Project Topics & Materials by Categories

Accounting

Universities, Polytechnic's and Colleges of Education Accounting Project Topics and Materials.

Biology

Universities, Polytechnic's and Colleges of Education Biology Project Topics and Materials.

Business Education

Universities, Polytechnic's and Colleges of Education Business Education Project Topics and Materials.

Chemistry

Universities, Polytechnic's and Colleges of Education Chemistry Project Topics and Materials.

Computer Science

Universities, Polytechnic's and Colleges of Education Computer Science Project Topics and Materials.

Criminology & Security

Universities, Polytechnic's and Colleges of Education Criminology & Security Project Topics and Materials.

Economics

Universities, Polytechnic's and Colleges of Education Economics Project Topics and Materials.

Education

Universities, Polytechnic's and Colleges of Education Education Project Topics and Materials.

English/Linguistic

Universities, Polytechnic's and Colleges of Education English/Linguistic Project Topics and Materials.

Entrepreneurship

Universities, Polytechnic's and Colleges of Education Entrepreneurship Project Topics and Materials.

Environmental Science

Universities, Polytechnic's and Colleges of Education Environmental Science Project Topics and Materials.

Law

Universities, Polytechnic's and Colleges of Education Law Project Topics and Materials.

Marketing

Universities, Polytechnic's and Colleges of Education Marketing Project Topics and Materials.

Physics

Universities, Polytechnic's and Colleges of Education Physics Project Topics and Materials.

Political Science

Universities, Polytechnic's and Colleges of Education Political Science Project Topics and Materials.

Public Administration

Universities, Polytechnic's and Colleges of Education Public Administration Project Topics and Materials.

How to login to NOUN Elearn Portal

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...

Facebook posts