NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid

2015 WAEC Data Processing Theory (a) Define the following (i) Database (ii) Database management system (b) Mention three functions of...

Data Processing
WAEC 2015

(a) Define the following

(i) Database

(ii) Database management system

(b) Mention three functions of a database management system.

(c) Mention two ways through which data can be destroyed.

(d) State three precautionary measure to prevent data loss. 

Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Explanation

2 (a) Define;

   (i) Database; is a collection of information that is organized so that it can be easily accessed, managed and updated.

  (ii) Data management system; simply refers to the collection of program that assist the user to input, organize, select, manipulate, store and extract data in a database.     OR  It is a computer program/software application that interacts with the user, other applications that interact with the user, other applications and database itself to       capture and analyze data.  

(b) Functions of Database;

(I) Data Definition; Database management system helps to modify the structure of the existing data, removes data structure from database as well as defining new data structure for a database.

(II) Update; Database management system helps in inserting, modifying and deleting data.

(III) Retrieval; It helps to obtain information for end-user queries and reports by applications.

(IV) Data administration; Database management system helps in registering and monitoring users, maintaining data security, recovering information if the system fails, dealing with concurring control as well as enforcing data security monitoring performance. 

Database also performs the following functions; (i) Organise your file to give you more control over your data. (ii) Creates data that assist the user (iii) Enables the user to edit his/her data (iv) Update data (v) Retrieve data 

(c) Ways through which data can be destroyed : (i) by erasing (ii) shredding (iii) by  overwriting data (iv) by deleting/formatting

(d) Precautionary measures to prevent data loss;

(i) By creating back-up files

(ii)Updating anti-virus often

(iii) Checking those who may have access to the system, through the use of password and access code.

(iv) Ensuring that access to the computers are fully monitored. 

 


Report an Error Ask A Question Download App
Join your school's WhatsApp group
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Contributions ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}

Quick Questions

Post your Contribution

Please don't post or ask to join a "Group" or "Whatsapp Group" as a comment. It will be deleted. To join or start a group, please click here

{{ quote.posted_by.display_name }}
{{ settings.form_textarea_description }}
 
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid