Waec 2017 Data Processing Answers – May/June Expo

Waec 2017 Data Processing Answers – May/June Expo

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DATA PROCESSING OBJ:
1-10: BCDABBCBAC
11-20: ABBDCBDBDA
21-30: DAACBBACDB
31-40: DDCBAADDBD


: 1a) super computer
ii) mainframe computer
iii)mini computer 
iv)mirco computer

1b. 
Information and communications technology (ICT) refers to all the technology used to handle telecommunications, broadcast media, intelligent building management systems, audiovisual processing and transmission systems, and network-based control and monitoring functions

2a. 
Computer ethics is a part of practical philosophy which concern with how computing professionals should make decisions regarding professional and social conduct.

2aii.
* Capacity planning 
* Real-Time monitoring 
* Documentation management

2b)
I.no food and drink
ii.keep your workstation area neat
iii.surf safety
iv. keep your files organized
v. Don't shut down abruptly

(3a) 
Web programming 
(3b) 
Web programmer 
(3c) 
-VB.NET
-MYSQL

(3di) Intranet

(3dii) 
-It is a cheap medium of communication
-It does not allow for leakage of secret information by hackers 
-It is easy to maintain. It requires less technical knowledge.

(e) 
-Router
-Modem


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4a) 
Software Maintenance in software engineering is the maintenance of a software product after delivery to correct fault, to improve performance or other attributes 

4b) I) Corrective
ii )Perfective 
iii )Adaptive 
iv )preventive 


4c)
I) Correct faults 
ii)Improve performance 
iii)Adapts to a changing environment 
iv)Predictive cash flow


5ai) shift A
ii. Ctrl c 
iii. Ctrl v

ii. We select the present first and copy it from the application. Open the profile in Microsoft word application.

B1. Computer set
ii.network cable 
iii. Router 

Bii I.ms access
ii. My SQL
Iii. IDB

Iii. I. Word pard 
II. Ms word 
III


little changes made in no 6

(6ai) Monitor

(6aii)
i. Monitor
ii. printers

(6aiii)
III. CPU
VI. SOCKET AC SOURCE
VII. PRINTER.

(6iv)
Ensure you use stabilizer when using the computer so that the power source will not be fluctuating.

(6v)
III and II

(6vi)
Modem

6bi)
Fig2. is a DVD diskette
Fig3. Is a magnetic tape diskette

6bii)
The magnetic tape media is most suitable

6biii)
A radio player

6biii)
A radio player

6biv)
Virtual sequential access method

6ci)
300×1000/300=1000

6cii)
By compressing the image sizes
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