Waec 2017 Data Processing Answers – May/June Expo

h *DATA PROCESSING OBJ:*

*1-10: BCDABBCBAC*

*11-20: ABBDCBDBDA*

*21-30: DAACBBACDB*

*31-40: DDCBAADDBD*

3a) 
Web programming 
3b) 
Web programmer 
3c) 
-VB.NET
-MYSQL
3di) Intranet
3dii) 
-It is a cheap medium of communication
-It does not give room for leakage of secret information by hackers 
-It is easy to maintain. It requires less technical knowledge.
3e) 
-Router
-Modem
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1a) 
i) super computer
ii) mainframe computer
iii)mini computer 
iv) mirco computer
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2a)
Computer ethics is a part of practical philosophy which concern with how computing professionals should make decisions regarding professional and social conduct.

2b)
i)Pupils are prohibited to enter the lab unless authorised by the teacher.
ii)Scan diskettes before using them.
iii)Report all problems related to the system to the teacher.
iv)Do not attempt to repair or tamper with lab equipment.
v)Be responsible when using equipment, software and facilities in the lab.
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(4a)
Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes.

(4b)
-Corrective
-Perfective
-Adaptive
-Preventive

(4c)
-Corrects fault
-Improves performance
-Adapts to a changing environment
-Predictive cash flow

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) 
II and III

6vi) 
Internet Modem

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