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WAEC ANSWER 2017 DAILY EXPO - Data Processing

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WAEC 2017 DATA PROCESSING ANSWERS

Friday, 31st March, 2017
Data Processing 2 (Essay) 09.30am – 11.30am
Data Processing 1 (Objective) 11.30am – 12.20am

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

1b)
information and communications technology is an umbrella term that includes any communication device or application, encompassing: radio, television, cellular phones, computer and network hardware and software, satellite systems and so on, as well as the various services and applications

1c)
i)Making learning more interesting for hard-to-understand issues
ii)Bridging distances – e.g using e-mails, phone, video conferencing etc.
iii)Breaking literacy barriers in communication – e.g using video and radio.

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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.

2aii)
+Capacity planning
+Real-Time monitoring
+Documentation management

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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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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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

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5a)
-Cleaning your computer hardware.
-Downloading the latest drivers software.
-Verifying you have the latest anti-virus protection update for your hardware.
-Downloading the latest updates for your computers on your computer.
-Running disk software utilities such as Defrag ales on your computer

5b)
-Adaptive maintenance: This is concerned with the change in the software that takes place to make the software adaptable to new environment such as to run the software on a new operating system.
-Perfective maintenance is concerned with the change in the software that occurs while adding new functionalities in the software.
-Preventive maintenance involves
implementing changes to prevent the
occurrence of errors.
-Corrective maintenance is concerned with fixing errors that are observed when the software is in use

5c)
i) Clean out all the junk behind by browsers.
ii) Search and destroy spyware/viruses on your PC.
iii) Defragment your hard drive monthly to keep your computer running smoothly.
iv) Uninstall programs you no longer use, and delete music you no longer listen to.
v) use your computers disk management systems.

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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

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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1 comment:

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