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WAEC 2017: 100% Verified Computer Science Questions & Answers
WAEC April 11, 2017 • 4 years ago • No Comment Yet

WELCOME TO EXAMRELIEF WAEC 2017 ANSWERS PAGE!!

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KEEP REFRESHING THIS PAGE FOR THE COMPLETE ANSWERS AS WE ARE TYPING IT


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2017 WEAC (COMPUTER SCIENCE) 100% VERIFIED QUESTIONS

?WAEC 2017 COMPUTER SCIENCE ANSWERS?

100% VERIFIED COMPUTER SCIENCE OBJ ANSWERS


1A 2C 3D 4C 5B 6D 7D 8C 9C 10C
11B 12A 13D 14D 15C 16B 17B 18C 19D 20B
21B 22A 23C 24A 25A 26C 27C 28A 29C 30A
31A 32B 33A 34D 35D 36C 37D 38C 39C 40B
41D 42B 43D 44D 45C 46B 47C 48C 49D 50B

100% VERIFIED COMPUTER SCIENCE THEORY ANSWERS

1a)
Input device are devices by which data, information and instructions into the computer system
1b)
i. keyboard
ii. light pen
1c)
i. Logic gates are digital components that typically work two levels of voltage and determine how a component conducts electricity.
ii. Logic gates use Boolean equations and switch tables.
1di.
CLICK HERE TO VIEW NO. 1Di
A,B
OR —-)—- A+B
1dii.
CLICK HERE TO VIEW NO. 1Dii
and gate
A—- AB
B—- AND
======================
3a)
information is an analyzed or processed data, which is now more meaningful and decisions can be made based on its data and information is connected.
Communication technology is the activity of designing, constructing and maintaining communication systems. In
the modern era it is referred to as ICT. This is information and communications technology, and includes any communication device or application such as radio and television.
(3b)
LAN-local area network
GPS-global postioning Service.
IP-internet protocol
(3b)
LAN-local area network
GPS-global postioning Service.
IP-internet protocol
==========================
(4a)
TABULATE
RAM
– It is the memory available for the operating system, programs and processes to use when the computer is running.
– It requires a flow of electricity to retain data (e.g. the computer powered on).
ROM
– It is the memory that comes with your computer that is pre-written to hold the instructions for booting-up the computer.
– It will retain data without the flow of electricity (e.g. when computer is powered off)
(4a)ii.
* Password-protect
* documents encryption
* Secure wireless transmissions
4b)
i)Searching and Organizing
ii)Ease of Access Center
iii)Default Programs
iv)Remote Desktop Connection
4c)
i)antivirus programs
ii)registry cleaners
==========================
5a)
CLICK HERE TO VIEW NO. 5a
10110112
=1*2^6+0*2^5+1*2^4+1*2^3+0*2^2+1*2^1+1*2^0
=1*64+0*32+1*16+1*8+0*4+1*2+1*1
=64+0+16+8+0+2+1
=91
tabulate
16|91
5 r B
O r 5
10110112=5B16
were B is 11
5b)
HACKER
i) A hack group getting main owner on an XAT chat without authorization.
SCAMMER
ii)Tricking an internet user into giving you his/her login name and password
5c)
i)HTML:Hypertext Markup Language
ii)HTTP: Hypertext Transfer Protocol
iii)ISP: Internet Service Language
iv)SMTP: Simple Mail Transfer Protocol.

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