WAEC Computer Science Past Questions & Answers - Page 41

201.

A student mistakenly pressed the F5 key on keyboard while browsing on the internet. This will lead to?

A.

opening of a new tab

B.

closing of the active window

C.

Closing of all windows

D.

reloading of the active window

Correct answer is C

No explanation has been provided for this answer.

202.

Arrange in hierarchical order by date the following inventions:

I. - Census machine; Il. - Abacus; lll. - Slide rule; IV.- Difference engine.

A.

I, lI, IlI and IV

B.

I, IlI, II and IV

C.

I, II, IV and llI

D.

I, IV, IlI and l

Correct answer is A

No explanation has been provided for this answer.

203.

The modifier keys on the computer keyboard comprises of? 

A.

DEL, ESC and ALT keys

B.

CTRL, CAPS LOCK and DEL keys

C.

SHIFT, CTRL and ALT keys

D.

CTRL, ALT and DEL keys

Correct answer is D

No explanation has been provided for this answer.

204.

Converting 4B7\(_hexadecimal\) to binary is?     

A.

010010100111

B.

010010110111

C.

010010000111

D.

010011000111

Correct answer is D

No explanation has been provided for this answer.

205.

The first three steps to open an email account include:

I. - Click on create my account; II. - Go to home page; llI - Click create new account.      

A.

I, ll and lll

B.

II, I and ll

C.

ll, lll and I

D.

I, lll and lI

Correct answer is B

No explanation has been provided for this answer.