WAEC Computer Science Past Questions & Answers - Page 19

92.

Which of the following memory types are nonvolatile?

I. PROM II. SRAM II. EEPROM IV. DRAM

A.

I and lll only

B.

I and IV only

C.

Il and ll only

D.

IIl and IV only

Correct answer is A

No explanation has been provided for this answer.

93.

A data bus that is capable of transferring 8 bytes of data at once can be rated as? 

A.

a 16-bit data bus

B.

a 32-bit data bus

C.

a 64-bit data bus

D.

an 8- bit data bus

Correct answer is C

No explanation has been provided for this answer.

94.

In Figure 1, the value of Z when X = 1 and Y=0 is? 

A.

0

B.

1

C.

10

D.

11

Correct answer is B

No explanation has been provided for this answer.

95.

which of the following logic operations would select a record when at least one condition is satisfied?

A.

AND

B.

NOR

C.

NOT

D.

OR

Correct answer is C

No explanation has been provided for this answer.