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AS Computer Science Units 3&4 Quiz

Authored by Fran Vertedor

Computers

11th Grade

Used 6+ times

AS Computer Science Units 3&4 Quiz
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which component of the CPU is responsible for performing arithmetic and logical operations?

Control Unit

Arithmetic Logic Unit (ALU)

Cache Memory

Memory Address Register

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the output of a NAND gate when both inputs are 1?

0

Undefined

2

1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the fetch-execute cycle, what happens during the decode stage?

Data is retrieved from memory

Results are stored in registers

The instruction's operation is interpreted

The PC is incremented

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of memory is volatile and needs constant power to maintain data?

ROM

Hard Drive

RAM

EPROM

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the Program Counter (PC) in CPU architecture?

Count the number of programs running

Store intermediate calculation results

Hold the address of the next instruction

Track program execution time

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In assembly language, what does the LDR instruction typically do?

Store data to memory

Load data from memory

Compare two values

Jump to a new address

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which logic gate produces an output of 1 only when exactly one input is 1?

XOR

NOR

AND

NAND

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