Free ALU 101 Functions Questions and Answers

Question 1

What is the primary function of an Arithmetic Logic Unit (ALU) in a CPU?

Accepted Answer

Perform arithmetic and logical operations

Answer

Store data

Answer

Control data flow

Answer

Manage input and output devices

Question 2

In an ALU, how is the addition of binary numbers typically implemented?

Accepted Answer

Using a full-adder

Answer

Using a half-adder

Answer

Using a multiplier

Answer

Using a divider

Question 3

What Boolean function does the ALU perform to check for equality between two binary numbers?

Accepted Answer

XNOR

Answer

XOR

Answer

AND

Answer

OR

Question 4

How does an ALU implement the subtraction of two binary numbers using Boolean algebra?

Accepted Answer

By adding the two’s complement of the second number

Answer

By adding the two numbers directly

Answer

By using a multiplexer

Answer

By using a decoder

Question 5

In ALU design, what Boolean operation is used to clear a specific bit in a register?

Accepted Answer

AND with 0

Answer

AND with 1

Answer

OR with 0

Answer

XOR with 1