Btech 1/2 ICT - Unit 18 - Boolean Operations and Logic Gates

If you use an XOR (Exclusive OR) Boolean operation with two inputs, A and B, when will the output be TRUE (1)?

• If both A and B are TRUE.

• If both A and B are FALSE.

• If A is TRUE and B is FALSE, or if A is FALSE and B is TRUE (i.e., when only one input is TRUE).

• If A is TRUE, regardless of B.

What truth values does Boolean algebra primarily use?

• 2 and 3.

• 0 and 1.

• -1 and 1.

• 5 and 10.

Which of the following is a common Boolean operation?

• ADD

• SUBTRACT

• AND

• MULTIPLY

If you have two inputs, A and B, and you use an AND operation, when will the output be TRUE (1)?

• If A is TRUE and B is FALSE.

• If A is FALSE and B is TRUE.

• If both A and B are TRUE.

• If both A and B are FALSE.

What is a 'truth table' used for in Boolean algebra?

• To tell a story.

• To show all possible inputs and the resulting output for a Boolean operation.

• To draw a picture.

• To calculate complex numbers.

A logic gate is a physical representation of what?

• A mathematical equation.

• A Boolean operation.

• A programming language.

• A type of computer memory.

Which Boolean operation gives a TRUE (1) output if either input A is TRUE or input B is TRUE (or both)?

What does the NOT Boolean operation do to an input?

• It leaves the input unchanged.

• It makes the input TRUE.

• It reverses the input; if the input is TRUE, the output is FALSE, and vice versa.

• It combines it with another input.

Where might Boolean operations be used in technology systems?

• Only in simple calculators.

• In the design of circuits and chips.

• For writing emails.

• For making music.

If you have a simple lighting circuit with two switches in parallel, and the lamp lights if either switch is pressed, what kind of logic gate is being demonstrated?

• An AND gate.

• A NOT gate.

• An OR gate.

• An XOR gate.