Digital Logic Quiz: Flip-Flops and Adders

What is the main function of an SR flip-flop?

• To store a single bit of data

• To perform arithmetic operations

• To amplify signals

• To convert analog signals to digital

In an SR flip-flop, what does the 'S' stand for?

• Set

• Save

• Signal

• Start

What is the condition for an invalid state in an SR flip-flop?

Which of the following is true for a JK flip-flop when both J and K inputs are 1?

• The output toggles

• The output is set to 0

• The output is set to 1

• The output remains unchanged

• Set

• Reset

• Toggle

• No change

Which logic gate is used in the design of a half-adder to produce the sum output?

• AND gate

• OR gate

• XOR gate

• NAND gate

What is the carry output of a half-adder when both inputs are 1?

• 0

• 1

• Undefined

• Same as sum

Which of the following components is not part of a half-adder circuit?

• XOR gate

• AND gate

• OR gate

• None of the above

In a full-adder, what is the purpose of the carry-in input?

• To reset the adder

• To provide an initial carry value

• To store the sum

• To toggle the output

How many inputs does a full-adder have?

• 2

• 3

• 4

• 5