Digital Circuits Quiz

What is the main function of a flip-flop in digital circuits?

• Storing a single bit of data

• Performing arithmetic operations

• Controlling data flow

• Generating random numbers

Which flip-flop is commonly used in counters due to its toggle functionality?

• D Flip-Flop

• JK Flip-Flop

• SR Flip-Flop

• T Flip-Flop

Which of the following flip-flops can change state on every clock cycle?

• D Flip-Flop

• JK Flip-Flop

• SR Flip-Flop

• Master-Slave Flip-Flop

What is the primary characteristic of synchronous sequential circuits?

• They do not use a clock signal

• State changes occur only on clock edges

• They use latches instead of flip-flops

• They are always asynchronous

In a clocked synchronous sequential circuit, what determines the next state?

• Current state and input

• Clock frequency

• Input only

• Output only

What is the primary difference between a Mealy machine and a Moore machine?

• Mealy outputs depend on the current state and input, while Moore outputs depend only on the state

• Moore outputs depend on the current state and input, while Mealy outputs depend only on the state

• Mealy machines are always slower than Moore machines

• Moore machines cannot handle asynchronous inputs

Which technique is used to reduce the number of states in an FSM?

• State assignment

• State minimization

• Clock gating

• Bit slicing

Which of the following is an example of a synchronous counter?

• Ripple Counter

• Ring Counter

• Johnson Counter

• Asynchronous Counter

What is state assignment in the context of FSM design?

• Assigning binary codes to states

• Reducing the number of states

• Determining the output logic

• Managing clock signals

Which application commonly uses finite state machines?

• Digital watches

• Data encryption

• Audio amplifiers

• Voltage regulators