# Synchronous, Asynchronous (ripple), Up/Down counters MCQs

What is a characteristic feature of synchronous counters?

A) They have asynchronous clock inputs.

B) They use flip-flops with feedback connections.

C) They change their states simultaneously in response to a clock signal.

D) They have variable count modes.

Answer: C

Which type of counter is known for its simultaneous state changes?

A) Synchronous counter

B) Asynchronous (ripple) counter

C) Up/down counter

D) Johnson counter

Answer: A

What is the primary disadvantage of asynchronous (ripple) counters?

A) They are slower than synchronous counters.

B) They require more flip-flops.

C) They are more complex in design.

D) They cannot count in both directions.

Answer: A

Which counter type has a delay between state changes due to cascading flip-flops?

A) Synchronous counter

B) Asynchronous (ripple) counter

C) Up/down counter

D) Johnson counter

Answer: B

Which counter type is known for its simplicity in design?

A) Synchronous counter

B) Asynchronous (ripple) counter

C) Up/down counter

D) Johnson counter

Answer: B

What is the primary advantage of synchronous counters over asynchronous counters?

A) Faster operation

B) Simplicity in design

C) Ability to count in both directions

D) Lower power consumption

Answer: A

Which counter type is commonly used in applications requiring precise timing?

A) Synchronous counter

B) Asynchronous (ripple) counter

C) Up/down counter

D) Johnson counter

Answer: A

What is the defining characteristic of an up/down counter?

A) It can count only in the upward direction.

B) It can count only in the downward direction.

C) It can count in both upward and downward directions.

D) It can count in a random sequence.

Answer: C

Which counter type is suitable for applications requiring bidirectional counting?

A) Synchronous counter

B) Asynchronous (ripple) counter

C) Up/down counter

D) Johnson counter

Answer: C

What is the advantage of a Johnson counter over other counter types?

A) Bidirectional counting

B) Simplicity in design

C) Fast operation

D) Continuous counting

Answer: A

How many states does a 4-bit synchronous binary counter have?

A) 4

B) 8

C) 16

D) 32

Answer: B

How many flip-flops are required for an 8-bit synchronous binary counter?

A) 4

B) 8

C) 16

D) 32

Answer: B

What is the maximum count of a 3-bit asynchronous (ripple) binary counter?

A) 3

B) 7

C) 8

D) 15

Answer: D

What is the maximum count of a 4-bit up/down binary counter?

A) 4

B) 8

C) 15

D) 16

Answer: D

Which counter type is most suitable for applications requiring presetting of counts?

A) Synchronous counter

B) Asynchronous (ripple) counter

C) Up/down counter

D) Johnson counter

Answer: A

What is the main advantage of an asynchronous (ripple) counter in terms of count modes?

A) It can count in both directions.

B) It can count in a random sequence.

C) It can have variable count modes.

D) It can count at a faster rate.

Answer: C

In an 8-bit up/down counter, how many distinct count states are possible?

A) 8

B) 16

C) 32

D) 256

Answer: D

Which counter type is commonly used for frequency division applications?

A) Synchronous counter

B) Asynchronous (ripple) counter

C) Up/down counter

D) Johnson counter

Answer: A

## MCQs of Digital Logic Design (DLD)

**Introduction to Digital Systems**

- Analog vs. Digital signals MCQs
- Binary numbers and arithmetic MCQs
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**Boolean Algebra**

- Basic logic operations (AND, OR, NOT) MCQ
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- SR Latch, D Latch MCQ
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**Counters and Registers**

- Synchronous, Asynchronous (ripple), Up/Down counters MCQs
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**State Machines**

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## More MCQs of Digital Logic Design (DLD)

- SET 1: DLD MCQs with answers (dld mcqs with answers)
- SET 2: DLD MCQs (dld basic mcqs)
- SET 3: DLD MCQs (solved mcqs of dld)
- SET 4: DLD MCQs (dld repeated mcqs)
- SET 5: DLD MCQs (dld important mcqs)
- SET 6:DLD MCQs DLD Solved MCQs Answers PDF

MCQs collection of solved and repeated MCQs with answers for the preparation of competitive exams, admission test and job of PPSC, FPSC, UPSC, AP, APPSC, APSC, BPSC, PSC, GOA, GPSC, HPSC, HP, JKPSC, JPSC, KPSC, KERALAPSC, MPPSC, MPSC, MPSCMANIPUR, MPSC, NPSC, OPSC, RPSC, SPSCSKM, TNPSC, TSPSC, TPSC, UPPSC, UKPSC, SPSC, KPPSC, BPSC, AJKPSC ALPSC, NPSC, LPSC, SCPSC, DPSC, DCPSC, PSC, UPSC, WVPSC, PSCW, and WPSC.