Moore and Mealy machines MCQs

What is a Moore machine?

a) A finite state machine where outputs depend only on the current state.
b) A finite state machine where outputs depend on both the current state and the input.
c) A type of Turing machine.
d) A type of pushdown automaton.
Answer: a) A finite state machine where outputs depend only on the current state.
What is a Mealy machine?

a) A finite state machine where outputs depend only on the current state.
b) A finite state machine where outputs depend on both the current state and the input.
c) A type of Turing machine.
d) A type of pushdown automaton.
Answer: b) A finite state machine where outputs depend on both the current state and the input.
In a Moore machine, when is the output generated?

a) On state transitions.
b) On entering a state.
c) On exiting a state.
d) On receiving input.
Answer: b) On entering a state.
In a Mealy machine, when is the output generated?

a) On state transitions.
b) On entering a state.
c) On exiting a state.
d) Independently of state transitions.
Answer: a) On state transitions.
Which machine typically has fewer states for the same functionality, Moore or Mealy?

a) Moore
b) Mealy
Answer: b) Mealy
Which machine has its output associated with the transitions?

a) Moore
b) Mealy
Answer: b) Mealy
Which of the following is true about the outputs of a Moore machine?

a) They can change only at state transitions.
b) They can change on each input.
c) They are independent of the state.
d) They depend on both the state and input.
Answer: a) They can change only at state transitions.
Which machine model is typically easier to design and debug due to its output structure?

a) Moore
b) Mealy
Answer: a) Moore
In which machine can the output change without a state transition?

a) Moore
b) Mealy
Answer: b) Mealy
For which machine type is the output function
𝑍
=
𝑓
(
𝑄
)
Z=f(Q), where
𝑄
Q is the state?

a) Moore
b) Mealy
Answer: a) Moore
For which machine type is the output function
𝑍
=
𝑓
(
𝑄
,
𝑋
)
Z=f(Q,X), where
𝑄
Q is the state and
𝑋
X is the input?

a) Moore
b) Mealy
Answer: b) Mealy
In terms of real-time response, which machine is typically faster?

a) Moore
b) Mealy
Answer: b) Mealy
Which machine has an output that is a function of the current state and the current input?

a) Moore
b) Mealy
Answer: b) Mealy
Which machine type generally has a simpler state diagram?

a) Moore
b) Mealy
Answer: a) Moore
In which machine are the outputs labeled on the states themselves?

a) Moore
b) Mealy
Answer: a) Moore
Which machine can provide immediate output changes in response to inputs?

a) Moore
b) Mealy
Answer: b) Mealy
Which machine’s state diagram can be more complex due to the need to include input on transitions?

a) Moore
b) Mealy
Answer: b) Mealy
In which machine does the output tend to be more stable, not changing as frequently?

a) Moore
b) Mealy
Answer: a) Moore
Which machine type might require more states to achieve the same function due to its output structure?

a) Moore
b) Mealy
Answer: a) Moore
Which of the following applications can use Moore machines?

a) Traffic light control systems
b) Real-time data processing where immediate response to input is critical
c) Synchronous counters
d) Communication protocol design
Answer: a) Traffic light control systems

MCQs of Digital Logic Design (DLD)

Introduction to Digital Systems

1. Analog vs. Digital signals MCQs
2. Binary numbers and arithmetic MCQs
3. Logic levels and noise margins MCQs

Boolean Algebra

1. Basic logic operations (AND, OR, NOT) MCQ
2. Laws and theorems of Boolean algebra MCQ
3. De Morgan’s Theorems MCQ
4. Canonical forms (Sum of Products, Product of Sums) MCQ
5. Simplification techniques (Karnaugh Maps, Quine-McCluskey method) MCQ

Combinational Logic

Logic Gates

1. Basic gates (AND, OR, NOT) Gat MCQ
2. Universal gates (NAND, NOR) Gat MCQs
3. XOR and XNOR gates MCQ

Combinational Circuits

1. Design and analysis of combinational circuits MCQ
2. Multiplexers and Demultiplexers MCQ
3. Encoders and Decoders MCQ
4. Binary Adders (Half adder, Full adder) MCQ
5. Subtractors and Arithmetic Logic Units (ALU) MCQ
6. Comparators MCQ in DLD

Sequential Logic

Flip-Flops and Latches

1. SR Latch, D Latch MCQ
2. Flip-Flops (SR, D, JK, T) MCQ
3. Characteristic equations and excitation tables MCQ
4. Edge-triggered vs. level-triggered devices MCQ

Counters and Registers

1. Synchronous, Asynchronous (ripple), Up/Down counters MCQs
2. Shift registers (SIPO, PISO, SISO, PIPO) MCQs

State Machines

Finite State Machines (FSMs)

1. Moore and Mealy machines MCQs

Memory and Programmable Logic MCQs

Memory Devices

1. Read-Only Memory (ROM)
2. Random Access Memory (RAM)
3. Programmable Logic Devices (PLDs) MCQs
4. Field Programmable Gate Arrays (FPGAs) MCQs

More MCQs of Digital Logic Design (DLD)

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  • 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

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