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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
Consider the following statements.
(A). Combinational logic circuits do not have memory, while sequential logic circuits have memory elements.
(B). Sequential logic circuits depend only on the current inputs,while combinational logic circuits depend on both
current and past inputs.
(C). Flip-flops and latches are examples of combinational logic circuits.
(D). Multiplexer is an example of combinational logic circuit.
Choose the correct statement/statements from the options given below:
1. (A) and (D) only
2. (A), (B) and (D) only
3. (A), (B), (C) and (D)
4. (B), (C) and (D) only
Solution
Solution
(A). ✅ Correct. Combinational logic circuits do not have memory. Sequential circuits include memory elements.
(B). ❌ Incorrect. Sequential circuits depend on both current and past inputs (via memory), while combinational circuits depend only on current inputs.
(C). ❌ Incorrect. Flip-flops and latches are examples of sequential circuits, not combinational circuits.
(D). ✅ Correct. Multiplexer (MUX) is a combinational logic circuit.
Correct Statements: (A) and (D)
Answer: Option 1
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