COMPUTER ORGANIZATION AND DESIGN UNIT 2 MCQs

1. What is a combinational circuit?

a) A circuit whose output depends only on the current input b) A circuit with memory elements c) A circuit with feedback loops d) A circuit with sequential logic

2. Which of the following is a basic logic gate?

a) AND b) OR c) NOT d) All of the above

3. What is the output of a NAND gate if both inputs are 1?

a) 0 b) 1 c) Undefined d) Depends on the gate

4. What is the output of a NOR gate if both inputs are 0?

a) 0 b) 1 c) Undefined d) Depends on the gate

5. What is the output of an XOR gate if both inputs are the same?

a) 0 b) 1 c) Undefined d) Depends on the gate

6. What is a TRI-State buffer?

a) A buffer with three output states: 0, 1, and high-impedance b) A buffer with three inputs c) A buffer with three outputs d) A buffer with three power states

7. Which of the following is a universal gate?

a) NAND b) NOR c) Both a and b d) XOR

8. What is the purpose of Boolean algebra in digital logic?

a) To simplify and analyze logic circuits b) To design memory elements c) To increase circuit speed d) To reduce power consumption

9. What is the functional specification of a circuit?

a) A description of what the circuit does b) A description of the circuit's physical layout c) A description of the circuit's timing d) A description of the circuit's power consumption

10. What is the structural specification of a circuit?

a) A description of the circuit's components and their interconnections b) A description of what the circuit does c) A description of the circuit's timing d) A description of the circuit's power consumption

11. Which of the following is a property of Boolean algebra?

a) Commutative Law b) Associative Law c) Distributive Law d) All of the above

12. What is the output of a NAND gate if one input is 0 and the other is 1?

a) 0 b) 1 c) Undefined d) Depends on the gate

13. What is the output of a NOR gate if one input is 0 and the other is 1?

a) 0 b) 1 c) Undefined d) Depends on the gate

14. What is the output of an XOR gate if one input is 0 and the other is 1?

a) 0 b) 1 c) Undefined d) Depends on the gate

15. What is the purpose of a TRI-State buffer in digital circuits?

a) To allow multiple devices to share a common bus b) To increase circuit speed c) To reduce power consumption d) To simplify circuit design

Digital Logic MCQs

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