1. Which gate shows a '0' output when its input is '1'? A. NOT gate B. XNOR gate C. AND gate D. XOR gate 2. Which among the following is a universal gate? A. AND gate B. NAND gate C. OR gate D. NOT gate 3. The IC 74138 is a: A. 8:1 Multiplexer B. 4:1 Multiplexer C. 4-bit Full Adder D. 3-8-line Decoder

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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just write the mcq ans only

1. Which gate shows a 'O' output when its input is '1'?
A. NOT gate
B. XNOR gate
C. AND gate
D. XOR gate
2. Which among the following is a universal gate?
A. AND gate
B. NAND gate
C. OR gate
D. NOT gate
3. The IC 74138 is a:
A. 8:1 Multiplexer
B. 4:1 Multiplexer
C. 4-bit Full Adder
D. 3-8-line Decoder
Transcribed Image Text:1. Which gate shows a 'O' output when its input is '1'? A. NOT gate B. XNOR gate C. AND gate D. XOR gate 2. Which among the following is a universal gate? A. AND gate B. NAND gate C. OR gate D. NOT gate 3. The IC 74138 is a: A. 8:1 Multiplexer B. 4:1 Multiplexer C. 4-bit Full Adder D. 3-8-line Decoder
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