ACtE08 · Chapter 8Mock Test 05🏛️ Past Licensure QuestionID: ddb68e6c
A digital combinational circuit having 4 data input lines, 2 selection control lines, and 1 single output line is called a:
A digital combinational circuit having 4 data input lines, 2 selection control lines, and 1 single output line is called a:
Multiple Choice Options
- A✓ Correct Option
4 to 1 MUX
- B
1 to 4 DeMux
- C
8 to 1 Mux
- D
1 to 8 DeMux
Detailed Technical Solution & Explanation
A Multiplexer (MUX) is a digital data selector. A 4-to-1 MUX has data inputs ( select lines) and directs one of the four data inputs to a single output line based on the binary combination of the select inputs.
Option Analysis:
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Option A (4 to 1 MUX): Correct. Has 4 data inputs, 2 select lines, and 1 output.
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Option B (1 to 4 DeMux): A demultiplexer taking 1 input and routing it to one of 4 outputs.
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Option C (8 to 1 Mux): Requires 3 select lines ().
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Option D (1 to 8 DeMux): Routes 1 input to 8 outputs using 3 select lines.
Reference: Mock Test 05NEC Licensure Syllabus