Identify the correct concept described as: a function that is both one-to-one and onto, pairing every element uniquely.
Difficulty: Hard
About this MCQ
This Hard Discrete Mathematics MCQ checks one syllabus fact.
The question is: “Identify the correct concept described as: a function that is both one-to-one and onto, pairing every element uniquely.”
The accepted answer is A. Bijective function. “Identify the correct concept described as: a function that is both one-to-one and onto, pairing every element uniquely.” is answered by Bijective function (option A). Option B (“Spanning tree”) does not match the stem; it is a near-miss used to catch incomplete recall of Bijective function. Option C (“Logical connective”) does not match the stem; it is a near-miss used to catch incomplete recall of Bijective function. Remaining alternatives (Tautology) fall outside the same rule and should be eliminated once Bijective function is identified. Discrete Mathematics questions of this type reward precise definitions rather than approximate associations. Discrete Mathematics recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
- A. Bijective function ✓
- B. Spanning tree
Why not B: “Spanning tree” is not correct. The accepted answer is A. Bijective function. “Identify the correct concept described as: a function that is both one-to-one and onto, pairing every element uniquely.” is answered by Bijective function (option A). Option B (“S
- C. Logical connective
Why not C: “Logical connective” is not correct. The accepted answer is A. Bijective function. “Identify the correct concept described as: a function that is both one-to-one and onto, pairing every element uniquely.” is answered by Bijective function (option A). Option B (“S
- D. Tautology
Why not D: “Tautology” is not correct. The accepted answer is A. Bijective function. “Identify the correct concept described as: a function that is both one-to-one and onto, pairing every element uniquely.” is answered by Bijective function (option A). Option B (“S
Correct answer
A. Bijective function
Explanation
“Identify the correct concept described as: a function that is both one-to-one and onto, pairing every element uniquely.” is answered by Bijective function (option A). Option B (“Spanning tree”) does not match the stem; it is a near-miss used to catch incomplete recall of Bijective function. Option C (“Logical connective”) does not match the stem; it is a near-miss used to catch incomplete recall of Bijective function. Remaining alternatives (Tautology) fall outside the same rule and should be eliminated once Bijective function is identified. Discrete Mathematics questions of this type reward precise definitions rather than approximate associations. Discrete Mathematics recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
Source: Discrete Mathematics Official Reference Guide
Tags: computer science, discrete mathematics, mathematics, logic
Submitted by: MCQsHub Editorial
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