Identify the correct concept described as: a one-way function that converts data into a fixed-size string, commonly used to verify integrity.
Difficulty: Medium
About this MCQ
This Medium Cyber Security MCQ checks one syllabus fact.
The question is: “Identify the correct concept described as: a one-way function that converts data into a fixed-size string, commonly used to verify integrity.”
The accepted answer is D. Hashing. “Identify the correct concept described as: a one-way function that converts data into a fixed-size string, commonly used to verify integrity.” is answered by Hashing (option D). Option A (“Antivirus software”) does not match the stem; it is a near-miss used to catch incomplete recall of Hashing. Option B (“SQL injection”) does not match the stem; it is a near-miss used to catch incomplete recall of Hashing. Remaining alternatives (Denial-of-Service (DoS) attack) fall outside the same rule and should be eliminated once Hashing is identified. Cyber Security questions of this type reward precise definitions rather than approximate associations. Cyber Security recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
- A. Antivirus software
Why not A: “Antivirus software” is not correct. The accepted answer is D. Hashing. “Identify the correct concept described as: a one-way function that converts data into a fixed-size string, commonly used to verify integrity.” is answered by Hashing (option D). O
- B. SQL injection
Why not B: “SQL injection” is not correct. The accepted answer is D. Hashing. “Identify the correct concept described as: a one-way function that converts data into a fixed-size string, commonly used to verify integrity.” is answered by Hashing (option D). O
- C. Denial-of-Service (DoS) attack
Why not C: “Denial-of-Service (DoS) attack” is not correct. The accepted answer is D. Hashing. “Identify the correct concept described as: a one-way function that converts data into a fixed-size string, commonly used to verify integrity.” is answered by Hashing (option D). O
- D. Hashing ✓
Correct answer
D. Hashing
Explanation
“Identify the correct concept described as: a one-way function that converts data into a fixed-size string, commonly used to verify integrity.” is answered by Hashing (option D). Option A (“Antivirus software”) does not match the stem; it is a near-miss used to catch incomplete recall of Hashing. Option B (“SQL injection”) does not match the stem; it is a near-miss used to catch incomplete recall of Hashing. Remaining alternatives (Denial-of-Service (DoS) attack) fall outside the same rule and should be eliminated once Hashing is identified. Cyber Security questions of this type reward precise definitions rather than approximate associations. Cyber Security recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
Source: Cyber Security Official Reference Guide
Tags: computer science, cyber security, information security, network security
Submitted by: MCQsHub Editorial
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