What term describes the following? a data structure that allows insertion and removal of elements from both the front and the back.
Difficulty: Medium
About this MCQ
This Medium Data Structures MCQ checks one syllabus fact.
The question is: “What term describes the following? a data structure that allows insertion and removal of elements from both the front and the back.”
The accepted answer is C. Dequeue. Dequeue is the fact required by “What term describes the following? a data structure that allows insertion and removal of elements from both the front and the back.” (option C). Option A (“Adjacency matrix”) does not match the stem; it is a near-miss used to catch incomplete recall of Dequeue. Option B (“Self-referential structure”) does not match the stem; it is a near-miss used to catch incomplete recall of Dequeue. Remaining alternatives (Hash collision) fall outside the same rule and should be eliminated once Dequeue is identified. Data Structures questions of this type reward precise definitions rather than approximate associations. Data Structures recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
- A. Adjacency matrix
Why not A: “Adjacency matrix” is not correct. The accepted answer is C. Dequeue. Dequeue is the fact required by “What term describes the following? a data structure that allows insertion and removal of elements from both the front and the back.” (option C). Op
- B. Self-referential structure
Why not B: “Self-referential structure” is not correct. The accepted answer is C. Dequeue. Dequeue is the fact required by “What term describes the following? a data structure that allows insertion and removal of elements from both the front and the back.” (option C). Op
- C. Dequeue ✓
- D. Hash collision
Why not D: “Hash collision” is not correct. The accepted answer is C. Dequeue. Dequeue is the fact required by “What term describes the following? a data structure that allows insertion and removal of elements from both the front and the back.” (option C). Op
Correct answer
C. Dequeue
Explanation
Dequeue is the fact required by “What term describes the following? a data structure that allows insertion and removal of elements from both the front and the back.” (option C). Option A (“Adjacency matrix”) does not match the stem; it is a near-miss used to catch incomplete recall of Dequeue. Option B (“Self-referential structure”) does not match the stem; it is a near-miss used to catch incomplete recall of Dequeue. Remaining alternatives (Hash collision) fall outside the same rule and should be eliminated once Dequeue is identified. Data Structures questions of this type reward precise definitions rather than approximate associations. Data Structures recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
Source: Data Structures Official Reference Guide
Tags: computer science, data structures, algorithms, programming
Submitted by: MCQsHub Editorial
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