Data Structures 300 Unique MCQs

Priority Queue is commonly used for event simulation and shortest-path algorithms.
Its design supports this task efficiently or naturally.

The defining property is that the highest- or lowest-priority item is served first.
The other statements describe different structures or concepts.

Priority Queue fits because it supports event simulation and shortest-path algorithms and the highest- or lowest-priority item is served first.
Both clues point to this choice.

Circular Queue fits because it supports fixed-size buffering and the rear index can wrap to the beginning of the array.
Both clues point to this choice.

Deque is a double-ended queue supporting insertion and deletion at both ends.
This description distinguishes it from the other choices.

Queue is commonly used for task scheduling and buffering.
Its design supports this task efficiently or naturally.

The defining property is that insertion occurs at the rear and removal at the front.
The other statements describe different structures or concepts.

Queue fits because it supports task scheduling and buffering and insertion occurs at the rear and removal at the front.
Both clues point to this choice.

Circular Queue is a queue that reuses freed positions by wrapping indices.
This description distinguishes it from the other choices.

Circular Queue is commonly used for fixed-size buffering.
Its design supports this task efficiently or naturally.

The defining property is that the rear index can wrap to the beginning of the array.
The other statements describe different structures or concepts.

The defining property is that traversal can continue cyclically without reaching a null link.
The other statements describe different structures or concepts.