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Paper - II (vi) — Data structures and Algorithms MCQ — 57 Practice Questions with Answers

Paper - II (vi) — Data structures and Algorithms is a Data Structures & Organization (Basic CI) topic in the RAS/RPSC syllabus. This page gathers exam-style Paper - II (vi) — Data structures and Algorithms multiple-choice questions with correct answers and explanations, so aspirants can test recall and revise frequently examined concepts.

Practice 57 Paper - II (vi) — Data structures and Algorithms multiple-choice questions with detailed answers and explanations. Ideal for RAS/RPSC exam preparation.

57 Questions Data Structures & Organization (Basic CI)

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Practice Questions

Q1. Which advantage is normally associated with an array over a singly linked list?

A Direct access to the i-th element using its index is efficient. Correct
B Insertion at the beginning is always done without moving or changing any links.
C It can grow indefinitely without reallocation when capacity is full.
D Memory for every element is allocated only when that individual element is inserted.

Explanation

Arrays support efficient random access because the location of element i follows from the base address and element size. A singly linked list must traverse nodes sequentially to reach the same position.

Q2. For representing a sparse graph, which representation is usually more space-efficient than an adjacency matrix?

A Adjacency list Correct
B Two-dimensional array with one cell for every possible pair of vertices
C Complete binary tree representation
D Single integer counter for number of vertices only

Explanation

A sparse graph has relatively few edges compared with the number of possible vertex pairs. An adjacency list records only existing neighbour relationships, whereas an adjacency matrix allocates a cell for every possible pair.

Q3. Which condition must hold in a binary search tree for every node?

A All leaf nodes must be stored in a separate array.
B All keys in the left subtree are smaller and all keys in the right subtree are larger than the node key. Correct
C Every internal node must have exactly two children.
D The root key must always be the smallest key in the tree.

Explanation

The binary search tree property orders keys around each node: smaller keys go to the left subtree and larger keys go to the right subtree. This ordering allows search to choose one branch at each comparison.

Q4. In C, why can an array element a[i] be accessed in constant time when the base address and element size are known?

A Because arrays store every element in a separate randomly chosen block.
B Because every array element stores the address of the next element.
C Because the address is computed directly as base address plus index multiplied by element size. Correct
D Because the array is always sorted before access.

Explanation

An array occupies contiguous memory locations for elements of the same size. Therefore the address of a[i] can be computed using the base address and an offset, without scanning earlier elements.

Q5. Which statement best describes an Abstract Data Type (ADT) in data structures?

A It specifies data values and operations without fixing a particular implementation. Correct
B It is a sorting method used only for numeric arrays.
C It is always a C structure declared with the keyword struct.
D It stores values only in contiguous memory locations.

Explanation

An ADT focuses on what operations are available and what they mean, such as push and pop for a stack. It deliberately separates the logical interface from implementation choices like arrays, linked lists, C structs, or C++ classes.

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Frequently Asked Questions

How many Paper - II (vi) — Data structures and Algorithms MCQ questions are available?
There are 57 Paper - II (vi) — Data structures and Algorithms practice MCQs available on Aspirant Academy, with detailed answers and explanations for each question.
Are answers and explanations provided for Paper - II (vi) — Data structures and Algorithms MCQs?
Yes, every Paper - II (vi) — Data structures and Algorithms question comes with the correct answer and a detailed explanation to help you understand the underlying concept.
How is Paper - II (vi) — Data structures and Algorithms relevant to the RAS/RPSC exam?
Paper - II (vi) — Data structures and Algorithms falls under the Data Structures & Organization (Basic CI) section of the RAS/RPSC syllabus. It is a frequently tested area and regular practice with these MCQs will strengthen your preparation.
Can I practice Paper - II (vi) — Data structures and Algorithms questions in Hindi?
Yes, Aspirant Academy offers bilingual support. You can practice Paper - II (vi) — Data structures and Algorithms MCQs in both English and Hindi, including questions, options, and explanations.

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