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Welcome to the Data Structures and Algorithms MCQs Page

Dive deep into the fascinating world of Data Structures and Algorithms with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Data Structures and Algorithms, a crucial aspect of GATE CSE Exam. In this section, you will encounter a diverse range of MCQs that cover various aspects of Data Structures and Algorithms, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within GATE CSE Exam.

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Check out the MCQs below to embark on an enriching journey through Data Structures and Algorithms. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of GATE CSE Exam.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Data Structures and Algorithms. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Structures and Algorithms MCQs | Page 22 of 30

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Q211.
What is the minimal number of edges which must be removed from a complete bi partite graph of 6 nodes k(6) so that the remaining graph is planer?

a.

2

b.

3

c.

5

d.

6

Discuss
Answer: (b).3
Q212.
A strictly binary tree with n leave always contain nodes?

a.

2n

b.

2n+1

c.

2n-1

d.

n²

Discuss
Answer: (c).2n-1
Q213.
The following sequence of the operations is performed on a stack PUSH(10), PUSH(20), POP, PUSH(10), PUSH(20), POP, POP, POP, PUSH(20), POP the sequence of values popped out is

a.

20, 10, 20, 10, 20

b.

20, 20, 10, 10, 20

c.

10, 20, 20, 10, 20

d.

20, 20, 10, 20, 10

Discuss
Answer: (b).20, 20, 10, 10, 20
Q214.
The time complexity of comparison based sorting algorithm is

a.

O(n log n)

b.

O(log n)

c.

O(n²)

d.

O(n)

Discuss
Answer: (c).O(n²)
Q215.
Adjacency matrix for a digraph is

a.

Unit matrix

b.

Symmetric matrix

c.

Asymmetric matrix

d.

None of these

Discuss
Answer: (c).Asymmetric matrix
Q216.
The time required to insert an element in a stack with linked list implementation is

a.

O(1)

b.

O(log₂ⁿ)

c.

O(n)

d.

O(n log₂ⁿ)

Discuss
Answer: (a).O(1)
Q217.
The time required to search an element in a binary search tree having n element is

a.

O(i)

b.

O(log₂ⁿ)

c.

O(n)

d.

O(n log₂ⁿ)

Discuss
Answer: (b).O(log₂ⁿ)
Q218.
Merge sort uses

a.

Divide and conquer strategy

b.

Back tracking approach

c.

Heuristic search

d.

Greedy approach

Discuss
Answer: (a).Divide and conquer strategy
Q219.
For merging two sorted lists of sizes m and n to a sorted list of size m+n, we require Comparisons of

a.

O(m)

b.

O(n)

c.

O(m+n)

d.

O(log m+ log n)

Discuss
Answer: (c).O(m+n)
Q220.
The search concept used in associative memory is

a.

Parallel search

b.

Sequential search

c.

Binary search

d.

Reflection search

Discuss
Answer: (a).Parallel search
Page 22 of 30

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