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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 23 of 30

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Q221.
Suppose we want to arrange the n numbers stored in an array such that all negative value before all positive ones, minimum number of exchanges required in the worst case

a.

n-1

b.

n

c.

n+1

d.

n(n+1)/2

Discuss
Answer: (d).n(n+1)/2
Q222.
The average time required to perform a successful sequential search for an element in an array A(1:n) is given by

a.

logₙ²

b.

n²

c.

(n+1)/2

d.

None of these

Discuss
Answer: (c).(n+1)/2
Q223.
How many comparisons are needed to sort an array of length 5 if a straight selection sort is used and array is already in opposite order?

a.

15

b.

20

c.

10

d.

1

Discuss
Answer: (b).20
Q224.
Using the standard algorithm, what is the time required to determine that a number n is prime?

a.

Constant time

b.

Quadratic time

c.

Logarithmic time

d.

Linear time

Discuss
Answer: (d).Linear time
Q225.
If B is a circuit matrix of a graph with k components, e edges and n vertices, the rank of B is

a.

n- k

b.

e-n-k

c.

e-n+k

d.

e+n-k

Discuss
Answer: (c).e-n+k
Q226.
In a complete binary tree of n nodes, how far all the most distant two nodes? Assume each in the path counts as 1. Assume log (n) is log base 2.

a.

about log(n)

b.

about 2 log(n)

c.

about 3lon(n)

d.

about 4log(n)

Discuss
Answer: (b).about 2 log(n)
Q227.
The number of nodes in a full binary till of depth 4 is

a.

14

b.

13

c.

16

d.

15

Discuss
Answer: (d).15
Q228.
The ...................sort algorithms works by comparing adjacent array that are out of order.

a.

Alphabetic

b.

Bubble

c.

Compare

d.

list

Discuss
Answer: (b).Bubble
Q229.
Which of the following is the average number of key comparison done by sequential in the Successful case?

a.

(n+1)/2

b.

n/2

c.

(n+1)

d.

2n

Discuss
Answer: (a).(n+1)/2
Q230.
Which of the following is not good for linked list?

a.

Sorting

b.

Quires

c.

Binary

d.

None of these

Discuss
Answer: (c).Binary
Page 23 of 30

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