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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 UGC CBSE NET 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 UGC CBSE NET 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 UGC CBSE NET 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 27 of 27

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Q261.
Postorder traversal of a given binary search tree T produces following sequence of keys:

3, 5, 7, 9, 4, 17, 16, 20, 18, 15, 14

Which one of the following sequences of keys can be the result of an in-order traversal of the tree T?

a.

3, 4, 5, 7, 9, 14, 20, 18, 17, 16, 15

b.

20, 18, 17, 16, 15, 14, 3, 4, 5, 7, 9

c.

20, 18, 17, 16, 15, 14, 9, 7, 5, 4, 3

d.

3, 4, 5, 7, 9, 14, 15, 16, 17, 18, 20

Discuss
Answer: (d).3, 4, 5, 7, 9, 14, 15, 16, 17, 18, 20
Q262.
The three aspects of Quantization, programmers generally concerned with are:

a.

Coding error, Sampling rate and Amplification

b.

Sampling rate, Coding error and Conditioning

c.

Sampling rate, Aperture time and Coding error

d.

Aperture time, Coding error and Strobing

Discuss
Answer: (c).Sampling rate, Aperture time and Coding error
Q263.
The logic of pumping lemma is an example of ....................

a.

iteration

b.

recursion

c.

the divide and conquer principle

d.

the pigeon - hole principle

Discuss
Answer: (c).the divide and conquer principle
Q264.
Heap allocation is required for languages that :

a.

use dynamic scope rules

b.

support dynamic data structures

c.

support recursion

d.

support recursion and dynamic data structures

Discuss
Answer: (b).support dynamic data structures
Q265.
Consider a full binary tree with n internal nodes, internal path length i, and external path length e. The internal path length of a full binary tree is the sum, taken over all nodes of the tree, of the depth of each node. Similarly, the external path length is the sum, taken over all leaves of the tree, of the depth of each leaf.
Which of the following is correct for the full binary tree?

a.

e = i + n

b.

e = i + 2n

c.

e = 2i + n

d.

e = 2^n + i

Discuss
Answer: (b).e = i + 2n
Q266.
You are given a sequence of n elements to sort. The input sequence consists of n/k subsequences, each containing k elements. The elements in a given subsequence are all smaller than the elements in the succeeding subsequence and larger than the elements in the preceding subsequence. Thus, all that is needed to sort the whole sequence of length n is to sort the k elements in each of the n/k subsequences.
The lower bound on the number of comparisons needed to solve this variant of the sorting problem is:

a.

Ω(n)

b.

Ω(n/k)

c.

Ω(n lg k)

d.

Ω(n/k lg n/k)

Discuss
Answer: (c).Ω(n lg k)
Q267.
Consider the recurrence relation:

T (n) = 8T(n/2) + Cn, if n > 1
= b, if n =1
Where b and c are constants.

The order of the algorithm corresponding to above recurrence relation is:

a.

n

b.

n^2

c.

n lg n

d.

n^3

Discuss
Answer: (d).n^3
Q268.
A data file of 1,00,000 characters contains only the characters g-l, with the frequencies as indicated in table. Using the variable-length code by Huffman codes, the file can be encoded with

a.

2,52,000 bits

b.

2,64,000 bits

c.

2,46,000 bits

d.

2,24,000 bits

Discuss
Answer: (d).2,24,000 bits
Q269.
The prepositional formula given by the tree is:

a.

˄˅x2˅x1¬x1¬x1

b.

(x2˅¬x2)˄(x1˅x2)

c.

(¬x1˅x2)˄(¬x1˅x2)

d.

None of these

Discuss
Answer: (c).(¬x1˅x2)˄(¬x1˅x2)
Page 27 of 27

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