Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following is a disadvantage of quickselect?

A. Poor space complexity
B. Poor best case time complexity
C. Poor average case time complexity
D. Poor worst case time complexity
Answer» E.
Discussion
2.

What is the average case time complexity of quickselect?

A. O(n log n)
B. O(n<sup>2</sup>)
C. O(n)
D. O(log n)
Answer» D. O(log n)
Discussion
3.

What is the worst case time complexity of quickselect?

A. O(n log n)
B. O(n<sup>2</sup>)
C. O(n)
D. O(log n)
Answer» C. O(n)
Discussion
4.

Quickselect s algorithm is similar to which of the following algorithm?

A. Merge sort
B. Quicksort
C. Selection sort
D. Counting sort
Answer» C. Selection sort
Discussion
5.

What is the best case time complexity of quickselect?

A. O(n log n)
B. O(n<sup>2</sup>)
C. O(n)
D. O(log n)
Answer» D. O(log n)
Discussion
6.

Quickselect is an in-place algorithm?

A. true
B. false
Answer» B. false
Discussion
7.

What is the auxiliary space requirement of the quickselect algorithm?

A. O(n<sup>2</sup>)
B. O(n)
C. O(n log n)
D. O(1)
Answer» E.
Discussion
8.

What will be the output if quickselect algorithm is applied to the array arr={1,5,4,3,7} with k given as 4?

A. 1
B. 3
C. 4
D. 5
Answer» E.
Discussion
9.

Quickselect is an example of ___________

A. sorting algorithm
B. selection algorithm
C. greedy algorithm
D. searching algorithm
Answer» C. greedy algorithm
Discussion
10.

Which of the following is an alternative name of the quickselect algorithm?

A. quick sort
B. hoare s selection algorithm
C. tony s selection algorithm
D. kruskal s algorithm
Answer» C. tony s selection algorithm
Discussion
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