CommVault Software Developer Intern Interview Questions and Answers for Freshers

Q1. Copy constructor implementation it was based on
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Q1. Binary search question on array
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Q1. Experience and expectations on salary
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10 core subject MCQs along with 3 coding questions

1 Fizz Buzz questions
2 third largest string in array of strings
3 operation on numbers given by strings

Q1. Almost all Basic concepts retlated to OS ie process, threads, multitasking, multiprogramming
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Q2. Concepts related to AWS
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Q3. Coding questions like 1. second largest element in array 2. stack implementation and its real time uses 3. frequency of characters in string
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Q1. Deep concepts related to CNS , related to your own laptop its processor , cores etc
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Q2. Top View of binary treee
Ans. 
Top view of binary tree is the nodes visible when viewed from the topmost node.
• Top view shows the nodes visible from the root node's perspective.

• Nodes are printed in the order of their horizontal distance from the root node.

• If two nodes have the same horizontal distance, the node that appears first in the level order traversal is printed first.
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Q1. Details about career goals
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Q2. Details about expectations (in terms of role)
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DSA and lagorithmic optimizations (this is based on team you are joining so questions vary a LOT)

Q1. Salary expectation
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Medium level leetcode questions and some apti very rare but.

Q1. Good practice of ds algo and os
Ans. 
Good practice of data structures, algorithms, and operating systems is essential for software engineers.
• Regularly practice coding challenges to improve problem-solving skills

• Understand the time and space complexity of algorithms

• Learn about different data structures and when to use them

• Familiarize yourself with operating system concepts like processes, threads, and memory management
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Q2. Is given tree bst or not?
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Q3. Check whether cycle in linked list.
Ans. 
Check for cycle in a linked list by using two pointers approach.
• Use two pointers, one moving at double the speed of the other.

• If there is a cycle, the two pointers will eventually meet.

• Alternatively, use a hash set to keep track of visited nodes.
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Binary search tree
Linked list

Q1. Project related
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Q2. Technologies used
Ans. 
I have experience with a variety of technologies including Java, Python, SQL, and JavaScript.
• Java

• Python

• SQL

• JavaScript
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100 minutes, there were 3 coding questions and some easy to medium level mcq on core subjects

Q1. Isomorphic string
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Q2. What you'll use to implement a playlist
Ans. 
A playlist can be implemented using an array of strings to store the list of songs.
• Use an array of strings to store the list of songs in the playlist

• Implement functions to add, remove, and shuffle songs in the playlist

• Consider using a linked list data structure for more efficient insertion and deletion operations
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Maths, logical question & some related to programming

One problem statement to write a program.

Q1. Technical question related PHP, SQL, etc.
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Q1. Salary discussion
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It was consisted of cloud, docker related questions and some logical questions. There were 5 coding questions 3 were easy level coding questions and 2 were on sql schema realated quetions.

GD was good HR was too supportive everyone got chance to keep and express their points.

Q1. Oops related questions
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Q2. Sql and some php related questions
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