Cohesity Engineering Intern Interview Questions and Answers

2 medium leetcode questions were asked

Q1. Difference between polymorphism and inheritance
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Q2. Dsa question related to array
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Q1. Explain about project
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Q2. What did you do in you internship
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45 minutes
arrays, strings,
SHL

Q1. Find number of nodes in a tree and it's time complexity
Ans. 
To find number of nodes in a tree, perform a depth-first or breadth-first traversal and count the nodes. Time complexity is O(n).
• Perform a depth-first or breadth-first traversal of the tree

• Count the nodes as you traverse the tree

• Time complexity is O(n) where n is the number of nodes in the tree
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Q2. What is abstraction and how do you implement it ??
Ans. 
Abstraction is the concept of hiding complex implementation details and showing only the necessary information.
• Abstraction allows developers to focus on the essential features of an object or system.

• It helps in reducing complexity and improving efficiency in software development.

• Implement abstraction in programming by using abstract classes and interfaces.

• Example: In a car, we don't need to know the internal workings o...read more
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Q1. What is the minimum number of coins to reach the target with the coins 1,2,5
Ans. 
The minimum number of coins to reach a target amount can be calculated using dynamic programming.
• Use dynamic programming to calculate the minimum number of coins needed to reach the target amount.

• Start by initializing an array to store the minimum number of coins needed for each amount from 0 to the target amount.

• Iterate through the coin denominations and update the minimum number of coins needed for each amount based
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Q2. Byte stream to human readable format without using library
Ans. 
Convert byte stream to human readable format without using library
• Iterate through the byte stream and convert each byte to its ASCII character representation

• Concatenate the ASCII characters to form the human readable format

• Handle special characters and edge cases appropriately
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1hr mostly was c questions focusing on pointers, arrays and strings. Few logical questions were there too

2hrs, 5 questions. 1 easy and 4 medium. All leetcode type problems with arrays, strings and matrix

2hrs, simple application development like creating a backend for shopping application. Only simple functions like adding products, quantity, ordering, if quantity is not there then refuse the order and such. Was not asked for DB implementations.

Q1. How to merge a list of sorted arrays in sorted order?
Ans. 
Merge sorted arrays using a min heap to maintain sorted order.
• Create a min heap and insert the first element from each array into the heap.

• Pop the smallest element from the heap and add it to the result array.

• Replace the popped element in the heap with the next element from the same array.

• Continue this process until all elements are merged.
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Q2. Simple discussions about oops, project etc
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Q1. Self introduction for 2 mins
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Q2. Why do you want to join Zoho?
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Q3. What kinda word does Zoho do
Ans. 
Zoho is a software company that provides cloud-based business applications.
• Zoho offers a suite of productivity and collaboration tools such as Zoho CRM, Zoho Books, and Zoho Projects.

• Zoho's products are designed to help businesses manage their operations more efficiently.

• Zoho's software is cloud-based, allowing users to access their data from anywhere with an internet connection.
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Q1. System design and Coding questions
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Q1. General People Management questions
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Q1. SQL question around First_value
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Q1. How CAN protocol Work? What is RTR?
Ans. 
CAN protocol is a communication protocol used in automotive and industrial applications. RTR stands for Remote Transmission Request.
• CAN protocol is a message-based protocol used for communication between electronic control units in vehicles and industrial machinery.

• It uses a two-wire differential bus to transmit data between nodes on the network.

• RTR is a bit in the CAN message that indicates whether the message is a da...read more
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Q2. How Communication control Service work?
Ans. 
Communication control service manages communication between different components in a system.
• Communication control service coordinates the flow of information between various parts of a system.

• It ensures that messages are sent and received correctly and in a timely manner.

• Examples include message queues, event-driven architectures, and service-oriented architectures.
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Q3. Which tool use for code build?
Ans. 
Jenkins is commonly used for code build.
• Jenkins is a popular tool for continuous integration and continuous delivery (CI/CD).

• Other tools like GitLab CI/CD, Travis CI, and CircleCI are also commonly used for code build.

• These tools automate the process of building, testing, and deploying code changes.
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Q1. Managerial standard questions
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Q1. System design and architecture
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Q2. Propose architecture for an application
Ans. 
Propose architecture for an application
• Identify the requirements and constraints of the application

• Choose appropriate technologies and frameworks based on requirements

• Design a scalable and modular architecture

• Consider security, performance, and maintainability

• Implement microservices architecture for flexibility and scalability
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Simple CRUD application design

Q1. Java, Spring,Spring boot, Microservices, etc
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Q1. Managerial qurstions
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Q2. Behavioural questions
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Q1. Salary Negotioation
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