Cludo Technology Consultants Interview Questions and Answers

1 medium-level leetcode question

Q1. 1 String-based question
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Q2. 1 Array-based question
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Q1. Design in-memory file system
Ans. 
Design an in-memory file system for efficient file storage and retrieval
• Use a tree data structure to represent directories and files

• Implement caching mechanisms to improve performance

• Consider using hash tables for fast file lookup

• Support file operations like read, write, delete, and search

• Ensure data consistency and durability through proper error handling
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First round will be coding test which will have Core java questions

Q1. Type of Class Loaders available in java
Ans. 
Java has three types of class loaders: Bootstrap Class Loader, Extension Class Loader, and System Class Loader.
• Bootstrap Class Loader loads core Java classes located in the bootstrap classpath.

• Extension Class Loader loads classes from the extensions directory.

• System Class Loader loads classes from the classpath specified by the CLASSPATH environment variable.
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Q2. Coding question related find 3nd highest number with single loop and minimum time complexity.
Ans. 
Use a single loop to find the 3rd highest number in an array with minimum time complexity.
• Iterate through the array and keep track of the three highest numbers encountered so far.

• Update the three highest numbers as you iterate through the array.

• Return the third highest number once the loop is completed.
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Q3. What is diff between cyclicBarrier and countDownLatch?
Ans. 
CyclicBarrier allows a group of threads to wait at a barrier until all threads have reached it, while CountDownLatch allows one or more threads to wait until a set of operations being performed in other threads completes.
• CyclicBarrier is reusable, while CountDownLatch is not.

• CyclicBarrier allows all threads to wait for each other, while CountDownLatch allows one thread to wait for others.

• CyclicBarrier resets automatica...read more
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Q4. What is diff between JPARepository and CURDRepository?
Ans. 
JPARepository is a Spring Data interface for JPA-based repositories, while CRUDRepository is a generic interface for CRUD operations.
• JPARepository extends CRUDRepository and provides additional JPA-specific methods.

• CRUDRepository is a generic interface for CRUD operations on a repository.

• JPARepository is typically used for JPA-based repositories, while CRUDRepository can be used for any type of repository.

• JPARepository...read more
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Q1. Second round is pending
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C++ on an idle in front of the Interviewer

Q1. Why do you want to join this firm?
Ans. 
I am impressed by the firm's innovative projects and collaborative work environment.
• Impressed by innovative projects

• Attracted to collaborative work environment

• Excited about potential for growth and learning opportunities
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Q1. Question on quick sort
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Q2. Golang internals
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Q3. Question on docker and kubernetes
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Q1. Question on design pattern
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Good DSA knowledge requires

Q1. Merge sorted array
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Q1. Java questions, troubleshooting
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Q2. Merge sorted array
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Q1. Techno managerial
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Not applicable for details disclosure

Q1. General questions
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