Bajaj Capital Customer Support Officer Interview Questions and Answers

Round duration - 100 minutes
Round difficulty - Medium

The test was conducted on the AMCAT platform, with webcam and tab-switch monitoring. All questions were mandatory to answer. Coding questions were 2, one being difficult and another's the one given below.

Q1. 
Number of Mismatching Bits
Determine the number of bits that differ between the binary representations of two given integers "first" and "second".
Input:
The input starts with an integer ‘T’ representin...read more
Ans. 
Calculate the number of mismatching bits between two given integers in their binary representation.
• Convert the integers to binary representation using bitwise operations.

• Count the number of differing bits by comparing the binary representations.

• Return the count of mismatching bits for each test case.
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Round duration - 50 minutes
Round difficulty - Medium

This technical interview was scheduled at 9 AM for me.

Q1. 
BST Node Deletion Problem
Given a binary search tree (BST) and a key value K, your task is to delete the node with value K. It is guaranteed that a node with value K exists in the BST.
Explanation:
A bi...read more
Ans. 
Implement a function to delete a node with a given value from a binary search tree (BST).
• Traverse the BST to find the node with the value K to be deleted.

• Handle different cases like node with no children, one child, or two children.

• Update the pointers of the parent node and child nodes accordingly.

• Return the root of the modified BST after deletion.
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Round duration - 20 minutes
Round difficulty - Medium

Took place in the evening, this round assessed the overall personality. Followed by a discussion on the resume; the international accolades I had received in Computer Science and in extracurriculars, my experiences, future goals and so on.
Lastly, I was asked if I had any questions and about the preferred locations.

Q1. Machine learning topics
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Hedge fund acounting

Q1. Just a discussion with head of department
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DSA questions lettcode easy and medium

Q1. Rotate and image by 90 degree
Ans. 
To rotate an image by 90 degrees, transpose the image matrix and then reverse each row.
• Transpose the image matrix by swapping elements across the diagonal

• Reverse each row of the transposed matrix
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Q2. Print cousin nodes
Ans. 
Print cousin nodes in a tree structure
• Traverse the tree to find the parent node of the given node

• Find all the children of the parent node except the given node

• Print the names of the cousin nodes
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Q1. Design google drive
Ans. 
Design a cloud storage service like Google Drive
• Implement user-friendly interface for uploading, organizing, and sharing files

• Provide seamless integration with other Google services like Gmail and Google Docs

• Ensure robust security measures to protect user data

• Offer scalable storage options for individuals and businesses

• Enable offline access and synchronization across devices
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Q2. Follow up questions on LLD/HLD
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Q1. Past project related questions
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Q2. Mostly checking the fitment
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Q1. Data structure interview questions
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Q2. Queue , Stack questions asked
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Hacker rank test with 2 questions to solve

Q1. Just technical round, you should know basic in your language
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Online test for 1 hr

Tree implementation : search, add

Q1. Design pattern used
Ans. 
The design pattern used is the Singleton pattern.
• Ensures a class has only one instance and provides a global point of access to it

• Commonly used in scenarios where only one instance of a class is needed, such as database connections or logging

• Implemented by creating a static method to return the same instance of the class each time it is called
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Q2. Design project and classes
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Q1. Current project
Ans. 
Currently leading a cross-functional team in developing a new product launch strategy.
• Leading a cross-functional team

• Developing a new product launch strategy

• Ensuring alignment with company goals and objectives
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Q2. Discussion on prod
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