Subex Senior Engineer Interview Questions and Answers

Medium DSA question on dynamic programming

90 min coding test with 4-5 problems to solve

Q1. Technical rounds mostly goes around the project work ans some were based on the JD.
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Q1. Questions related to SAP BW and HANA
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Q1. Questions related to SAP BW and HANA
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Q1. Reason for Job Change
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Duration: 1hr
Topics: Array, LinkedList,Stack

Q1. Write code for Insertion in a binary tree.
Ans. 
Code for insertion in a binary tree
• Create a new node with the given data

• If the tree is empty, make the new node as root

• Else, traverse the tree to find the appropriate position to insert the new node

• If the data is less than the current node, go to the left subtree

• If the data is greater than the current node, go to the right subtree

• Repeat until an appropriate position is found

• Set the new node as the child of the appropri
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Q2. Write code for quick sort
Ans. 
Quick sort is a divide-and-conquer algorithm that sorts an array by partitioning it into two sub-arrays.
• Choose a pivot element from the array

• Partition the array around the pivot element

• Recursively apply quick sort to the left and right sub-arrays

• Combine the sorted sub-arrays to get the final sorted array
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Q1. Various DBMS related question(JOINS, SORT, LIMIT)
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Q1. Tell us about yourself.
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Q2. Why do want to join the company
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Q1. Technical round with live coding.
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Q2. Java 8 questions, spring boot related questions
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Q1. Spring boot, Kafka , logging caching , design patterns questions.
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Q1. Basic short interview mostly related with work experience and compensation
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Q1. Asked Kadane's algorithm, and some android related questions.
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Q1. Design a hashmap, and optimise it
Ans. 
Design and optimize a hashmap
• Choose a good hash function to minimize collisions

• Implement dynamic resizing to handle increasing load factor

• Consider using open addressing or separate chaining for collision resolution

• Use an efficient data structure for storing key-value pairs, such as an array or linked list
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Q1. Design a custom recyclerview with appropriate data structures
Ans. 
Custom recyclerview with appropriate data structures
• Create a custom adapter extending RecyclerView.Adapter

• Implement onCreateViewHolder() and onBindViewHolder() methods

• Use appropriate data structures like ArrayList or HashMap for efficient data handling

• Implement onClickListener for item clicks

• Use ViewHolder pattern for efficient view recycling
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Q1. What are your expectations related to work and salary
Ans. 
I expect fair compensation for my skills and experience, and a challenging work environment that allows for growth and learning.
• I am looking for a salary that is commensurate with my experience and skills.

• I am open to negotiation and willing to discuss salary and benefits.

• I am looking for a challenging work environment that allows me to learn and grow as a software engineer.

• I am interested in opportunities for professi...read more
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