Xcelpros Technologies Interview Questions and Answers

Coding Test consists of 3 Problem Question (2 Logical questions and 1 SQL Query ) and Around 20 MCQS
Platform - CoderByte

30 Aptitude Question
3 Mail Writing Question

Q1. Explain 1st Problem Solved in Coding Test. Optimize it.
Ans. 
Solved a sorting problem by implementing quicksort algorithm.
• Implemented quicksort algorithm to efficiently sort the array.

• Used recursion to divide the array into smaller subarrays and sort them individually.

• Optimized the algorithm by choosing a pivot element strategically to minimize comparisons.
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Q2. Explain 2nd Problem Solved in Coding Test. I failed 1 test case in 1st round which was told to solve again.
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Q3. Explain 3rd Question based on SQL Query.
Ans. 
The 3rd question based on SQL query likely refers to a specific query or scenario related to SQL.
• Understand the context of the query being asked about

• Analyze the structure and purpose of the SQL query

• Explain the expected output or result of the query
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Q4. Write a code to Reverse Digits.
Ans. 
Code to reverse digits of a number
• Use modulo operator to extract the last digit of the number

• Multiply the result by 10 and add the next digit until all digits are reversed

• Handle negative numbers separately by converting to positive before reversing
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Q5. A problem question for solving a SQL Query.
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1.Asked to create 2 api's for getcounter and increment counter using spring boot .
2.How to store password in database using spring boot.
3.How to use synchronization

Aptitude test is based on logical questions and small programs

Q1. All basics of core java and whatever you written in resume. ask about the your last projects. difference between then map, array list, collection, set etc.
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Q2. General questions about the andorid studio. ask some logical questions
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Q1. This will be HR round. general hr questions
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Q1. Question Based on Linked List
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Q2. Question based on array
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Q1. What were do you doing in your last job
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Q1. Tell me about ur self
Ans. 
I am a passionate React Js Frontend Developer with experience in building user-friendly and responsive web applications.
• Experienced in developing interactive user interfaces using React Js

• Proficient in HTML, CSS, and JavaScript

• Familiar with state management libraries like Redux

• Strong understanding of RESTful APIs and asynchronous programming

• Ability to work collaboratively in a team environment
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Q2. Topics like, hook, props, in react promise async...... In js
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Q1. Take me through your professional journey
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Q2. KPIs at your current job
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