Japp Tech Interview Questions and Answers

Q1. Java related basic questions
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Q2. Android questions based on previous roles
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Q1. Scenario based questions were asked
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Q2. In depth questions for knowledge check
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Q1. Previous roles & responsibilities
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Q2. One basic stack & queue question
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1 coding question and MCQ on CS fundamentals were asked.

Q1. Questions were on my project. It was a full stack project on MERN. I was asked about non blocking IO, promises, alternatives to react.
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Q2. I was asked a DSA question to find the set of element that occurs twice in the array. I was expected to run the code.
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Q3. I was asked basics about cloud and if I have any related experience as the role would be devops.
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Q1. I was asked basics questions about myself. It was a very short 15 minute interview.
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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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Q1. Basic questions based on CV
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Q2. Why do you want to leave your last job?
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Q3. Are you comfortable in night shift?
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Q4. Do you have to serve notice period?
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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. Tell me about yourself
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Q1. Tell me about your current profile
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Q1. Tell me about hour strength
Ans. 
My strength lies in my analytical skills, attention to detail, and ability to identify cost-saving opportunities.
• Strong analytical skills to identify trends and patterns in data

• Attention to detail to ensure accuracy in procurement processes

• Ability to identify cost-saving opportunities through negotiation and vendor management
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Q1. How you do contracting
Ans. 
I handle contracting by following a structured process to negotiate and finalize agreements with vendors.
• Developing clear contract requirements

• Negotiating terms and pricing with vendors

• Reviewing and finalizing contracts

• Ensuring compliance with legal and company policies

• Maintaining relationships with vendors for ongoing contract management
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Q1. What is your experience
Ans. 
I have 3 years of experience in customer support roles, handling inquiries, resolving issues, and providing excellent service.
• 3 years of experience in customer support roles

• Handled inquiries and resolved issues

• Provided excellent customer service
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Q1. Difference between list and set , different data types in python , questions on dictionary
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Q2. SQL and table related questions and project discussion
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