Jupiter Money Backend Developer Interview Questions and Answers

Q1. Write a program to read a file
Ans. 
Program to read a file in backend development
• Use a programming language like Python, Java, or C++ to open and read the file

• Use file handling functions to read the contents of the file

• Handle exceptions for file not found or permission issues

• Close the file after reading to free up system resources
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The first round is an aptitude assessment that consists of coding questions focused on dynamic programming, as well as medium to hard level aptitude and reasoning questions.

The second round focuses on coding and consists of data structure and algorithm questions related to arrays, linked lists, basic Java concepts, strings, and project-based questions from the resume.

The third round also consists of coding, which includes challenging data structures and algorithms questions based on graphs, trees, multithreading, and difficult SQL-based questions.

Q1. What are your short-term and long-term goals?
Ans. 
My short-term goal is to enhance my skills in backend development and contribute effectively to the team. My long-term goal is to become a lead developer and work on innovative projects.
• Short-term goal: Improve backend development skills

• Short-term goal: Contribute effectively to the team

• Long-term goal: Become a lead developer

• Long-term goal: Work on innovative projects
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Q2. How do you approach solving a large problem within a limited timeframe?
Ans. 
I break down the problem into smaller tasks, prioritize them, and focus on the most critical aspects first.
• Break down the problem into smaller, more manageable tasks

• Prioritize tasks based on importance and impact

• Focus on critical aspects first to ensure progress

• Regularly reassess and adjust the plan as needed
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I have to write code for a load balancer. The code should be testable and imahoild be thread safe

Q1. General HR topics, hashmap compleity
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SQL - technical round

Case Study round - 2

Medium Leetcode, Array, String, Tree, DP

Q1. System Design, Design Payment Platform
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Mostly medium leetcode

Mostly medium level DSA

Q1. AWS, GCP , Kubernetes, Docker
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Q1. Security standards, cloud security
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Q1. What is the order of execution in sql
Ans. 
The order of execution in SQL is: FROM, WHERE, GROUP BY, HAVING, SELECT, ORDER BY.
• 1. FROM: Specifies the tables involved in the query.

• 2. WHERE: Filters the rows based on specified conditions.

• 3. GROUP BY: Groups the rows that have the same values into summary rows.

• 4. HAVING: Filters groups based on specified conditions.

• 5. SELECT: Selects the columns to be included in the result set.

• 6. ORDER BY: Sorts the result set base
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Q1. How to do conditional formatting in excel
Ans. 
Conditional formatting in Excel allows users to format cells based on specified conditions.
• Select the range of cells you want to apply conditional formatting to

• Go to the 'Home' tab and click on 'Conditional Formatting'

• Choose the desired formatting option, such as color scales, data bars, or icon sets

• Set the conditions for when the formatting should be applied, such as greater than, less than, or equal to a certain valu...read more
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