R Systems International Software Engineer II Interview Questions and Answers

Dynamic programming questions were asked
1) convert stack to queue
2) replace special characters in a string

Q1. Dynamic programming - two questions were asked
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The coding test consists of multiple-choice questions and one medium-hard level coding question.

Q1. Given three jugs with different capacities and no measuring tools, how can you measure out a specific amount of water using the jugs you have?
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Q2. What is the angle between the minute and hour hand of a clock at 3:45?
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Q3. What is indexing in Database Management Systems (DBMS)?
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Q4. What is the lifecycle of a React component?
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Q5. How you delete entry in mongodb database
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Q1. Basic java fundamentals
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Q2. Spring boot,sql
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Q1. Some technical questions from manager
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Q2. Some challenges or scenario based questions
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Q1. Salary discussion mostly
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Q2. Benifts that they offer with TR
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Q1. What is the importance of manual testing when compared to automation testing
Ans. 
Manual testing is important for exploratory testing, usability testing, and ad-hoc testing.
• Manual testing allows for exploratory testing where testers can explore the application and identify unexpected issues.

• Usability testing, which involves real users interacting with the software, is best done manually to capture user experience.

• Ad-hoc testing, where testers randomly test the application without predefined test cas...read more
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Q2. Real life scenario on web application testing
Ans. 
Testing a web application for an online shopping platform
• Testing the functionality of adding items to the cart and checking out

• Testing the payment gateway integration for secure transactions

• Testing the search functionality to ensure accurate results are displayed

• Testing the responsiveness of the website on different devices and browsers
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Q1. What is the inheritance?
Ans. 
Inheritance is a mechanism in object-oriented programming where a class inherits properties and behaviors from another class.
• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can override or extend the functionality of the base class
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Q2. What are the types of joins in mysql
Ans. 
Types of joins in MySQL include inner join, left join, right join, and full join.
• Inner join: Returns rows when there is a match in both tables.

• Left join: Returns all rows from the left table and the matched rows from the right table.

• Right join: Returns all rows from the right table and the matched rows from the left table.

• Full join: Returns rows when there is a match in one of the tables.
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Q1. How to handle multiple api's
Ans. 
Use a centralized API gateway to manage and route requests to multiple APIs efficiently.
• Implement a centralized API gateway to handle incoming requests and route them to the appropriate API based on the endpoint.

• Utilize API management tools like Apigee, Kong, or AWS API Gateway to manage and monitor multiple APIs.

• Consider implementing a caching layer to improve performance and reduce the number of requests to external
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Q2. What does strstr function do?
Ans. 
strstr function searches for a substring within a string and returns a pointer to the first occurrence of the substring.
• Used in C programming language

• Syntax: char *strstr(const char *haystack, const char *needle)

• Example: char *str = strstr("hello world", "world")
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Karat Interview for next filtering the candidate

Q1. Design Snake Game (Nokia based)
Ans. 
Design a classic Snake game based on Nokia phones.
• Use a 2D array to represent the game board.

• Implement logic for snake movement and growth.

• Include collision detection with walls and itself.

• Add food items for the snake to eat and grow.

• Display the game on a grid-based interface.
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Q2. Ballot based voter
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