Groww Software Development Engineer II Interview Questions and Answers

Q1. This round was purely based on DSA. One question of Leetcode hard difficulty was asked. Question Name - Median of two sorted arrays.
Add your answer

Q1. This was low level design round. I was asked to design a system like Redbus. Functional Requirements - 1. user can login/signup on the platform 2. functionality to choose btw different operational routes....read more
Add your answer

Q1. This round was taken by their Engineering Director. Questions were related to multithreading, types of entity relationships with examples, transaction management in Spring Boot, JVM components, garbage col...read more
Add your answer
Q2. Later interviewer asked me to code a multithreading assignment - 1. Create a fixed threadpool of size 10. 2. Submit number of tasks to the threadpool. 3. Return the results from every task and print in mu...read more
Add your answer

Low-level design interview
I need to design a Music player app using oops concept

Q1. Sort the stack in O(1) time complexity
Ans. 
Use an additional stack to store sorted elements and maintain the minimum element at the top of the original stack.
• Create a new stack to store sorted elements.

• Pop elements from the original stack and compare with the top element of the new stack.

• If the popped element is smaller, push it to the new stack. If larger, keep popping from the new stack and push to the original stack until the correct position is found.

• Repeat...read more
Answered by AI
View 1 more answer
Q2. Difference between process and thread
Ans. 
A process is an instance of a program running on a computer, while a thread is a smaller unit of execution within a process.
• A process has its own memory space, while threads within the same process share memory.

• Processes are independent of each other, while threads within the same process can communicate with each other.

• Processes are heavyweight, requiring separate memory and resources, while threads are lightweight an...read more
Answered by AI
Add your answer
Q3. Difference between abstract class and interface
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructor, fields, and methods, while interface cannot have any of these.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract class is used to provide a common base for multiple derived classes, while interface is used to define a contract fo...read more
Answered by AI
Add your answer
Q4. What is race condition?
Ans. 
A race condition is a situation in which the outcome of a program depends on the order of execution of its threads or processes.
• Occurs when multiple threads or processes access shared data or resources concurrently

• Can lead to unpredictable behavior or bugs in the program

• Prevented by using synchronization mechanisms like locks or semaphores

• Example: Two threads trying to increment a shared variable simultaneously
Answered by AI
Add your answer
Q5. What is normalization in dbms
Ans. 
Normalization in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down a database into smaller, more manageable tables.

• It helps in reducing data redundancy by storing data in a structured way.

• There are different normal forms like 1NF, 2NF, 3NF, BCNF, etc.

• Example: In a database of students, instead of storing student details in multiple ...read more
Answered by AI
Add your answer