AmbitionBox
Interview Questions
- Reviews
- Salaries
- Interview Questions
- About Company
- Benefits
- Jobs
- Office Photos
- Community
Add office photos
Filter interviews by
Gammastack Interview Questions and Answers
28 Interview questions
Optimizing a database improves performance, reduces latency, and enhances scalability for better data management.
1. Indexing: Create indexes on frequently queried columns to speed up data retrieval. For example, adding an index on a 'user_id' column in a 'transactions' table.
2. Query Optimization: Analyze and rewrite slow queries to reduce execution time. Use EXPLAIN to understand query performance.
3. Normalizatio...
To reverse an array, iterate through it and swap elements from both ends towards the center.
1. Use a loop to iterate from the start to the midpoint of the array.
2. Swap the current element with its corresponding element from the end.
3. Continue until you reach the midpoint.
Example: For array ['a', 'b', 'c', 'd'], after reversing it becomes ['d', 'c', 'b', 'a'].
ORM is a programming technique that allows developers to interact with databases using object-oriented programming languages.
ORM maps database tables to classes in programming languages, making data manipulation easier.
It abstracts SQL queries, allowing developers to use methods to perform CRUD operations.
Popular ORM frameworks include Hibernate for Java, Entity Framework for .NET, and Sequelize for Node.js.
Exampl...
MySQL executes parallel queries using multiple threads, optimizing resource usage and improving performance for concurrent operations.
MySQL uses a multi-threaded architecture, allowing multiple queries to run simultaneously.
Each query is handled by a separate thread, which can utilize multiple CPU cores.
The InnoDB storage engine supports parallel query execution by managing locks efficiently.
For example, SELECT qu...
Transactions are sequences of operations performed as a single logical unit of work, ensuring data integrity and consistency.
A transaction must be atomic, meaning it either completes fully or not at all.
Transactions are often used in databases to manage changes, like transferring funds between accounts.
They follow the ACID properties: Atomicity, Consistency, Isolation, Durability.
Example: In a banking system, tran...
Promises are objects in JavaScript that represent the eventual completion or failure of an asynchronous operation.
A promise can be in one of three states: pending, fulfilled, or rejected.
Example: A promise is created using 'new Promise()' and can be resolved or rejected based on the outcome of an async operation.
Promises allow chaining with '.then()' for success and '.catch()' for error handling.
Example: fetch('ur...
SQL databases are structured and relational, while NoSQL databases are unstructured and flexible.
SQL databases use structured query language (e.g., MySQL, PostgreSQL).
NoSQL databases are schema-less and can store unstructured data (e.g., MongoDB, Cassandra).
SQL databases are ideal for complex queries and transactions.
NoSQL databases excel in scalability and handling large volumes of data.
SQL databases enforce ACID...
A schema for a Ludo game includes players, game state, and board configuration to manage gameplay effectively.
Players: Each player has a unique ID, name, and color (e.g., Player 1: {id: 1, name: 'Alice', color: 'Red'}).
Game State: Tracks the current state of the game (e.g., {status: 'in_progress', currentTurn: 1}).
Board Configuration: Represents the board layout, including home positions and safe zones (e.g., {hom...
ACID properties ensure reliable transactions in databases, maintaining data integrity and consistency.
Atomicity: Transactions are all-or-nothing. Example: If a bank transfer fails, no money is deducted.
Consistency: Transactions bring the database from one valid state to another. Example: A transaction must not violate any database rules.
Isolation: Transactions occur independently. Example: Two transactions should ...
I have extensive experience in testing software applications, focusing on both manual and automated testing methodologies.
Conducted functional testing for web applications, ensuring all features worked as intended.
Developed automated test scripts using Selenium for regression testing, reducing testing time by 30%.
Performed performance testing using JMeter to identify bottlenecks in the application under load.
Colla...
Gammastack Interview Experiences
29 interviews found
Anonymous
I applied via LinkedIn and was interviewed in Jul 2024. There were 3 interview rounds.
(2 Questions)
- Q1. What is your work experience in gaming
- Ans.
I have 5 years of experience working as a Game Artist in the gaming industry.
Worked on creating 2D and 3D assets for various game projects
Collaborated with game designers and developers to ensure visual consistency
Experience with game engines like Unity and Unreal Engine
Created concept art, character designs, and environment assets
Knowledge of animation and visual effects for games
- Q2. What is your salary expectation
- Ans.
My salary expectation is based on industry standards, my experience, and the responsibilities of the role.
Research industry standards for Game Artists salaries
Consider my level of experience and skills
Factor in the responsibilities and requirements of the specific role
Be open to negotiation based on benefits and other perks offered
Design a character and Royal symbol (fully rendered in realistic style) and one Mid Pay concept sketch for slot game.
(3 Questions)
- Q1. About yourself and experience
- Q2. About assignment related questions
- Q3. Some unprofessional questions
Interview Preparation Tips
I applied via Job Portal and was interviewed in Jul 2024. There was 1 interview round.
(2 Questions)
- Q1. Round 2 - How will you handle under performing employee ?
- Ans.
Address the issue directly, provide feedback and support, set clear expectations, offer training or resources, consider reassignment or termination if necessary.
Have a private conversation with the employee to discuss the performance issues and provide specific examples.
Offer support and resources to help the employee improve, such as additional training or mentoring.
Set clear expectations and goals for improvement, wi...
- Q2. Round 2 - How would you handle CR from Client at last stage of Sprint ?
- Ans.
I would prioritize the CR based on impact and urgency, communicate with the client to understand their needs, and work with the team to assess feasibility and potential impact on the sprint.
Prioritize the CR based on impact and urgency
Communicate with the client to understand their needs and expectations
Work with the team to assess feasibility and potential impact on the sprint
Discuss with the team to determine if the ...
Interview Preparation Tips
In 1st round I got selected. In 2nd round the senior manager showed extra discussion out of interview scope to divert the candidate focus of interview. I was silent as from Start I understood by voice gestures that interview is just for formal process. Reason - Might be he wanted to Hire the refraal.
He asked me above 2 questions, I answered with fear and given standard process of following the issue for this 2 problems. Its defined by pmii and standard followed throughout globe. I gave answer with my company project example.
However unsatisfied by the Answer the interviewer told I shouldn't take project manager role as carrer.
( Advice to Sumit Interviewer - I got offer from 2 companies, However you don't have that right to choose carrer of people, Its in Gods hands. Candidate is in Project Management department from start of carrer so just due to your personal dissatisfaction of answer, Please don't mention that He should opt out from Project Manager carrer. You have not paid for Candidate education.
I hope its clear
I applied via Hirist and was interviewed in Oct 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Basic Javascript promises questions.
- Q2. Database queries.
One dsa question - print the longest odd number from the string.
(3 Questions)
- Q1. What is Event Loop in Node.Js, How it works
- Ans.
Event Loop in Node.js is a mechanism that allows Node.js to perform non-blocking I/O operations.
Event Loop is responsible for handling asynchronous operations in Node.js.
It allows Node.js to perform multiple operations simultaneously without blocking the execution.
Event Loop continuously checks the event queue for any pending tasks and executes them in a loop.
Example: setTimeout() function in Node.js uses Event Loop to...
- Q2. Indexing, Sharding, DB Scaling, Application Security and scaling
- Q3. DSA question related to array, string
Skills evaluated in this interview
yogesh wakle
I appeared for an interview in Feb 2025, where I was asked the following questions.
- Q1. Interview experince was good..they gone through all the practicale concept means they are giving scenario to write code for react and node js also they giving the one api to show data as well do some opera...
- Q2. It was good prepare machine code task for react,basic javascript code focus on promise,postgreSQL query
4 coding question 1 easy 2 medium 1 hard
(2 Questions)
- Q1. Brief introduction of yourself
- Q2. Write an sql query to find second largest salary
- Ans.
SQL query to find the second largest salary in a table
Use the MAX() function to find the highest salary
Use the WHERE clause to exclude the highest salary
Order the salaries in descending order and limit the result to 1
(3 Questions)
- Q1. DSA theory question and their time complexities
- Q2. DBMS normalization acid property keys etc
- Q3. Coding easy to medium level
Skills evaluated in this interview
I appeared for an interview in Jan 2025, where I was asked the following questions.
- Q1. What is Object-Relational Mapping (ORM)?
- Ans.
ORM is a programming technique that allows developers to interact with databases using object-oriented programming languages.
ORM maps database tables to classes in programming languages, making data manipulation easier.
It abstracts SQL queries, allowing developers to use methods to perform CRUD operations.
Popular ORM frameworks include Hibernate for Java, Entity Framework for .NET, and Sequelize for Node.js.
Example: In...
- Q2. How do parallel queries execute in MySQL?
- Ans.
MySQL executes parallel queries using multiple threads, optimizing resource usage and improving performance for concurrent operations.
MySQL uses a multi-threaded architecture, allowing multiple queries to run simultaneously.
Each query is handled by a separate thread, which can utilize multiple CPU cores.
The InnoDB storage engine supports parallel query execution by managing locks efficiently.
For example, SELECT queries...
- Q3. What are at least five strategies for optimizing a database?
- Ans.
Optimizing a database improves performance, reduces latency, and enhances scalability for better data management.
1. Indexing: Create indexes on frequently queried columns to speed up data retrieval. For example, adding an index on a 'user_id' column in a 'transactions' table.
2. Query Optimization: Analyze and rewrite slow queries to reduce execution time. Use EXPLAIN to understand query performance.
3. Normalization: Or...
- Q4. What is the method to write a program that reverses an array?
- Ans.
To reverse an array, iterate through it and swap elements from both ends towards the center.
1. Use a loop to iterate from the start to the midpoint of the array.
2. Swap the current element with its corresponding element from the end.
3. Continue until you reach the midpoint.
Example: For array ['a', 'b', 'c', 'd'], after reversing it becomes ['d', 'c', 'b', 'a'].
Interview Preparation Tips
Shubham Bhandari
(1 Question)
- Q1. They make you do pixijs assignments
(1 Question)
- Q1. They give you a game in pixi.js
(1 Question)
- Q1. Scenaario based and calculator in pii.js
I appeared for an interview in Jan 2025, where I was asked the following questions.
- Q1. What is ORM , how can you optimise database , Event-loop , transactions , reverse an array - DSA (its space complexity) , system design
- Q2. Promises types, ACID, transactions, how SQL works in the background, how parallel transactions work in SQL
Interview Preparation Tips
Priyanka S
Selected
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. Work experience
- Q2. What is your experience in testing?
- Ans.
I have extensive experience in testing software applications, focusing on both manual and automated testing methodologies.
Conducted functional testing for web applications, ensuring all features worked as intended.
Developed automated test scripts using Selenium for regression testing, reducing testing time by 30%.
Performed performance testing using JMeter to identify bottlenecks in the application under load.
Collaborat...
Top trending discussions
Gammastack Interview FAQs
Some of the top questions asked at the Gammastack interview -
The duration of Gammastack interview process can vary, but typically it takes about less than 2 weeks to complete.
Tell us how to improve this page.
Gammastack Interviews By Designations
- Gammastack Solution Engineer Interview Questions
- Gammastack Software Engineer Interview Questions
- Gammastack Node JS Developer Interview Questions
- Gammastack Software Developer Interview Questions
- Gammastack Full Stack Software Developer Interview Questions
- Gammastack Game Developer Interview Questions
- Gammastack Project Manager Interview Questions
- Gammastack Test Engineer Interview Questions
- Show more
Interview Questions for Popular Designations
- Solution Engineer Interview Questions
- Executive Interview Questions
- Business Analyst Interview Questions
- Senior Associate Interview Questions
- Consultant Interview Questions
- Associate Software Engineer Interview Questions
- Java Developer Interview Questions
- System Engineer Interview Questions
- Show more
Overall Interview Experience Rating
based on 30 interview experiences
Difficulty level
Duration
Interview Questions from Similar Companies
Gammastack Reviews and Ratings
based on 67 reviews
Rating in categories
2-4 Yrs
Not Disclosed
4-8 Yrs
Not Disclosed
5-10 Yrs
Not Disclosed
|
Solution Engineer
179
salaries
|  ₹4.6 L/yr - ₹11.4 L/yr |
|
Senior Solution Engineer
33
salaries
| ₹10.8 L/yr - ₹17.4 L/yr |
|
Software Engineer
24
salaries
| ₹4.1 L/yr - ₹9.5 L/yr |
|
Software Developer
13
salaries
| ₹4 L/yr - ₹8.2 L/yr |
|
QA Engineer
9
salaries
| ₹2.8 L/yr - ₹6.5 L/yr |
Iksula
Mantra Technologies
Dyninno India
Tech2Globe
- Home >
- Interviews >
- Gammastack Interview Questions
