ALTRAN SOLUTIONS INDIA Software Developer Interview Questions and Answers

2 DSA medium questions was asked.

2 DSA coding questions and CS fundamentals

Q1. System design questions in a projects
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Q1. MC question on desing pattern
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Q2. Graph question, tree and hash
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Q3. Design Book my show
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Dp question of jump game

Q1. How to optimise fetching 1 lakh entries from db
Ans. 
Use pagination, indexing, caching, and query optimization to fetch 1 lakh entries efficiently from the database.
• Implement pagination to fetch data in smaller chunks

• Create indexes on columns frequently used in queries

• Use caching to store frequently accessed data

• Optimize queries by avoiding unnecessary joins and using appropriate indexes

• Consider using database-specific optimizations like query hints or stored procedures
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Q1. What is a comparator?
Ans. 
A comparator is a function that compares two objects to determine their ordering.
• Used in sorting algorithms to determine the order of elements

• Returns a negative value if the first object is less than the second, zero if they are equal, and a positive value if the first object is greater

• Commonly used in Java with the Comparator interface
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Q2. What is reentrant lock?
Ans. 
A reentrant lock is a synchronization primitive that allows a thread to re-enter a critical section it already holds.
• Prevents deadlock by allowing a thread to acquire the lock multiple times

• Each lock acquisition must be followed by a corresponding release

• Commonly used in multi-threaded programming to protect shared resources
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Q1. Opps concept on spring boot
Ans. 
OOPs concepts in Spring Boot refer to the principles of Object-Oriented Programming applied in the development of Spring Boot applications.
• Inheritance: Allows classes to inherit attributes and methods from other classes.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Allows objects to be treated as instances of their parent class.

• Abstraction: Hides the implementation d...read more
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Q2. How docker works and kunermates
Ans. 
Docker is a platform for developing, shipping, and running applications in containers. Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications.
• Docker allows developers to package applications and their dependencies into containers for easy deployment and scalability.

• Kubernetes helps in automating the deployment, scaling, and management of containerized applic...read more
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Basic core java, reasoning,english

Dsa question of arrays

Q1. Tell me about yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development technologies

• Strong problem-solving skills

• Team player with excellent communication skills
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Q2. Stacks and queues
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Q3. Time complexity
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Q1. Basic Java questions
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Q2. Spring, Spring boot basics
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Q1. Microservices Communications
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Q2. Project level experiences
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Quants, Reasoning and Verbal
Computer fundamental and pseudocode

15 mins with general topics

Q1. What do like in your college the most?
Ans. 
I enjoyed the collaborative projects and hands-on learning experiences in my college.
• Collaborating with classmates on coding projects

• Hands-on experience with different programming languages

• Engaging discussions in computer science classes
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Q2. Do you have any other offer?
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