EPAM Systems Hadoop Developer Interview Questions and Answers

Q1. What is Dependency Injection?
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Q2. How does angular components communicate with each other?
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Q3. How can you optimize a stored procedure in MSSQL?
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Q4. What is Kestrel in .net Core?
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It was an aptitute round and 2 coding questions was there

Q1. Tell me about yourself
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Q2. We had discussion on projects than mentioned in my resume
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Q3. Then he moved to DSA question in which he told to how you will insert node in doubly linked list ,I answered all correctly he appreciated me also but after 5 min one person came and told you can go . I was...read more
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Q1. Java programs related to strings
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Q2. Collections question in java
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OS questions, locking and threads etc

Basic questions on Linked list

Q1. IPC mechanisms in OS, process management
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IPC mechanisms in OS facilitate communication between processes, while process management involves creating, scheduling, and terminating processes.
• IPC mechanisms include shared memory, message passing, and sockets.

• Shared memory allows processes to share a portion of memory for communication.

• Message passing involves sending and receiving messages between processes.

• Sockets enable communication between processes over a ne...read more
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Q2. Fibonacci series code
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Q1. What challenging work you did in previous company
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Implemented a real-time data processing system to handle large volumes of data efficiently.
• Designed and implemented a distributed system using Apache Kafka for real-time data processing.

• Optimized data processing algorithms to handle large volumes of data without impacting performance.

• Collaborated with cross-functional teams to ensure seamless integration of the system with existing infrastructure.
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Q1. Oops concept,extension method ,constructors,arrays
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Q2. Multithreading ,singleton,extension method,middleware
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Question based on fundmentals of CS

Q1. Dsa related problem ,SQL and your project.
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Q2. Majorly focouses on Dsa and SQL
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Q1. Ask question about your shifts and timings and will you able to relocate or not
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Fibonacci series and program to find the max number in list

Q1. What is oops and explain each of the terms
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OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
• OOPs consists of four main principles: Inheritance, Encapsulation, Abstraction, and Polymorphism.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation refers to the bundling of data and methods that operate on the data into a single unit.

• Abstraction focuses on hiding the int...read more
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Q2. What is list, dictionary, set and tuple and difference between them
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List, dictionary, set, and tuple are data structures in Python with different characteristics and use cases.
• List: ordered collection of items, mutable (can be changed), represented by square brackets []

• Dictionary: unordered collection of key-value pairs, mutable, represented by curly braces {}

• Set: unordered collection of unique items, mutable, represented by curly braces {}

• Tuple: ordered collection of items, immutable ...read more
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Q1. C++ fundamental
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Q2. Reverse linked list
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