EPAM Systems Interview Questions, Process, and Tips

There will be some test where you will get some mcq and medium level of problem solving

Q1. Mostlly will be asking about Js, angular, solid principle In all interviews and they will ask you to code and make a simple application using solid principle They will guide you if your basics are good
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Q1. All about my resume
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Q1. About JavaScript and sort function
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Q1. Solid principles
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Q2. Design patterns
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Q1. How do you make an object immutable, followed by how will you make a collection within your immutable object immutable as well so that the state doesn’t change
Ans. 
To make an object immutable, use final keyword for fields and provide only getters. To make a collection immutable, use Collections.unmodifiableList() or similar methods.
• Use final keyword for fields in the object to prevent them from being modified

• Provide only getters for the fields to ensure they cannot be changed externally

• For collections within the object, use Collections.unmodifiableList() or similar methods to cre
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Q2. Coding task - check specific characters in a string , proposed solution with string regex match
Ans. 
Check specific characters in a string using regex match
• Use regex pattern to match specific characters in the string

• For example, to check for digits in a string: /[0-9]/

• Use regex.test() method to check if the pattern exists in the string
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Q1. The interviewer mainly focused on design patterns solid principles and basic C# questions about interfaces abstraction. Gave some problems asked which design pattern you will follow.
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Q1. Manager Round Agile Process SDLC Process Team Managing Skills
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Q1. How to create and handle complex primary key in Spring Data JPA
Ans. 
Complex primary keys in Spring Data JPA can be created using @EmbeddedId or @IdClass annotations
• Use @EmbeddedId annotation to create a composite primary key using an embeddable class

• Use @IdClass annotation to create a composite primary key using a separate class for the key fields

• Implement equals() and hashCode() methods in the embeddable or separate key class for proper comparison and hashing
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