EPAM Systems Interview Questions, Process, and Tips

Q1. Coding question on Java 8
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Q1. Coding and spring
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Q1. Coding and behavioural
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Q1. RACI Matrix, UML, Requirement Gathering techniques
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Q2. Sprint velocity related questions
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Na not applicable for this thing

Q1. Front End Technologies html css js
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Q1. How to make class mutable?
Ans. 
To make a class mutable, provide public setter methods to modify its internal state.
• Add public setter methods to modify class fields

• Avoid using final keyword for class fields

• Implement proper validation logic in setter methods

• Consider thread safety when allowing mutability
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Q2. In array smallest product elements
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Find the smallest product of elements in an array of strings.
• Convert each string element to integer and calculate the product of all elements.

• Keep track of the smallest product found so far.

• Return the smallest product at the end.
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Q3. How to design for input and output files?
Ans. 
Designing for input and output files involves considering file formats, data validation, error handling, and security measures.
• Understand the requirements for input and output files, including file formats and data structures.

• Implement data validation to ensure that input files meet the required format and content.

• Include error handling mechanisms to address issues such as missing files or incorrect data.

• Consider secur...read more
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Q1. TEst strategy document
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Q2. Finally vs finalize
Ans. 
finally is used in exception handling to define a block of code that will always be executed, while finalize is a method in Java used for cleanup operations before an object is destroyed.
• finally is used in try-catch blocks to define a block of code that will always be executed, regardless of whether an exception is thrown or not

• finalize is a method in Java that is called by the garbage collector before an object is des...read more
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Q3. 403 status code meaning
Ans. 
403 status code means forbidden access to the requested resource.
• 403 status code indicates that the server understood the request but refuses to authorize it.

• It is commonly used when the user does not have the necessary permissions to access the resource.

• Examples include trying to access a restricted page without proper credentials or attempting to perform an action that requires higher privileges.
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Q4. Test listeners types
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Test listeners types are used in software testing to monitor and respond to events during test execution.
• Types of test listeners include TestNG listeners, JUnit listeners, and custom listeners

• TestNG listeners include ITestListener, ISuiteListener, and IInvokedMethodListener

• JUnit listeners include RunListener and TestWatcher

• Custom listeners can be created to handle specific events in test execution
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Q5. Automation framework
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Q1. Java basics + 2 qs on dsa
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Q1. Java + dsa , java design patterns
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Q1. Design YouTube, some questions on linked list and trees
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