EPAM Systems Team Lead Interview Questions, Process, and Tips

Q1. Contents of test plan and stratergy
Ans. 
Test plan and strategy outline the approach for testing a software application.
• Test plan includes objectives, scope, resources, schedule, and risks.

• Test strategy defines testing approach, techniques, tools, and responsibilities.

• Both documents are essential for successful testing and quality assurance.

• Example: Test plan may include test cases, test scenarios, and test data.

• Example: Test strategy may outline automation t...read more
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Q2. Sql query to find unique records, what is truncate, abort,what are DML commands
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SQL query to find unique records, truncate, abort, DML commands
• To find unique records in SQL, you can use the DISTINCT keyword in your SELECT statement.

• Truncate is a SQL command used to quickly delete all records from a table, but it cannot be rolled back.

• Abort is a command used to cancel a transaction in SQL.

• DML (Data Manipulation Language) commands in SQL include INSERT, UPDATE, DELETE.
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Q1. Design pattern and solid principle
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Q2. How to call service in angular
Ans. 
To call a service in Angular, you need to inject the service into a component or another service and then call its methods.
• Inject the service into the component or service constructor

• Call the service method using the injected instance
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MCQ with spark, sql, DBMS

Q1. Memory usage in spark. types of memory
Ans. 
Spark uses two types of memory - storage memory and execution memory.
• Spark uses storage memory to cache and persist data for reuse.

• Execution memory is used for computation and shuffling data between stages.

• Memory management in Spark is crucial for optimizing performance and avoiding out-of-memory errors.
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Q1. Pyspark related questions; coding questions as well.
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Q1. SQL queries on windowing functions
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Q1. Salary discussion as per work experience.
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Q1. Moderate c# questions
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Q1. Project estimation Project Matrices
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