TCS IT Analyst Interview Questions, Process, and Tips

Q1. Internal working of hashmap
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HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where the pair will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• To retrieve a value, the key is ha...read more
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Q2. SQL JOIN - LEFT JOIN, RIGHT JOIN
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Java 8 springboot programming

Q1. BDD framework explain in detail
Ans. 
BDD framework is a software development process that encourages collaboration between developers, QA, and non-technical stakeholders.
• BDD stands for Behavior Driven Development

• It focuses on defining the behavior of a system through examples in plain text

• Uses a common language (like Gherkin syntax) to describe the expected behavior of the system

• Helps in creating automated tests based on these behavior specifications
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Q2. What is regression testing
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Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing functionality.
• Regression testing is performed after code changes to verify that the existing features still work correctly.

• It helps in identifying any defects introduced by new code changes.

• Automated testing tools are often used for regression testing to save time and effort.

• Example...read more
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Q1. Project discussion
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Q2. Technical Full stack .Net questions
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Q1. Question related to domain knowledge like what is oracle database ? which version you are using ?
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Q2. What is SQL and PL/SQL
Ans. 
SQL is a standard language for managing databases, while PL/SQL is an extension of SQL used for procedural programming.
• SQL stands for Structured Query Language and is used for managing and manipulating relational databases.

• PL/SQL stands for Procedural Language/SQL and is an extension of SQL that adds procedural programming capabilities.

• SQL is used for querying data, inserting, updating, and deleting records in a databa...read more
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Q1. Question related to current projects.
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Q1. Oops concept basic question
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Q2. Selenium basic question
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String count program java