TCS Interview Questions, Process, and Tips

General Aptitude questions

Medium level coding question-java, c++

Q1. Projects discussion, CS Fundamentals
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Q2. Real life examples of Data Structure
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Data structures are used in various real-life scenarios to organize and manage data efficiently.
• Phone contacts stored in a hash table for quick access

• Employee records stored in a linked list for easy insertion and deletion

• File system organized as a tree structure for hierarchical storage
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Q3. Swap two variables values without using third variable
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Swap two variables values without using third variable
• Use XOR operation to swap two variables without using a third variable

• Example: a = 5, b = 10. a = a XOR b, b = a XOR b, a = a XOR b

• Ensure variables are not the same to avoid getting zero as result
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Q4. MYSQL, get second highest salary
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Basic Aptitude Test, general questions were there

Two coding questions were there which would boost to digital profile

Q1. General DBMS questions were there
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Q2. What is polymorphism and OOPs concept
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Polymorphism is the ability of a single function or method to operate on different data types. OOPs concept refers to Object-Oriented Programming principles like inheritance, encapsulation, and abstraction.
• Polymorphism allows a function to take different forms based on the input data type.

• OOPs concept includes inheritance, where a class can inherit properties and methods from another class.

• Encapsulation involves bundli...read more
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Basic math, grammar and simple coding

Q1. Tell me about your self?
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Q2. Why you want to join TCS
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Q1. Tell me about your self
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Q2. Why shift to IT sector
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Q1. What is java find eligible
Ans. 
Java find eligible is a method used to filter elements in a collection based on certain criteria.
• Java find eligible is typically used with streams and lambda expressions.

• It can be used to filter out elements that meet a specific condition.

• For example, finding all employees eligible for a bonus based on their performance ratings.
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Q2. Find java elements in selenium
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Java elements in Selenium can be found using various methods like findElement, findElements, etc.
• Use findElement method to locate a single element in the DOM

• Use findElements method to locate multiple elements in the DOM

• Locate elements by ID, class name, name, tag name, xpath, css selector, etc.
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Reverse string and unique number and fine arrat