TCS System Engineer Hardware Interview Questions, Process, and Tips for Experienced

Q1. About previous projects
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Q2. About triggers and joins
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Aptitude questions along with one coding question. you can choose whichever language you are comfortable with

Q1. Basic technical questions . It was a smooth process. Be prepared with basics
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Q2. Prime number code to be written
Ans. 
Code to generate prime numbers in an array
• Create a function to check if a number is prime

• Iterate through numbers and add prime numbers to an array

• Return the array of prime numbers
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Q3. Object Oriented concepts in Java
Ans. 
Object Oriented concepts in Java include classes, objects, inheritance, polymorphism, and encapsulation.
• Classes are blueprints for objects, defining attributes and behaviors.

• Objects are instances of classes, containing data and methods.

• Inheritance allows a class to inherit attributes and methods from another class.

• Polymorphism enables objects to be treated as instances of their parent class.

• Encapsulation restricts acce
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Q4. Explain data encapsulation and data hiding
Ans. 
Data encapsulation is the bundling of data with the methods that operate on that data, while data hiding is the concept of hiding the implementation details of a class from the outside world.
• Data encapsulation bundles data and methods together to protect data from outside interference.

• Data hiding hides the implementation details of a class, allowing only necessary information to be accessed.

• Encapsulation helps in achie...read more
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Q5. Difference between method overriding and overloading
Ans. 
Method overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class, while method overloading is when multiple methods have the same name but different parameters.
• Method overriding involves inheritance and is used to provide a specific implementation of a method in a subclass.

• Method overloading involves having multiple methods with the same name but different...read more
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Aptitude questions were asked of difficulty medium to high

High difficulty coding round

Q1. Questions related to OOPs concenpts were asked
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Q2. Reverse a string
Ans. 
Reverse a string by iterating through the characters and swapping them
• Create a function that takes a string as input

• Initialize two pointers, one at the beginning and one at the end of the string

• Swap the characters at the two pointers and move them towards the center until they meet
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Q1. What is the difference between Protractor and Selenium?
Ans. 
Protractor is a testing framework specifically designed for Angular applications, while Selenium is a more general testing tool for web applications.
• Protractor is built on top of Selenium WebDriver and is optimized for Angular applications

• Protractor has built-in support for Angular-specific locator strategies like ng-model, ng-repeat, etc.

• Selenium is a more versatile tool that can be used for testing any web applicatio
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Q2. Angular JavaScript?
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Q1. What are your reasons for wanting to join TCS?
Ans. 
I am excited about the opportunity to work with a global leader like TCS and contribute to innovative projects.
• TCS is a renowned global company with a strong reputation in the IT industry

• I am impressed by TCS's commitment to innovation and cutting-edge technology

• I believe TCS offers great opportunities for professional growth and development

• I am excited about the chance to work on diverse and challenging projects at TC
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