TCS System Administrator Interview Questions, Process, and Tips for Freshers

Q1. WHAT ARE FOUR BASIC PRINCIPLES OF OOPS?
Ans. 
Four basic principles of OOPS are encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: bundling of data and methods that manipulate the data within a single unit

• Inheritance: ability of a class to inherit properties and characteristics from a parent class

• Polymorphism: ability of objects to take on multiple forms or have multiple behaviors

• Abstraction: hiding of complex implementation details and provi
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Q2. WHAT IS POLYMORPHISM?
Ans. 
Polymorphism is the ability of an object to take on many forms.
• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• It is achieved through method overloading and method overriding.

• Example: A shape class can have different subclasses like circle, square, triangle, etc. and all can be treated as shapes.

• Polymorphism helps in achieving code reusability and flexibility.
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Q3. WHAT ARE DIFFERENCES AND SIMILARITY BETWEEN C AND C++?
Ans. 
C is a procedural language while C++ is an object-oriented language. C++ is an extension of C.
• C++ supports classes and objects while C does not.

• C++ has better support for polymorphism and inheritance than C.

• C++ has a standard template library (STL) which provides a collection of classes and functions for common programming tasks.

• C++ is more complex than C and requires more knowledge of object-oriented programming conce...read more
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Q1. TELL ME ABOUT YOUR DAILY ROUTINE?
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Q2. WHY SHOULD WE HIRE YOU?
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Q1. Define oops concept , print an array in reverse order, what is os?
Ans. 
Oops concept is a programming paradigm that focuses on objects and their interactions. Printing an array in reverse order involves iterating through the array and printing each element in reverse order. OS stands for Operating System.
• Oops concept involves encapsulation, inheritance, and polymorphism.

• To print an array in reverse order, start from the last element and iterate backwards.

• Operating System is a software that...read more
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Q2. Tell me about yourself, hobbies
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Logical reasoning , English comprehension, maths aptitude

Two coding questions basic programs, opps concept , coding interview

Q1. What Oops concepts polymorphism and encapsulation mean , differentiate them
Ans. 
Polymorphism and encapsulation are two important OOP concepts. Polymorphism allows objects to take on multiple forms, while encapsulation ensures data security.
• Polymorphism allows objects to be treated as if they are of different types, depending on the context in which they are used.

• Encapsulation is the practice of hiding data and methods within a class, so that they cannot be accessed or modified from outside the cla...read more
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Q2. What programming language you know , and can code in ?
Ans. 
I am proficient in Python and can code in Java and C++.
• Proficient in Python, can code in Java and C++

• Experience in developing web applications using Flask and Django frameworks

• Familiarity with data analysis libraries like Pandas and Numpy

• Experience in developing GUI applications using PyQt and Tkinter

• Knowledge of version control systems like Git and SVN
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Technical