TCS Associate Systems Engineer Interview Questions, Process, and Tips

It consists of questions we need to get cutoff

3 coding questions atleast one need to be answered perfectly

Q1. Asked about technicals , Java language and python questions it went about 1 hour
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Q2. What is Java and how itis best language and what are the benefits of the language
Ans. 
Java is a high-level programming language known for its portability, security, and versatility.
• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM).

• It is known for its strong security features, such as automatic memory management and built-in exception handling.

• Java is versatile, with a wide range of applications including web development, mobile apps, and enterprise software...read more
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Q3. Explain about inheritance?
Ans. 
Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can access all public and protected members of the base class

• Example: Class 'Car' can inherit from class 'Vehicle'
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Q4. Explain about method overloading?
Ans. 
Method overloading is when multiple methods in a class have the same name but different parameters.
• Allows a class to have multiple methods with the same name but different parameters

• Parameters can differ in number, type, or order

• Compile-time polymorphism

• Example: void print(int a), void print(int a, int b)
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Basics and easy but attempt fast.

2 coding first one is easy and second little bit hard.

Q1. They will ask basics questions from your resume.
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Q2. Difference between c and c++ What is pointer? Introduction Why tcs? your role in project?
Ans. 
Difference between C and C++, pointer definition and usage
• C++ is an object-oriented language while C is procedural

• C++ supports function overloading and templates while C does not

• Pointers are variables that store memory addresses

• Pointers are used for dynamic memory allocation and passing parameters by reference

• Example: int *ptr; // declares a pointer to an integer variable
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English, code - simple and complex

Q1. Code, logic, technical terms
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Q2. Code or logic to blink red and blue bulb alternatively
Ans. 
Code to blink red and blue bulb alternatively
• Use a loop to alternate between turning on and off the red and blue bulbs

• Use a delay function to control the timing of the blinking

• Toggle the state of the bulbs using a boolean variable
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Q1. Introduction, passion towards job, concerns
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I applied through NQT. Apti Test+2 coding qs.

Q1. Basic question regarding project, college exp, Java 8 feature, set vs map, OOPS!
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Q2. Explain Java 8 Feature
Ans. 
Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to pass functionality as an argument to a method.

• Functional interfaces have a single abstract method and can be used with lambda expressions.

• Streams provide a way to work with sequences of elements efficiently.

• Default methods allow interfaces to have method implementation...read more
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Q3. Explain diff -- Set vs Map
Ans. 
Set and Map are both data structures in Java, but Set stores unique elements while Map stores key-value pairs.
• Set does not allow duplicate elements, while Map allows duplicate values but not duplicate keys.

• In Set, elements are stored in an unordered manner, while in Map, key-value pairs are stored.

• Example: Set set = new HashSet<>(); Map map = new HashMap<>();
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Q4. OOPs full concept--all 4 points, class, obj
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Q5. Describe the project in 5 min
Ans. 
Developed a web-based inventory management system for a retail company
• Used Java and Spring framework for backend development

• Implemented responsive design using HTML, CSS, and JavaScript for frontend

• Integrated with third-party APIs for payment processing and order tracking
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Online proctored aptitude test

Q1. Questions on DSA, OOP terminologies, etc
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Q1. Situational questions based on the discussion
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Q1. What is inheritance?
Ans. 
Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.
• Inheritance allows for code reuse and promotes a hierarchical organization of classes.

• The existing class is called the superclass or parent class, while the new class is called the subclass or child class.

• The subclass inherits all the properties and methods of the superclass, and can also...read more
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Q2. What is bubble sort?
Ans. 
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.
• Bubble sort is a comparison-based algorithm.

• It works by comparing each pair of adjacent elements and swapping them if they are in the wrong order.

• It has a worst-case and average-case time complexity of O(n^2).

• Example: [5, 3, 8, 4, 2] -> [3, 5, 4, 2, 8] -> [3, 4, 2, 5
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