TCS Sde1 Interview Questions and Answers

2 codes and some technical MCQs

Q1. Write program of Pascal Tree
Ans. 
Pascal Tree is a binary tree where each node represents a row of Pascal's Triangle.
• Create a binary tree with root node as 1

• For each level, create left child as previous level's value and right child as previous level's value + parent value

• Repeat until desired number of levels is reached
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Q2. Python language questions
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Q1. Tell me about yourself, relocation and other general HR round questions
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Q1. What is your expected salary?
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Was good and you get questions from various topics.
Apti
Basics of cs

Q1. Tell me about your self
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Q2. Your strengths on technical subjects you have gine
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Q1. Java 8 features
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Q2. Shallow copy and deep copy in java
Ans. 
Shallow copy creates a new object with references to the original object's data, while deep copy creates a new object with copies of the original object's data.
• Shallow copy only duplicates the references to the original object's data, not the data itself.

• Deep copy creates a new object with copies of the original object's data, ensuring that changes to the copied object do not affect the original object.

• In Java, shallow...read more
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Q1. Oops questions asked, all piller of oops, DSA basics
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Ppt and discussion - on all things in the company

Leetcode - 2 medium, 1 hard

Aptitude round consists Logical reasoning, General Aptitude, Grammar related questions etc. All are moderate level questions.

Q1. Explain OOPs w.r.t Java
Ans. 
OOPs is a programming paradigm that uses objects to represent real-world entities. Java is an OOPs language.
• OOPs stands for Object-Oriented Programming System

• Java is a class-based OOPs language

• Encapsulation, Inheritance, Polymorphism, and Abstraction are the four pillars of OOPs

• Objects have state and behavior

• Java supports interfaces, which allow for multiple inheritance

• Example: A car can be represented as an object wit...read more
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Q2. Explain about the projects that you have worked on
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Q3. Explain how Java solves machine dependency of code execution
Ans. 
Java solves machine dependency by using bytecode and virtual machine.
• Java code is compiled into bytecode which is platform-independent

• The bytecode is executed by the Java Virtual Machine (JVM) which is platform-specific

• JVM translates bytecode into machine code for the specific platform

• This allows Java code to run on any platform with a JVM installed

• Example: A Java program compiled on Windows can run on Linux or Mac as
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Q1. Why should we hire you?
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Q2. Tell me about yourself.
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