Neebal Technologies Software Engineer Trainee Interview Questions and Answers

Q1. Where do you envision yourself in the next five years?
Ans. 
In the next five years, I envision myself leading a team of software engineers, working on cutting-edge technologies, and making significant contributions to the company's success.
• Leading a team of software engineers

• Working on cutting-edge technologies

• Making significant contributions to the company's success
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Q2. What interests you about this job?
Ans. 
I am excited about the opportunity to work on complex software projects and contribute to innovative solutions.
• Opportunity to work on complex software projects

• Contribute to innovative solutions

• Excited about the challenges and learning opportunities
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Q1. What are the various data types available in JavaScript?
Ans. 
Various data types in JavaScript include string, number, boolean, object, array, null, and undefined.
• String: 'hello'

• Number: 42

• Boolean: true or false

• Object: { key: value }

• Array: [1, 2, 3]

• Null: null

• Undefined: undefined
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Q2. What is hoisting in JavaScript?
Ans. 
Hoisting in JavaScript is the behavior where variable and function declarations are moved to the top of their containing scope during the compilation phase.
• Variable declarations are hoisted to the top of their scope, but not their assignments.

• Function declarations are fully hoisted, meaning they can be called before they are declared.

• Hoisting can lead to unexpected behavior if not understood properly.
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Aptitude questions with some basic coding questions

They have given 3 coding questions and some pseudo codings

Q1. Tell about your self
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Q2. Some coding questions
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The problem statement was given to solve.

Q1. Explain liskov substitution principle with examples?
Ans. 
Liskov Substitution Principle states that objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness.
• Subtypes must be substitutable for their base types.

• Derived classes should be able to extend the functionality of base classes without changing their behavior.

• Violating this principle can lead to unexpected behavior in the program.

• Example: If a Square class i...read more
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Q2. Importance of abstraction
Ans. 
Abstraction is crucial in software development to simplify complexity, improve readability, and promote reusability.
• Abstraction helps in hiding unnecessary details and focusing on essential features.

• It allows developers to work at a higher level of understanding without getting bogged down in implementation details.

• Abstraction promotes code reusability by creating modular and reusable components.

• It improves code readab...read more
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Q3. Importance of Unit testing in clean close
Ans. 
Unit testing is crucial in ensuring clean code by verifying the functionality of individual units of code.
• Unit testing helps in identifying bugs and errors early in the development process.

• It ensures that each unit of code works as expected in isolation.

• Unit tests act as documentation for the codebase, making it easier for new developers to understand and modify the code.

• It promotes code reusability and maintainability...read more
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Dsa problems dp and tress problem

Q1. Tell me about your self
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Q2. Projects and intership
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Q1. Types of filters
Ans. 
Types of filters include low-pass, high-pass, band-pass, and band-stop filters.
• Low-pass filter allows frequencies below a certain cutoff frequency to pass through.

• High-pass filter allows frequencies above a certain cutoff frequency to pass through.

• Band-pass filter allows a specific range of frequencies to pass through.

• Band-stop filter blocks a specific range of frequencies from passing through.
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Q1. Project Details
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1. Coin change
2. Valid Parenthesis
3. Bipartite graph question

Q1. Resume based. Find duplicate. Valid Parenthesis. Generate Random id Find max no of random id can be generated
Ans. 
The question involves finding duplicates in an array, validating parentheses, generating random IDs, and determining the maximum number of random IDs that can be generated.
• To find duplicates in an array, you can use a hash set to store unique elements and check for duplicates as you iterate through the array.

• To validate parentheses, you can use a stack data structure to keep track of opening and closing parentheses.

• To ...read more
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Q1. Core questions. LRU cache. Validate invalid BST
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Q1. DP problem which I was unable to solve so rejected.
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