Xyz Company Software Developer Interview Questions, Process, and Tips

Two sum problem DSA fromleetcode

Q1. Event Loop, how does event loop work.
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Q2. Lib UV, explain the function of libuv
Ans. 
Libuv is a multi-platform support library with a focus on asynchronous I/O.
• Provides event loop, networking, and file system access APIs

• Supports asynchronous operations for handling I/O events efficiently

• Used in Node.js for handling non-blocking I/O operations
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Q3. Async programming in JS
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Async programming in JS allows for non-blocking operations, improving performance and user experience.
• Use async/await to write asynchronous code in a synchronous manner

• Promises are a common way to handle asynchronous operations

• Callbacks can also be used for async programming, but can lead to callback hell

• Utilize setTimeout and setInterval for delayed and repeated tasks
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Quantitive reasoning

Gender equality,ai v/s human

Q1. Tell me about your self
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Q2. Your skills and experiance
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Q1. Intro your self
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Q2. Please tell me what is oops?
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs focuses on creating objects that interact with each other to solve a problem

• It involves concepts like classes, objects, inheritance, encapsulation, and polymorphism

• Example: In a banking system, a 'BankAccount' class can have objects like 'SavingsAccount' and 'CheckingAccount'
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Q3. What is stream api?
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Q4. How hasmap internally work
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HashMap internally uses an array of linked lists to store key-value pairs, with keys being hashed to determine the index in the array.
• HashMap uses hashing to determine the index of the key in the array.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• HashMap allows null keys and values.

• HashMap is not synchronized, use ConcurrentHashMap for thread-safe operations.
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Q5. How stream is differ between stream api
Ans. 
Stream API is a feature in Java that allows processing collections of objects in a functional style.
• Stream API is used to process collections of objects in a functional style.

• Stream API provides a set of methods to perform operations on the elements of a collection.

• Stream API supports operations like filter, map, reduce, and collect.

• Stream API is part of the java.util.stream package in Java.
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A simple aptitude question on the basics.

Question regarding the maximum of two arrays and the sorting process.

Q1. Basic of python, sql , powerbi
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Q1. What are your salary expectations for this position?
Ans. 
My salary expectations are based on my experience, skills, and the market rate for this position.
• Research the average salary range for Software Developers in the specific location and industry

• Consider your level of experience and skills compared to the job requirements

• Be prepared to negotiate based on the overall compensation package offered
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