AQM Technologies Full Stack Developer Interview Questions and Answers

One question on Java strings and another on React

Q1. Context api, js related qstns, simple programming qstn,
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Q2. Remove duplicates without using set.
Ans. 
Remove duplicates from array of strings without using set.
• Iterate through the array and compare each element with all other elements to find duplicates.

• Create a new array and add elements only if they are not already present in the new array.
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Q1. Java Basic questions, Design Patterns, HashMap, ConcurrentHashMap.
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Q2. Kafka, Springboot annotations, Hibernate, Entities relations, Dependency Injections
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Q3. Angular Observables, Pipes, Authentications, Lazy Loading.
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Q4. SQL grouby,having query. DSA on collections, streams methods
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Q1. Project discussions, Unit testings, scrums, agile etc corporate related stuffs
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Q2. Challenges faced, If you want any leaves this year, any marriage or something like w.t.f!!!
Ans. 
I faced various challenges in projects, including tight deadlines and team dynamics, but I have no planned leaves this year.
• Tight deadlines: In a recent project, we had to deliver a complex feature in just two weeks, which required effective time management and prioritization.

• Team dynamics: I once worked with a team where communication was lacking, leading to misunderstandings. I initiated regular stand-up meetings to ...read more
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Q1. Why switching, Asia's largest healthcare domain compay, Billions of evaluations, But cannot even provide 12LPA+ for 3Y+
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Q2. Again asked if there is any leaves required like marriage, they are in healthcare domain and they just provide 4L insurance lol!!!
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Q1. Difference between authentication and authorization
Ans. 
Authentication verifies the identity of a user, while authorization determines what a user can access.
• Authentication confirms the user's identity through credentials like passwords or biometrics

• Authorization controls the user's access to resources or features based on their identity and permissions

• Example: Logging into a website with a username and password is authentication, while being able to view/edit specific page...read more
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Q2. What is promises
Ans. 
Promises are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.
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Q3. What is rxjs and its uses
Ans. 
RxJS is a library for reactive programming using Observables to handle asynchronous data streams.
• RxJS stands for Reactive Extensions for JavaScript.

• It allows you to work with asynchronous data streams and handle events.

• RxJS provides operators to transform, filter, combine, and create observables.

• Example: Using RxJS to handle user input events in a web application.
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Q1. Question related to C#
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