AppInventiv Technologies Interview Questions, Process, and Tips

2 tech round , 1 hr ound

Q1. Event loop ans console statements
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Q2. For loop in js with var let an dconst
Ans. 
The for loop in JavaScript can be used with var, let, and const to iterate over arrays or objects.
• The 'var' keyword declares a variable globally or locally to an entire function regardless of block scope.

• The 'let' keyword declares a block-scoped variable that can be reassigned within the block it was declared.

• The 'const' keyword declares a block-scoped variable that cannot be reassigned or redeclared.
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Q1. What is agile methodology
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Agile methodology is a project management approach that emphasizes flexibility, collaboration, and iterative development.
• Focus on delivering working software in short, iterative cycles

• Embrace changing requirements throughout the project

• Encourage collaboration between cross-functional teams

• Regularly review and adapt processes for continuous improvement
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Q2. Diff. b/w authentication and authorization
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Authentication verifies the identity of a user, while authorization determines what actions a user is allowed to perform.
• Authentication confirms the user's identity through credentials like username and password

• Authorization controls the access rights of authenticated users to specific resources or actions

• Authentication precedes authorization in the security process

• Example: Logging into a system (authentication) vs. ac...read more
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Q3. Cache and cookies
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Q4. Some SQL queries
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Q1. How do you secure your api.
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Q2. What is Json Web Token.
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Q3. What are Microservices.
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Q4. What are joins.
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Q5. 3rd highest salary, 10th hightest salary using TOP, given a string {{[()}} how will we know if brackets are in correct order
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Q6. Swap values of 2 variables without using 3rd variable (I gave both answers using XOR and using arithematic as well)
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Q1. What is the process to remove duplicates from a string?
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50 questions in 1 hour

Q1. Basic questions on OOPs
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Q2. SQL Queries like Insert update What is DDL DML
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Q3. Family Background
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Q4. Question on my Internship
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Q1. Coding questions on Array in any programming language
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Q2. Database Schema Formation
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Q3. Another Coding question on hashmap
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Q4. Some Logical thinking questions
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Q1. Pattern printing question in Java, OOPs concept, basic DSA questions
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Q2. What are android components, name of activity lifecycle methods, name of fragment lifecycle methods, if one goes from 1 activity to another what are the activity lifecycle methods that are called in screen...read more
Ans. 
Android components include activities and fragments, each with their own lifecycle methods. Transitioning from one activity to another triggers specific lifecycle methods in each screen.
• Android components include activities and fragments

• Activity lifecycle methods: onCreate(), onStart(), onResume(), onPause(), onStop(), onDestroy()

• Fragment lifecycle methods: onAttach(), onCreate(), onCreateView(), onActivityCreated(), o...read more
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Q3. Kotlin coroutine questions, Jetpack compose
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Q4. Architechtures like MVP, MVC, MVVM, their difference and when to use them, project related questions.
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Q1. What is json parsing, how to handle team conflicts, agile methodologies, work experience related questions
Ans. 
JSON parsing is the process of converting JSON data into a usable format in programming.
• JSON parsing is essential for retrieving and manipulating data from APIs or databases.

• It involves converting JSON strings into objects or arrays in programming languages like Java or Kotlin.

• Handling team conflicts involves effective communication, active listening, and finding compromises.

• Agile methodologies focus on iterative devel...read more
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Q1. General questions of js, angular
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Q1. Managerial questions
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Q1. Salary negotiation
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