AppInventiv Technologies Interview Questions, Process, and Tips

Q1. General blockchain questions
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Q1. General blockchain working technicalities
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Q1. Work ex and DSA
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Q1. How to create and upload release application on android and/or iOS
Ans. 
To create and upload a release application on Android and/or iOS, you need to follow specific steps for each platform.
• For Android, you need to generate a signed APK using Android Studio and then upload it to the Google Play Store.

• For iOS, you need to create an archive in Xcode, validate it, and then distribute it through the App Store Connect.

• Make sure to follow the guidelines and requirements set by Google and Apple f
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Q2. How to integrate third party libraries in project.
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Integrating third party libraries involves adding the library to the project dependencies and configuring it for use.
• Add the library as a dependency in the project's build file (e.g. Gradle, Maven)

• Import the necessary classes or functions from the library in your code

• Configure any necessary settings or initialization code for the library to work properly

• Ensure compatibility with the project's existing codebase and depe...read more
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Q3. React native performance optimisations.
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Q4. Share an experience where you took lead/ownership of an module/feature/bug.
Ans. 
Led a team to develop a new feature for a mobile app
• Identified the need for a new feature based on user feedback

• Created a detailed plan outlining tasks and deadlines

• Assigned tasks to team members based on their strengths

• Regularly communicated with team members to track progress and address any issues

• Conducted testing and gathered feedback to make necessary improvements

• Successfully launched the feature on schedule
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Q5. How to create unit test cases for a module.
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Unit test cases for a module can be created by identifying different scenarios and inputs to test the functionality.
• Identify the different functionalities of the module that need to be tested

• Create test cases for each functionality, including positive and negative scenarios

• Ensure test cases cover edge cases and boundary conditions

• Use testing frameworks like JUnit, NUnit, or pytest to automate the testing process

• Mock de...read more
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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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