Virtusa Consulting Services Android Developer Interview Questions and Answers

Q1. Android Basics on mvvm architecture
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Q2. Navigation Component
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Q3. Jetpack components- work manager, viewmodel
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Q1. Managerial questions
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Q1. Android basics and life cycle
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Q2. Services and AIDL
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Q1. Design patterns and use cases
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Q1. Reason foe change current company
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Seeking new challenges and growth opportunities in a more innovative environment.
• Desire for professional growth

• Seeking new challenges

• Looking for a more innovative environment
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Q1. Basic android questions
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Q2. Services mvvm roomdb and all basic android things
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Basic interview on question like aptitude, javascript, typescript and react-native question

Q1. Basic javascript question in second round
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Q2. What is function currying
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Function currying is a technique in functional programming where a function with multiple arguments is transformed into a sequence of nested functions, each taking a single argument.
• Currying allows you to partially apply a function by fixing a number of arguments, which creates a new function.

• It helps in creating reusable functions and improves code readability.

• Example: const add = (a) => (b) => a + b; const add5 = add
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Q3. What is IIEF where we can use it
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IIFE stands for Immediately Invoked Function Expression, used for creating a function that is executed immediately after it is defined.
• IIFE is used to create a private scope for variables to avoid polluting the global scope.

• It is commonly used in React Native development to encapsulate code and prevent naming conflicts.

• Example: (function() { console.log('IIFE executed'); })();
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Q4. Deeply they ask me closure related question how it's working
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Q5. How call call stack and event loop is working
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Call stack is used to keep track of function calls, while event loop manages asynchronous operations in JavaScript.
• Call stack is a data structure that keeps track of function calls in a program.

• When a function is called, it is added to the top of the call stack. When the function completes, it is removed from the stack.

• Event loop is responsible for managing asynchronous operations in JavaScript, ensuring that they are ...read more
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Q1. Project related discussion only
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Q1. React native hooks
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Q2. Component architecture
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Q1. Javascript programs
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Q2. Coding
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Q1. Explain MVVM and its pros/cons
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MVVM is a design pattern that separates the UI, business logic, and data layers in an iOS application.
• Model: Represents the data and business logic of the application.

• View: Represents the UI components of the application.

• ViewModel: Acts as a mediator between the Model and View, handling the presentation logic and data binding.

• Pros: Separation of concerns, easier to maintain and test, promotes reusability.

• Cons: Increase...read more
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Q2. Multithreading in swift
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Multithreading in Swift allows for concurrent execution of tasks to improve performance and responsiveness.
• Use Grand Central Dispatch (GCD) for managing concurrent tasks

• Avoid blocking the main thread to prevent UI freezes

• Consider using Operation and OperationQueue for more complex task management
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The question about prblm solving

Any presentation or pdf to submit it at any topic or else to explain it

The discussion with my team mate

Q1. Japanese reading and introduce
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Q2. Kanji reading and meaning
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Kanji is a system of Japanese writing using Chinese characters. Each character has a reading and meaning.
• Kanji characters are used in combination with hiragana and katakana to write Japanese.

• There are over 2,000 commonly used kanji characters.

• Each kanji character has at least one reading and one meaning, but some have multiple readings and meanings.

• For example, the kanji character for 'tree' can be read as 'ki' or 'mok
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