upGrad Mobile Application Developer Interview Questions, Process, and Tips

Q1. What is DispatchQueue ?
Ans. 
DispatchQueue is a class in iOS that manages the execution of tasks serially or concurrently on the main or background threads.
• DispatchQueue is used to manage the execution of tasks asynchronously.

• It can be used to run tasks on the main thread or on a background thread.

• Tasks can be dispatched synchronously or asynchronously.

• Example: DispatchQueue.main.async { // code to run on the main thread }
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Q2. What is Url-session ?
Ans. 
URLSession is a class in iOS that allows you to make network requests and handle responses.
• URLSession is used to create tasks for downloading/uploading data, downloading/uploading files, and streaming data.

• It provides built-in support for authentication, cookies, and caching.

• You can customize URLSession configurations to control things like timeouts, caching policies, and connection limits.
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Asked questions about DSA and the time complexity of the solved question.

Q1. Problem Solving, Data Structure round, 2 questions.
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Q1. Domain specific round
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Q1. Questions based on your previous projects.
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Q1. Salary discussion and joining date confirmation
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Q1. Difference between == and === in JavaScript
Ans. 
The difference between == and === is that == compares values after type coercion while === compares values and types.
• The double equals (==) operator compares values after type coercion.

• The triple equals (===) operator compares values and types.

• Type coercion is the process of converting one data type to another.

• Type coercion can lead to unexpected results.

• For example, 1 == '1' is true because the string '1' is coerced t...read more
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Q1. Event bus, DS question,
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Q1. Discuss about the salary
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