Enfec Technologies Senior IOS Developer Interview Questions and Answers

Q1. Explain application states
Ans. 
Application states refer to the different stages an application can be in, such as active, inactive, background, suspended, and terminated.
• Active state: when the app is currently running and in the foreground

• Inactive state: when the app is running in the foreground but not receiving events

• Background state: when the app is in the background and executing code

• Suspended state: when the app is in the background but not exe...read more
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Q2. Difference between MVC and MVVM
Ans. 
MVC focuses on separating data, presentation, and logic. MVVM adds a ViewModel to handle communication between Model and View.
• MVC stands for Model-View-Controller, where Model represents data, View represents UI, and Controller handles user input and updates the Model and View accordingly.

• MVVM stands for Model-View-ViewModel, where ViewModel acts as an intermediary between Model and View, handling data binding and comm...read more
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