What do you mean by latent and masked defect?

Latent defect: Latent defect is a defect which is not found for a long time i.e. the defect is discovered now even though it existed way before the present version.

Masked defect: Masked defect is a defect in which a defect is hiding another defect.

Difference between mobile application testing and web application testing

Mobile application testing	Web application testing
- Testing is carried out by installing a executable file i.e. .apk for android and .iPa for iOS	- Testing is carried out on a URL over the internet on a browser
- Testing in different devices with different resolution	- Testing on different browsers with different resolution to check the responsiveness
- Testing in different network - 4G, 3G, 2G and Wifi	- Testing on broadband connection and Wifi connection
- Testing on Different OS - iOS and Android	- Testing on different OS - Windows 10, Windows 8, Windows 7, Mac
- Testing notifications, install uninstall application, test for battery consumption, test for memory consumption and leaks, interruption of calls and SMS
- Test for network disconnections and check if proper errors are shown
- User interaction can be from single tap to multiple taps	- User interaction is mainly using Keyboard and Mouse