You create a canvas app and want to add offline capabilities. 
Please select all correct statements about a configuration of offline functionality.

Answer options:

A.You can use canvas apps offline functionality in a web browser and mobile app
B.You need to use a Collection to store data
C.You need to use the LoadOnStart function to restore data from a local cache
D.You need to use the SaveData function to store data to a local cache

Correct Answers: B and D 
You can add offline functionality to the canvas apps. It will work only for the apps that run on mobile devices using Power Apps Mobile. The offline functionality uses local storage on the device. Canvas apps running in a web browser on any device cannot utilize the offline functionality. The offline capabilities implementation uses the Collection (local cache) and two functions, LoadData and SaveData.
Option A is incorrect because you cannot use the offline functionality of the canvas apps in a web browser, only on a mobile device using Power Apps Mobile.
Option C is incorrect because you need to use the OnStart property for loading data from the Collection by LoadData function. There is no LoadOnStart function.
For more information about canvas apps offline capabilities, please visit the below URL: 

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/offline-apps