Cloud Storage in iOS Swift - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Cloud Storage in mobile app development?

Cloud Storage is a service that lets apps save and retrieve files or data on internet servers instead of the device. It helps keep data safe and accessible from anywhere.

beginner

Name a popular Cloud Storage service used in iOS apps.

Firebase Storage is a popular Cloud Storage service for iOS apps. It allows easy upload and download of files like images and videos.

beginner

Why use Cloud Storage instead of local device storage?

Cloud Storage keeps data safe even if the device is lost or damaged. It also allows sharing data across devices and users easily.

intermediate

What is a common step before uploading a file to Cloud Storage in Swift?

You usually convert the file (like an image) into Data format and then use the Cloud Storage API to upload that data.

intermediate

How can you secure files in Cloud Storage?

You secure files by setting rules and permissions on who can read or write files. For example, Firebase Storage uses security rules to control access.

What does Cloud Storage allow your app to do?

A Delete all local files automatically

B Only save files on the device

C Run the app offline only

D Save files on internet servers

Cloud Storage lets apps save files on internet servers, making them accessible from anywhere.

Which format is commonly used to upload images to Cloud Storage in Swift?

A Data

B String

C UIImage

D Int

Images are converted to Data format before uploading to Cloud Storage.

What is a benefit of using Cloud Storage over local storage?

A Data is lost if device is damaged

B Data can be shared across devices

C Files cannot be accessed online

D It uses more device memory

Cloud Storage allows sharing data across devices and users.

Which service is commonly used for Cloud Storage in iOS apps?

A Firebase Storage

B Core Data

C UserDefaults

D SQLite

Firebase Storage is a popular Cloud Storage service for iOS apps.

How do you control who can access files in Cloud Storage?

A By deleting files regularly

B By storing files locally only

C By setting security rules and permissions

D By using only public URLs

Security rules and permissions control access to files in Cloud Storage.

Explain how Cloud Storage benefits mobile apps compared to local storage.

Think about what happens if a phone is lost or you want to use the app on another device.

Describe the basic steps to upload an image file to Cloud Storage in an iOS app using Swift.

Focus on how the image is prepared and sent to the cloud.