- How are UNUserNotificationCenter and NotificationCenter different?
a) One is responsible for showing notifications to users, and the other is a mechanism to send notifications about events inside an app.
b) One is supported on iOS 9 and below, while the other is supported on iOS 10 and above.
c) They are the same.
- What kinds of notifications can you send to a user?
a) Push notifications and local notifications.
b) Push notifications and scheduled notifications.
c) Push notifications.
- What are provisional notifications?
a) Special notifications that provide critical information to users.
b) Notifications that are encrypted.
c) Notifications that are delivered to the user quietly, so they can preview the notifications your app will send.
- How does iOS group notifications?
a) It uses the thread identifier from the notification content and the app that the notification belongs to.
b) By thread identifier only.
c) By notification category.
- What does a Notification Service Extension do?
a) It implements end-to-end encryption.
b) It allows you to add custom action handlers.
c) It allows you to replace a notification's contents before the user sees it.
- What does a notification content extension do?
a) It allows you to add custom action handlers.
b) It allows you to create a custom interface for when a user 3D-Touches a notification.
c) It implements end-to-end encryption.