Which of the following classes handles the editable content of a notification?

Which Messages framework classes is used to display a dynamically-generated list of stickers. which is capable of drag-and-drop functionality?

Which ApplePay JS Data Types showcases the outcome of authorizing a payment request and contains encrypted payment information?

Which classes manages notif‌ication-related activities for an app or app extension?

Which is an object that manages a memory—based data buffer in Grand Central Dispatch (GCD)?

Which event of the Apple Pay JS framework defines the attributes contained by the onshippingmethodselected callback function?

Which method is used to deallocate all the noncritical custom data structure associated with your view controller?

What class can implement Document Objects?

In Objective C, all instance methods are accessors.

Which scenario will not result in NSOperation throwing an exceptions:

What is the effect of using 'weak' in the following @property definition: @property (nonatomic, weak) SomeClass *responder; ?