iOS App Developer

Question 1

What is a power feature added in iOS 11 with the use of machine learning?

Accepted Answer

Core ML

Answer

3D Touch

Answer

Face ID

Answer

Background App Refresh

Answer

ARKit

Question 2

What features can you test on your app prior to uploading to the App Store?

Accepted Answer

Push Notifications, data storage using Core Data

Answer

Cloud storage, in-app purchases

Answer

Testing on live devices

Answer

Analytics

Answer

Testing in Simulator

Question 3

What are the most downloaded category on the app store?

Accepted Answer

Games

Answer

Apps

Answer

Books

Answer

Music

Question 4

What can media players do besides play files from a server?

Accepted Answer

Distribute content to users

Answer

Store and manage user data

Answer

Serve ads to users

Answer

Serve advertisements

Answer

Analyze user behavior

Question 5

What does the Command Pattern enable designers to accomplish?

Accepted Answer

Encapsulating all necessary information

Answer

Allowing loosely coupled behavior

Answer

Automating common tasks

Answer

Making code more readable

Question 6

In the Command Pattern, what does the Client create?

Accepted Answer

Concrete Command

Answer

CommandProxy

Answer

Abstract Command

Answer

CommandBuilder

Answer

Service Implementation

Question 7

What is the name of the component that creates and initializes a command?

Accepted Answer

The Client

Answer

The Command Processor

Answer

The Command

Answer

The Server