iOS Development iOS Networking and APIs

Question 1

Which iOS framework is used to make HTTP network requests?

Accepted Answer

URLSession

Answer

URLSession is Apple's modern, built-in framework for performing HTTP and HTTPS requests, downloads, and uploads.

Question 2

What is the purpose of URLRequest in iOS networking?

Accepted Answer

Encapsulates a URL, HTTP method, headers, and body for a network request

Answer

URLRequest is a struct that holds all information needed for a request: URL, HTTP method, headers, and optional body data.

Question 3

What does the `async/await` version of URLSession data task return?

Accepted Answer

(Data, URLResponse)

Answer

The async `URLSession.data(for:)` method returns a tuple of `(Data, URLResponse)` and throws an error on failure.

Question 4

Which HTTP method is used to create a new resource on a REST API?

Accepted Answer

POST

Answer

The HTTP POST method is conventionally used to submit data to a server to create a new resource.

Question 5

What is App Transport Security (ATS) in iOS?

Accepted Answer

A policy that requires apps to use HTTPS for network connections by default

Answer

ATS enforces that all network connections from an iOS app use HTTPS with strong TLS settings unless explicitly exempted.

iOS Development Practice Test