iOS App Development Fundamentals

Question 1

What is the third ranked programming language?

Accepted Answer

Python

Answer

While programming language rankings can vary slightly depending on the source (e.g., TIOBE Index, Stack Overflow Developer Survey), Python consistently ranks among the top programming languages globally. It is widely recognized for its versatility, readability, and extensive libraries, often placing in the top three alongside languages like Java and C.

Question 2

What type of devices can run apps created with Swift?

Accepted Answer

IOS devices dating back to iOS 7 or later

Answer

Swift was introduced by Apple in 2014, and apps built with Swift can target a wide range of iOS devices. Specifically, Swift applications are compatible with iOS 7 and later versions, allowing developers to reach a broad user base even on slightly older hardware, as long as the device supports the minimum iOS version required by the app.

Question 3

What is the name of the second most commonly used language for iOS developers?

Accepted Answer

Objective-C

Answer

While Swift is Apple's modern and preferred language for iOS development, Objective-C was the original primary language for iOS and macOS. Many existing applications, frameworks, and legacy codebases are still written in Objective-C. Therefore, iOS developers frequently encounter and need to work with Objective-C, making it the second most commonly used language in the ecosystem.

Question 4

In some cases, developers need to capsulate command execution into separate objects, what is this called?

Accepted Answer

The Command Pattern

Answer

The Command Pattern is a behavioral design pattern that encapsulates a request as an object, thereby allowing for parameterization of clients with different requests, queuing or logging of requests, and support for undoable operations. It decouples the object that invokes the operation from the object that knows how to perform it. This pattern is useful for implementing features like undo/redo functionality, transaction systems, and menu operations.

Question 5

What types of games can be created?

Accepted Answer

Single and multiplayer

Answer

Games, in their fundamental design, can be broadly categorized by the number of players they accommodate. This distinction covers everything from solitary experiences to those involving multiple participants, whether locally or over a network. Therefore, the most encompassing classification for the types of games that can be created is single and multiplayer, as this defines the core interaction model.

iOS Development Practice Test

iOS Development Practice Test

iOS App Development Fundamentals