Creating Mobile Apps with HTML5

What are the basic building blocks of computer graphics?

A. Pixels
B. SVG
C. Circles
D. Image formats

Which type of graphics can increase in size without a decrease in resolution?

A. Raster graphics
B. Vector graphics
C. Full-color graphics
D. Photographic graphics

Which type of compression reduces file size by decreasing the level of detail of the image?

A. Lossless
B. Raster
C. Vector
D. Lossy

Which image format is best for compressing a highly detailed photograph?

A. SVG, which is a vector graphic format
B. GIF, which uses lossless compression
C. JPEG, which uses lossy compression
D. SMIL

How does SVG store data about images?

A. As JavaScript
B. As HTML
C. As CSS
D. As XML

What's a device-independent pixel?

A. Physical dots of light on the device screen
B. A pixel that's always the same color
C. A pixel that's always the same size
D. The variable-sized pixels (also known as dots and points) that CSS uses

What's the correct name for the area of the browser where content displays?

A. Address bar
B. Status bar
C. Alert box
D. Viewport

What's the name of the HTML meta tag that you'd use to adjust the viewport?

A. viewport
B. apple-touch-icon
C. apple-mobile-web-app-capable
D. apple-mobile-web-app-status-bar-style

What meta tag can you use on iOS to open a Web app in full-screen mode?

A. apple-mobile-web-app-set-status-bar-style
B. apple-mobile-web-app-capable
C. description
D. viewport

Touching the screen triggers which touch event?

A. touchstart
B. touchcancel
C. touchend
D. touchmove

How does caching improve performance?

A. By increasing the speed of a device's internet connection
B. By reducing latency
C. By increasing processor speed
D. By increasing latency

What is performance tuning?

A. Determining whether an app functions the way it's supposed to.
B. Writing clear, unambiguous, easy-to-follow instructions on how to use an app.
C. Optimizing an app's use of resources to improve performance
D. writing a document that describes what an app should do and how it should perform

What is perceived speed?

A. The speed of a user's Internet connection
B. The waiting time between events in an app
C. How fast the app feels to the user
D. The actual processor speed of a device

Which tool can you use to get recommendations on ways to improve the performance of a Web app?

A. Profiles
B. Audits
C. Console
D. Scripts

How does loading JavaScript last (instead of first) improve perceived speed?

A. By causing the browser to display the page before the JavaScript finishes loading
B. By reducing the amount of code that must be loaded
C. By making the JavaScript load faster
D. By increasing the processor speed of the user's device

Why are app stores important?

A. They simplify the process of distributing apps and accepting payment for them
B. They provide a way for developers to list and sell HTML5 Web apps on the biggest, best-known app stores
C. They make it possible to convert Web apps to native apps
D. They enable Web apps to use device functionality, such as the compass

What is the official name of the PhoneGap open source project?

A. Nitobi
B. Cordova
C. Adobe
D. PhoneGap Build

What languages can you use for building PhoneGap apps?

A. HTML, CSS, and JavaScript
B. Perl, ASP.NET, and PHP
C. XCode and JavaScript
D. Objective C

How does PhoneGap generate native apps for multiple operating systems?

A. It wraps your HTML5 code with a native wrapper for each platform
B. It uses the native code that you write to create apps for each platform
C. It requires you to create a native app wrapper for each platform
D. It writes your Web app with HTML5, CSS, and JavaScript

Where will a native PhoneGap app for iOS run?

A. Only on iOS
B. On iOS and on Android
C. On iOS and in a Web browser
D. On any mobile device