Get Certified in Mobile Sites Assessment Answers

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1 Jan 2018

Get Certified in Mobile Sites Assessment Answers
Mobile Sites Assessment Answers
Mobile Sites Exam Answers

Learn best practices for creating, managing, measuring and optimizing mobile websites. Take the Assessment to earn an Achievement. Click the certification link to take the Mobile Sites exam.

Get certified in mobile sites courses

Win customers with mobile sites
Improve conversions with small, but mighty, mobile site changes
Cut load times with Developer Tools
Identify inefficiencies in the critical rendering path with Developer Tools
Speed up mobile site rendering
Fix issues with critical resources to optimize the critical rendering path
Key metrics for testing your site
Solve speed issues and improve user experience before launching your site
Optimize mobile site transfer size
Get your sites moving by shrinking files and removing unneeded features
Optimize images and fonts
Enhance user experience with optimized images and fonts
Focus on mobile user experience
Create an engaging mobile site through user experience (UX) design
Deliver user-centered mobile experiences
Craft a mobile site that delivers a great user experience
Make mobile sites that drive conversions
Deliver a mobile site that lets users easily convert
Test and optimize mobile experiences
Discover what your users really want with testing
Create super fast sites with AMP
Get your content seen quickly with Accelerated Mobile Pages (AMP)
Create Progressive Web Apps
Learn to build engaging and reliable Progressive Web Apps
Engage users with APIs
Increase user engagement and conversions with new mobile web APIs

1.) A webpage appears to hang for several seconds before anything appears on screen. Which of the following steps is likely to help reduce load times?

Set inessential script files to load after the page body.
Place image and script files close together in the HTML.
Disable Chrome Developer Tools, as the software can create slowdown in the critical rendering path.
Elimate any use of JavaScript to “lazy load” files.

2.) What AMP tool is a proxy-based content delivery network for delivering all valid AMP documents?

Google AMP Cache
Google Cache Checker
AMP JavaScript library
Google AMP Validator

3.) Which of the following is a feature enabled by the Service Worker API?

Enabling a Progressive Web App to synchronize with the server and send push messages in the background
Enabling a Progressive Web App to run JavaScript files more efficiently
Enabling a Progressive Web App to access most common mobile OS services, such as volume controls, screen brightness, and voice recording
Enabling a Progressive Web App to run asynchronously with other Progressive Web Apps

4.) You want to explain to your boss why the company should invest in mobile site optimization and improvement. What should you say?

“More customers finding and using our mobile site directly correlates to increased revenue.”
“Mobile site improvement slows down our site leading to a higher quality mobile experience.”
“Improving our mobile site leads to better quality of rich-media assets.”
“Mobile optimization leads to decreased advertising spend and higher user engagement.”

5.) A mobile travel agency website is considering developing a Progressive Web App. Which of the following is a potential benefit of a Progressive Web App versus a mobile webpage?

Customers can quickly make travel bookings even in areas with poor network conditions.
The travel agency will gain added visibility by placing their Progressive Web App in app stores.
Push notifications allow the agency to schedule automatic updates, ensuring customers get the latest deals.
Because Progressive Web Apps support large image and movie files, the agency can better exhibit exotic locations.

6.) How can you design your website’s menus to optimize the experience for mobile users?

Prioritize and display the fewest possible options.
Be comprehensive and display as many options as possible.
Display the least-used menu options.
Only include options that link to your promotions.

7.) What kinds of images are resolution- and scale-independent?

Vector images
Raster images
JPG images
Large images

8.) You’re the technical lead for a major online retailer. One particular element of your company’s page is slowing site performance down significantly. What should you ask your website’s stakeholders to verify that this is a necessary feature?

Is this element essential for our site?
How long has this feature been in place?
How much does the CEO like this feature?
Do you know who created this feature?

9.) How do you redesign your site to incorporate mobile user experience design principles?

Streamline conversion flow.
Increase homepage navigation complexity.
Provide full-screen, brightly colored imagery.
Hide certain usability features, such as a search bar.

10.) Mobile users judge a site’s search function based on what criteria?

The results returned first
The placement and behavior of the logo
If it can guess their demographic details
The quality of the call-to-action

11.) What tool can you use to measure mobile website performance on a desktop computer?

Chrome Developer Tools
Android emulator
Scalable vector graphics
Speed Index

12.) What webpage metric is a score based on the average time at which visible parts of the page are displayed?

Speed Index
Total requests
Page weight
Request weight

13.) Sally is optimizing a very large and complex website. What action can she take to optimize font performance?

Subset fonts to deliver just the glyphs a page requires.
Use as many fonts and font variants as possible.
Provide fonts in one format only.
Ensure that the default “lazy loading” is on.

14.) To reduce the frustration of mobile users in filling out a registration form, Roger from Sports Gear makes what kind of optimization to his mobile form?

Perform validation on input fields in real-time.
Validation is performed after the form is submitted.
As many free-form text entry fields as possible are used.
Number entry fields always use the full keyboard.

15.) A bank is developing a Progressive Web App. Which of the following would be an effective use of push notifications?

Notify mobile users of a withdrawal over a specified limit.
Send hourly reminders of new credit card offerings.
Provide more efficient checkout for mobile users ordering checks and other services.
Allow mobile users to securely submit credit card information with a single click.

16.) How can you prevent the impact of external factors in an A/B test?

Limit the experiment to similar times of day and target a specific audience.
Never deliver a new version of your mobile site.
Deliver the same version of your site to both audiences.
Expand the experiment to include users who have no interest in your brand.

17.) A webpage with several menu animations performs poorly, even on the latest mobile phone. Which of the following is a likely cause of the slowdown?

The animations force the browser to recalculate (or reflow) layout.
The menu occupies a percentage, rather than fixed width, of the screen.
Menu animations that are fluid in portrait mode slow down in landscape mode.
Several CSS font styles have been applied to the menu text.

18.) What is the most likely indicator of a simple, text-only webpage taking a long time to load, even in optimal network conditions?

The DOMContentLoaded value is five seconds.
The list of loaded assets is over 10 items long.
Throttling is set to “WIFI.”
The timeline shows that a “Recalculate Style” event triggered.

19.) To optimize the cache lifetime, what action should you perform?

Determine the appropriate max-age for each resource.
Ensure URLs are case sensitive.
Deliver the resource as a separate file.
Deliver optimized resources for each browser.

20.) The Payment Request API offers which of the following benefits to mobile users?

A one-tap checkout experience by bypassing the usual address and billing forms
Allows mobile users to buy now, pay later
Issues push notifications reminding users of overdue payments on goods and services
Creates shortened, mobile-friendly versions of credit card numbers and addresses

21.) Jessica is analyzing the results of the A/B test for her redesign of the DinoWorld mobile site. The bounce rate for one particular mobile device is significantly higher than all the rest. What does this indicate?

The site may not function correctly on that device.
The device attracts users who may not like DinoWorld.
The device’s users require a high level of personalization.
The device’s users require a smaller, less prominent search bar.

22.) What is a common cause of mobile user frustration and, frequently, site abandonment?

Slow mobile page load speed
Mobile site search functionality
Location trackers
Simple site navigation

23.) Roger is your typical mobile site user. He loves mobile sites, but is extremely frustrated by what behavior?

Sites that require him to zoom in and out
Sites that only use mobile optimized pages
Sites that ask for his location and make clear why they are requesting it
Sites that let him choose between a “desktop site” and a “mobile site”

24.) Which term describes the stage in which the browser relates interpreted HTML and CSS documents to display a webpage?

The render tree
The Document Object Model (DOM)
The CSS Object Model (CSSOM)
Parsing

25.) How does the application (app) shell of a Progressive Web App (PWA) improve performance in poor network conditions?

The app shell stores (caches) the key user interface elements on the mobile device.
The app shell runs in the background, allowing it to pre-load dynamic content for faster performance.
The app shell is a widely accepted standard that allows PWAs to be downloaded directly from a mobile website.
The app shell runs key JavaScript files, which can be used in place of dynamic content normally downloaded over a network.

26.) What is Google’s recommended mobile site design configuration?

Responsive web design
Dynamic serving
Separate URLs
Repetitive web design

27.) A client reports issues viewing their site on a popular mobile phone, but it appears fine on a different device. What should be your first tool to diagnose this?

Device emulation
Explore Impaired networks
Android test
Browser test

28.) Enabling users to place an order on your site without registering provides what kind of opportunity for mobile users?

To develop loyalty to a new brand
To avoid detection
To gain discounts
To purchase from many different brands

29.) Which element is removed from a minified HTML file in order to compress data?

Whitespace
CSS declarations
Div tags
Scripts

30.) When an AMP page downloads images, which images are most likely to be downloaded first?

Images above the fold
Images in the page’s footer
Images that are least likely to be seen
The logo, no matter where it is located on the page

31.) A webpage featuring many large images takes a long time to load. Which of the following is most likely to improve load times?

Run images through a compression tool.
Ensure images are in an uncompressed bitmap format.
Set critical assets to download as late as possible.
Decrease server roundtrips by combining small images into a single, large image file.