Google Mobile Sites Certification Exam Questions and Answers

1. Which of the following statements is true about the mobile experience of users?
   1. Users are willing to accept longer load times for high-resolution images
   2. It’s important to show as much information as possible on the visible part of a mobile site
   3. It’s important to show a prominent “Full site” label on a mobile site
   4. it’s important to use call-to-action buttons to keep users in the same browser window
   100% Correct Answer
2. Which of the following is NOT a best practice to optimize forms on mobile?
   1. Exposing options instead of using a drop-down menu
   2. Using a real-time validation for errors in forms
   3. Offering users a numerical keyboard for telephone number field
   4. Showing labels inside form fields for convenience
   100% Correct Answer
3. What makes a notification good?
   1. it is relevant
   2. It delivers in the background
   3. It has a default action
   4. It can be dismissed
   100% Correct Answer
4. Keeping CSS independent of HTML allows us to treat_______and _______as separate concerns.
   1. user experience; speed
   2. analytics; optimization
   3. content; design
   4. images; articles
   100% Correct Answer
5. What performance metrics are affected by slow pagespeed?
   1. Conversion rate
   2. Clickthrough rate
   3. Viewthrough rate
   4. Impressions
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6. If you’re in an animation like scrolling, you should ideally be looking to keep your JavaScript to something in the region of ______. Any longer than that and you risk taking up too much time.
   1. 5 – 6ms
   2. 3 – 4ms
   3. 9 – 10ms
   4. 7 – 8ms
   100% Correct Answer
7. Which is the best way to discover and prioritize landing pages for UX improvement potential?
   1. Checking All Pages Report focusing on Average Time on Page metric
   2. Checking All Pages Report focusing on Unique Page Views metric
   3. Checking Exit Pages Report focusing on Page Views metric
   4. Checking Landing Pages Report focusing on Bounce Rate metric
   100% Correct Answer
8. Which is true about calls-to-action usage on mobile homepages?
   1. Use only menus
   2. Keep call to action on the second page
   3. Calls-to-action should be prominent on the visible area of the mobile homepage
   4. Same calls-to-action should be used both on mobile and desktop sites
   100% Correct Answer
9. What is it that the App shell helps with
   1. Creating a fully optimized site
   2. Improves elements of the UX
   3. Making transitions between pages faster
   4. Making the full page load faster
   100% Correct Answer
10. Which of these features is part of a Progressive Web App?
    1. Add to home screen
    2. Location API
    3. UX API
    4. Call API
    100% Correct Answer
11. Which is NOT true about Responsive Sites?
    1. Responsive Sites usually have faster load times vs Separate (m.dot) Sites
    2. Responsive Sites are easier to maintain
    3. Responsive Sites are cost-effective
    4. Responsive Sites have one codebase, deployment and URL
    100% Correct Answer
12. Google Optimize does NOT currently allow you to:
    1. use your existing goals and metrics in Google Analytics as experiment objectives
    2. do heatmap analysis to better understand to user behaviour on your site
    3. test new website designs, layouts and content with a subset of your visitors
    4. serve experiments to specific groups of users that you’ve defined as Audiences in Google Analytics
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13. Before introducing mobile site design best practices to your clients, you should examine their.
    1. existing mobile sites
    2. staffing and budget
    3. page speed scores
    4. design process
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14. What’s the fastest and best-optimized resource?
    1. Javascript
    2. Web fonts
    3. The one not sent
    4. An image
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15. True or false: Using a mix of desktop and mobile-optimized pages on mobile sites improves the user experience since some users are more familiar with the desktop version of the site.
    1. TRUE
    2. FALSE
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16. To optimize for speed, you shouldn’t use too many webfonts and you should minimize the number of _____.
    1. dingbats
    2. ligatures
    3. descenders
    4. variants
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17. Why do CSS @imports harm performance?
    1. @import loads files less efficiently than <link>
    2. They create a less efficient CSSOM
    3. They can introduce unwanted dependencies
    4. They require additional CPU time to parse
    100% Correct Answer
18. Why did Facebook create “2G Tuesdays”?
    1. Facebook didn’t create “2G Tuesdays”
    2. To run a random experiment
    3. To understand how people on 2G use their product
    4. Most users are on 2G
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19. True or false: You can experiment with Google Analytics features by using the Google Merchandise Store demo account.
    1. TRUE
    2. FALSE
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20. At a minimum, what page weight should you be aiming for?
    1. More than 3MB
    2. 2.1MB
    3. 2MB
    4. Less than 1MB
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21. Which most accurately describes the purpose of compression?
    1. Combining files
    2. Minimizing file size
    3. Fitting more into the cache
    4. Making the code faster
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22. At a minimum, what Speed Index score should you be aiming for?
    1. Within 10% of similar sites
    2. Less than 5000
    3. Greater than 5000
    4. Greater than 95%
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23. What is a tool that you can use to emulate and simulate a site that’s experiencing poor or unreliable connectivity?
    1. Pingdom.com
    2. Speedtest.net
    3. Webpagetest.org
    4. Speedguide.net
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24. True or false: To instruct the browser to use the default device width, you would use <meta name="viewport" content="width=device-width">.
    1. FALSE
    2. TRUE
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25. AMP ______ the page ______ waiting for resources to download:
    1. lays out; without
    2. caches; before
    3. indexes; while
    4. displays; after
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26. For each font on your website you should:
    1. Minimize the number of used variants.
    2. Add CSS
    3. Make sure to add as many as possible
    4. Minimize the HTML
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27. When using Chrome devtools, what should you limit the connectivity to?
    1. Regular 3G
    2. Regular 4G
    3. Regular 2G
    4. No Throttling
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28. Which changes to “geometric properties” affect the layout?
    1. Top
    2. All of the above
    3. Heights
    4. Widths
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29. Which of the following is NOT a best practice for a financial company to keep users from dropping out of the funnel?
    1. Letting users convert as a guest
    2. Remembering and prefilling preferences of registered users in forms
    3. Asking for registration to use the site
    4. Using click-to-call buttons for complicated forms or complex tasks
    100% Correct Answer
30. Why can lie-fie result in a poor experience?
    1. It uses more data
    2. It is less secure than WiFi
    3. Some assets might not be loaded
    4. Enabling WiFi reduces battery life
    100% Correct Answer
31. Which of the following describes an App shell?
    1. It comprises of all page elements which are dependant of the specific page contents
    2. None
    3. It discourages caching of content that overlaps across pages of the website
    4. It provides a fast first impression gracefully transitioning to a fully loaded page
    100% Correct Answer
32. Which describes how a Service Worker operates?
    1. It doesn’t handle network requests coming from the navigation on the website
    2. None of these answer options describe a Service Worker
    3. It runs a programmable network proxy
    4. It can be used only when the user is browsing the website
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33. What does “Variant A” in A/B Testing usually represent?
    1. Original version of the web page
    2. Test version of the web page that is modified from the original
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34. Which of these are NOT part of AMP:
    1. Analytics
    2. Custom Fonts
    3. Inline CSS
    4. AMP HTML
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35. True or false: JavaScript can block DOM construction unless explicitly declared as async.
    1. TRUE
    2. FALSE
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36. The render tree contains:
    1. content of the page
    2. the styles of the page
    3. the DOM
    4. visible content
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37. According to a Google poll, what is the top frustration when users browse the web on their mobile device?
    1. Watching a video
    2. Being shown interstitials
    3. Waiting for slow pages to load
    4. Not knowing where to click
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38. Which allows for efficient font reuse between pages?
    1. WOFF2 fonts
    2. The local() directive
    3. Revalidation token
    4. The font matching algorithm
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39. The first step to optimize the critical rendering path is:
    1. minimize number of critical resources: eliminate them, defer their download, mark them as async, and so on
    2. optimize the order in which the remaining critical resources are loaded: download all critical assets as early as possible to shorten the critical path length.
    3. optimize the number of critical bytes to reduce the download time (number of roundtrips)
    4. analyze and characterize your critical path: number of resources, bytes, length.
    100% Correct Answer
40. A Progressive Web App:
    1. slows experience and therefore decreases advertisers conversion rate
    2. is the same as Accelerated Mobile Page
    3. needs high bandwidth environments
    4. works even with unreliable network through service worker
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41. In the layout step, the browser:
    1. displays the on-screen elements in their new positions
    2. first resizes elements before computing their position
    3. computes the size and position of render tree elements
    4. forces the DOM to be rebuilt
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42. Which components often account for most of the downloaded bytes on a web page?
    1. Images
    2. Fonts
    3. Articles
    4. JavaScript
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43. Research shows that mobile users expect to:
    1. tap the logo at the top of a mobile page to take them to new products
    2. see the logo below the fold on mobile sites
    3. tap the logo at the top of a mobile page to take them back to the homepage
    4. tap the logo at the top of a mobile page to take them to a “Contact Us” page
    100% Correct Answer
44. Some users are not comfortable converting on their mobile device. What could be an action you can take to improve their experience?
    1. Showing the desktop version of the site on mobile devices
    2. Offering secondary call-to-action buttons, like social sharing
    3. Asking the user to register to save their details
    4. Making your primary call-to-action buttons more prominent
    100% Correct Answer
45. How can you make the job a lot simpler for the browser?
    1. Change the selector to a class
    2. Create more complex CSS
    3. Add more parents
    4. Follow the style guide
    100% Correct Answer
46. Image _____ can be sacrificed to reduce the file size, and chances are the user will still like the resulting image.
    1. rendering speed
    2. color range
    3. quality
    4. compression
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47. Which of these should be minimized to deliver the fastest possible time to firstrender?
    1. The number of critical HTML classes
    2. The number of CSS classes
    3. The number of critical JavaScript functions
    4. The number of critical resources
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48. Which is an example of a situation when an unnecessary resource negatively impacts the user experience.
    1. Optimized images
    2. One web font
    3. A photo carousel on the homepage that allows the visitor to preview multiple photos with a quick click
    4. Lazy loading
    100% Correct Answer
49. True or false: Mobile pages that load 1s faster see up to a 27% increase in CvR.
    1. FALSE
    2. TRUE
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50. What is a benefit of mobile site over an app for businesses?
    1. Mobile sites only work on Android
    2. You have to build a separate site for tablets and phones
    3. Shorter development timelines. Mobile sites allow for easy updating (for example, users don’t need to accept or install your updates.
    4. Mobile sites require approvals before one can gain access
    100% Correct Answer
51. In which of the following situations can a high bounce rate be interpreted as a good metric?
    1. Campaign landing page brings the user to a page where the company promotes their phone number to receive calls
    2. Campaign landing page brings the user to the first step of a 3-step lead generation form
    3. Campaign landing page brings the user to the product detail page
    100% Correct Answer
52. True or false: Constructing the DOM requires style information.
    1. TRUE
    2. FALSE
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53. Which format is preferred for the multi-device and high-resolution icons?
    1. Vector (SVG)
    2. PNG
    3. Data URLs
    4. JPEG
    100% Correct Answer
54. Resources with responses that are ______ for all users are great candidates to be cached by a CDN.
    1. identical
    2. different
    3. sized
    4. variants
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55. Before the browser can render the page, it needs to construct the:
    1. HTML and JavaScript
    2. DOM and CSSOM trees
    3. Pixel pipeline
    4. UX trees
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56. How do you prioritize optimization of the mobile site for browser versions or screen resolutions:
    1. Prioritize the site with the highest conversion rates
    2. Look for the highest number of sessions and lowest conversion rates (or highest bounce rates)
    3. Look for the oldest version of your site
    4. Optimize all at the same time
    100% Correct Answer
57. Image information such as location and camera description can often be deleted to reduce image sizes. This type of information is called:
    1. GZIP
    2. metadata
    3. vector
    4. raster
    100% Correct Answer
58. Mobile sites:
    1. are accessed through the desktop device’s web browser
    2. need to be downloaded or installed to a device
    3. have specific functionality for mobile devices
    4. require approvals to access
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59. What is a valid event for a Service Worker to emit when it’s registered?
    1. Stop
    2. Canceled
    3. Idle
    4. Install
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60. Which of the following is NOT true about site search experience on mobile sites?
    1. Users rely on filters to narrow down search results
    2. Positioning site search at the top of a mobile page with an open-text search box is a best practice
    3. Comprehensive search results are better than concise results
    4. Smart-search features like auto-complete and corrected misspelling are especially important to have on small screens
    100% Correct Answer
61. True or false: Images should never change when rotating a device screen or between different device sizes.
    1. FALSE
    2. TRUE
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62. Which of the following describes the Payment API correctly?
    1. It bypasses the checkout form
    2. It requires a phone with a fingerprint reader
    3. It replaces your payment processor
    4. It is designed for external card readers
    100% Correct Answer
63. Why are push notifications important for advertisers?
    1. The information they deliver can be acted on immediately
    2. They give users the opportunity to re-engage with content they are interested in
    3. All of the answer options are correct
    4. They deliver timely updates to users
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64. When referring to the critical rendering path in site performance, a critical resource is:
    1. any resource that returns 404
    2. a resource that could block initial display of the page
    3. any resource that must be loaded
    4. a resource that takes more than 500ms to load
    100% Correct Answer
65. True or false: A/B testing allows you to test two or more elements on the site to understand their effects on each other
    1. FALSE
    2. TRUE
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66. Which of the following reports in Google Analytics helps you to identify leakages from the conversion funnel?
    1. Product Performance Report
    2. Checkout Behavior Analysis Report
    3. Device Usage Report
    4. Top Landing Pages Report
    100% Correct Answer
67. How many times per second do most devices refresh their screens?
    1. 20
    2. 35
    3. 100
    4. 60
    100% Correct Answer
68. How does AMP work?
    1. Doesn’t let extension mechanisms block rendering
    2. Keeps all third-party JavaScript out of the critical path
    3. All of the above
    4. Allows only asynchronous scripts
    100% Correct Answer