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

• All of these answers are incorrect. You should learn the courses in Adwords Academy, and you might be able to answer them correctly. Good luck!

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

  1.  Google AMP Cache
  2.  Google Cache Checker
  3.  AMP JavaScript library
  4.  Google AMP Validator

• I2. Which element is removed from a minified HTML file in order to compress data?

  1.  Whitespace
  2.  CSS declarations
  3.  Div tags
  4.  Scripts

• A3. A bank is developing a Progressive Web App. Which of the following would be an effective use of push notifications?

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

• E4. Enabling users to place an order on your site without registering provides what kind of opportunity for mobile users?

  1.  To develop loyalty to a new brand
  2.  To avoid detection
  3.  To gain discounts
  4.  To purchase from many different brands

• H5. Sally is optimizing a very large and complex website. What action can she take to optimize font performance?

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

• M6. You want to explain to your boss why the company should invest in mobile site optimization and improvement. What should you say?

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

• B7. How does the application (app) shell of a Progressive Web App (PWA) improve performance in poor network conditions?

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

• G8. How do you redesign your site to incorporate mobile user experience design principles?

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

• B9. Which of the following is a feature enabled by the Service Worker API?

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

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

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

Answer

•  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 synchronize with the server and send push messages in the background
•  Enabling a Progressive Web App to run asynchronously with other Progressive Web Apps

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

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

Answer

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

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

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

Answer

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

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?

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?

Answer

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

What kinds of images are resolution- and scale-independent?

What kinds of images are resolution- and scale-independent?

Answer

•  Vector images
•  Raster images
•  Large images
•  JPG images

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?

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?

Answer

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