0.0 00 QUESTION Resources with responses that are ______ for all users are great candidates to be cached by a CDN. variants sized different identical The correct answer is: identical Explanation: Identify which resources can be cached by intermediaries: those with responses that are identical …
0.0 00 QUESTION How can you make the job a lot simpler for the browser? Create more complex CSS Follow the style guide Add more parents Change the selector to a class The correct answer is: Change the selector to a class Explanation: We will …
0.0 00 QUESTION How many times per second do most devices refresh their screens? 60 100 20 35 The correct answer is: 60 Explanation: Most devices today refresh their screens 60 times a second. If there’s an animation or transition running, or the user is …
0.0 00 QUESTION Image information such as location and camera description can often be deleted to reduce image sizes. This type of information is called: GZIP raster metadata vector The correct answer is: metadata Explanation: Remove unnecessary image metadata: many raster images contain unnecessary metadata …
0.0 00 QUESTION What’s the fastest and best-optimized resource? Javascrtipt The one not sent An image Web fonts The correct answer is: The one not sent Explanation: The fastest and best-optimized resource is a resource not sent. You should eliminate unnecessary resources from your application. …
0.0 00 QUESTION How do you prioritize optimization of the mobile site for browser versions or screen resolutions: Prioritize the site with the highest conversion rates Optimize all at the same time Look for the oldest version of your site Look for the highest number …
0.0 00 QUESTION The App shell helps with: Making the full page load faster Creating a fully optimized site Making transitions between pages faster Improves elements of the UX The correct answer is: Making transitions between pages faster Explanation: An application shell is the minimal …
0.0 00 QUESTION Which metric is affected by slow pagespeed? Clickthrough rate Viewthrough rate Conversion rate Impressions The correct answer is: Conversion rate Explanation: Optimizing the critical rendering path allows the browser to paint the page as quickly as possible: faster pages translate into higher …
0.0 00 QUESTION True or false: Mobile pages that load 1 second faster see up to a 27% increase in conversion rate. False True The correct answer is: True Explanation: We will update later. sincerely thank
0.0 00 QUESTION Which of the following is NOT true about site search experience on mobile sites? Users rely on filters to narrow down search results Positioning site search at the top of a mobile page with an open-text search box is a best practice …