Tags google certification questions and answers

Why do CSS @imports harm performance?

Below is the answer for the question why do CSS @imports harm performance? Why do CSS @imports harm performance? They can introduce unwanted dependencies They create a less efficient CSSOM @import loads files less efficiently than <link> ✅ They require additional CPU time to parse correct answer

Which format is preferred for the multi-device and high-resolution icons?

Below is the answer and explanation for the question which format is preferred for the multi-device and high-resolution icons? Which format is preferred for the multi-device and high-resolution icons? PNG Vector (SVG) ✅ Data URLs JPEG correct answer Vector (SVG) ✅ explanation

Before the browser can render the page, it needs to construct the:

Below is the answer and explanation for the question before the browser can render the page, it needs to construct the: Before the browser can render the page, it needs to construct the: Pixel pipeline DOM and CSSOM trees ✅ UX trees HTML and JavaScript correct answer DOM and CSSOM trees ✅

To deliver the fastest possible time to first render, you should minimize the number of:

Below is the answer and explanation for the question to deliver the fastest possible time to first render, you should minimize the number of: To deliver the fastest possible time to first render, you should minimize the number of: The number of CSS classes The number of critical JavaScript functions The number of critical resources ✅...

Which is a benefit of a mobile site over an app for businesses?

Below is the answer for the question which is a benefit of a mobile site over an app for businesses? Which is a benefit of a mobile site over an app for businesses? Shorter development timelines. Mobile sites allow for easy updating (for example, users don’t need to accept or install your updates. ✅ You have to build a separate site for tablets an...

Which can be sacrificed to reduce the file size of an image?

Below is the answer and explanation for the question which can be sacrificed to reduce the file size of an image? Which can be sacrificed to reduce the file size of an image? Quality ✅ Rendering speed Color range Compression correct answer Quality ✅ explanation Finding t...

Which metric is affected by slow page speed?

Below is the answer and explanation for the question Which metric is affected by slow page speed? Which metric is affected by slow page speed? View through rate Conversion rate ✅ Clickthrough rate Impressions correct answer Conversion rate ✅ explanation Optimizing the cr...

Why can an intermittently available mobile network result in a poor experience?

Below is the answer and explanation for the question why can an intermittently available mobile network result in a poor experience? Why can an intermittently available mobile network result in a poor experience? Enabling wifi reduces battery life It uses more data Some assets might not be loaded ✅ It is less secure than wifi

True or false: constructing the document object model (DOM) requires style information.

Below is the answer and explanation for the question true or false: constructing the document object model (DOM) requires style information. True or false: constructing the document object model (DOM) requires style information. True False ✅ correct answer False ✅ explanation DOM construc...

A good notification:

Below is the answer and explanation for the question a good notification: A good notification: It is relevant ✅ It delivers in the background It can be dismissed It has a default action correct answer It is relevant ✅ explanation Push notifications are one of the most va...