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The render tree contains:

the DOM

the styles of the page

visible content

content of the page

Explanation:

The CSSOM and DOM trees are combined into a render tree, which is then used to compute the layout of each visible element and serves as an input to the paint process that renders the pixels to screen.

Read more here: https://support.google.com/partners/answer/7336524

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

Smart search features like auto-complete and corrected misspelling are especially important to have on small screens?

Comprehensive search results are better than concise results

Explanation:

Read more here: https://support.google.com/partners/answer/7336431

When referring to the critical rendering path in site performance, a critical resource is:

a resource that could block initial display of the page

any resource that returns 404

any resource that must be loaded

a resource that takes more than 500ms to load

Explanation:

A critical resource is a resource that could block initial rendering of the page. The fewer of these resources, the less work for the browser, the CPU, and other resources.

Read more here: https://support.google.com/partners/answer/7336426

Before introducing mobile site design best practices to your clients, you should examine their.

design process

existing mobile sites

page speed scores

staffing and budget

Why did Facebook create “2G Tuesdays”?

Facebook didn’t create “2G Tuesdays”

To understand how people on 2G use their product

To run random experiment

Most users are on 2G

Explanation:

Facebook even instituted 2G Tuesdays to help understand how people on 2G use their product. On Tuesdays, employees get a pop-up that gives them the option to simulate a 2G connection.

Read more here: https://support.google.com/partners/answer/7336589