Mobile Sites Certification

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Mobile Sites Certification

Mobile Sites Certification Answers

Price: $5.00

Mobile Sites Certification

Receive a certification that proofs your skills in everything from creation to managing, measuring, as well as optimizing mobile websites which are covered from basic to advanced concepts; including global best practices. Get Certified Today with Best Certification Answers!

Questions you might encounter in this certification:

Which describes how a Service Worker operates?

It doesn’t handle network requests coming from the navigation on the website

It runs a programmable network proxy

None of the answer options are correct

It can be used only when the user is browsing the website

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

any resource that must be loaded

a resource that could block initial display of the page

any resource that returns a 404

a resource that takes more than 500ms to load

Why did Facebook create “2G Tuesdays”?

To understand how people on 2G use their product

Most users are on 2G

To run a random experiment

Facebook didn’t create “2G Tuesdays”

A Progressive Web App:

works even with unreliable network through service worker

slows experience and therefore decreases conversion rate

needs high bandwidth environments

is the same as Accelerated Mobile Page

Which of the following is NOT a best practice for a financial company to keep users from dropping out of the funnel?

Remembering and prefilling preferences of registered users in forms

Letting users convert as a guest

Using click-to-call buttons for complicated forms or complex tasks

Asking for registration to use the site

In the layout step, the browser:

first resizes elements before computing their position

forces the DOM to be rebuilt

“computes the size and position of render tree elements “

displays the on-screen elements in their new positions

Which is an example of an unnecessary resource negatively impacting the user experience?

A photo carousel on the homepage that allows the visitor to preview multiple photos with a quick click

One web font

Optimized images

Lazy loading

Why are push notifications important for advertisers?

All of the answer options are correct

The information they deliver can be acted on immediately

They give users the opportunity to re-engage with content they are interested in

They deliver timely updates to users

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

It uses more data

Enabling WiFi reduces battery life

Some assets might not be loaded

It is less secure than WiFi

To discover and prioritize landing pages for potential improvements to the user design, you should check the:

All Pages Report focusing on Unique Page Views metric

Landing Pages Report focusing on Bounce Rate metric

Exit Pages Report focusing on Page Views metric

All Pages Report focusing on Average Time on Page metric

Which of the following is NOT a best practice to optimize forms on mobile?

Showing labels inside form fields for convenience

Using a real-time validation for errors in forms

Exposing options instead of using a drop-down menu

Offering users a numerical keyboard for telephone number field

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

staffing and budget

page speed scores

design process

existing mobile sites

AMP ______ the page ______ waiting for resources to download.

displays; after

caches; before

indexes; while

lays out; without

When using Chrome devtools, what should you limit the connectivity to?

a – No Throttling

b – Regular 4G

c – Regular 3G

d – Regular 2G

The render tree contains:

the styles of the page

visible content

content of the page

the DOM

True or false: Constructing the Document Object Model (DOM) requires style information.



Keeping CSS independent of HTML allows us to treat_______and _______as separate concerns.

content; design

user experience; speed

analytics; optimization

images; articles

What is a valid event for a Service Worker to emit when it’s registered?





At a minimum, what page weight should you be aiming for?

Less than 1MB

More than 3MB



True or false: You can experiment with Google Analytics features by using the Google Merchandise Store demo account.

True or false: A/B testing allows you to test two or more elements on the site to understand their effects on each other

Which of the following reports in Google Analytics helps you to identify leakages from the conversion funnel?

Device Usage Report

Top Landing Pages Report

Product Performance Report

Checkout Behavior Analysis Report

Mobile sites:

are accessed through the desktop device’s web browser

need to be downloaded or installed to a device

have specific functionality for mobile devices

require approvals to access

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

a – critical HTML classes

b – critical resources

c – critical JavaScript functions

d – CSS classes

Which of these features is part of a Progressive Web App?


Location API

Call API

Add to home screen

Which of the following is NOT true about the site search experience on mobile sites?

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

Positioning site search at the top of a mobile page with an open-text search box is a best practice

Users rely on filters to narrow down search results

How does AMP work?

Doesn’t let extension mechanisms block rendering

Keeps all third-party JavaScript out of the critical path

All of the answers are correct

Allows only asynchronous scripts

True or false: Mobile pages that load 1 second faster see up to a 27% increase in conversion rate.

Which metric is affected by slow pagespeed?

Clickthrough rate

Conversion rate

Viewthrough rate


The App shell helps with:

Making transitions between pages faster

Making the full page load faster

Improving elements of the UX

Creating a fully optimized site

How do you prioritize optimization of a mobile site for browser versions or screen resolutions:

Look for the oldest version of your site

Look for the highest number of sessions and lowest conversion rates (or highest bounce rates)

Prioritize the site with the highest conversion rates

Optimize all at the same time

What’s the fastest and best-optimized resource?

An image

Web fonts

The one not sent


Image information such as location and camera description can often be deleted to reduce image sizes. This type of information is called:





How many times per second do most devices refresh their screens?





How can you make the job simpler for the browser?

Follow the style guide

Add more parents

Change the selector to a class

Create more complex CSS

Resources with responses that are ______ for all users are great candidates to be cached by a CDN.





Which of the following describes the Payment Request API correctly?

a – It is designed for external card readers

b – It replaces your payment processor

c – It bypasses the checkout form

d – It requires a phone with a fingerprint reader

Which allows for efficient font reuse between pages?

Revalidation token

The local() directive

The font matching algorithm

WOFF2 fonts

Which is NOT true about responsive sites?

a – Responsive sites are easier to maintain

b – Responsive sites are cost-effective

c – Responsive sites have one codebase, deployment andURL

d – Responsive sites usually have faster load times versus separate ( sites

What does “Variant A” in A/B Testing usually represent?

Greater than 95%

Less than 5000

Test version of the web page that is modified from the original

Original version of the web page

At a minimum, what Speed Index score should you be aiming for?

Within 10% of similar sites

Greater than 5000

According to a Google poll, what is the top frustration when users browse the web on their mobile device?

Not knowing where to click

Watching a video

Waiting for slow pages to load

Being shown interstitials

Currently, Google Optimize does NOT currently allow you to:

use your existing goals and metrics in Google Analytics as experiment objectives

test new website designs, layouts and content with a subset of your visitors

serve experiments to specific groups of users that you’ve defined as Audiences in Google Analytics

do heatmap analysis to better understand to user behaviour on your site

The first step to optimize the critical rendering path is to:

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

optimize the number of critical bytes to reduce the download time (number of roundtrips)

analyze and characterize your critical path: number of resources, bytes, length

minimize number of critical resources: eliminate them, defer their download, mark them as async, and so on

For each font on your website you should:

Minimize the HTML

Make sure to add as many as possible

Minimize the number of used variants


What is a tool that you can use to emulate and simulate a site that’s experiencing poor or unreliable connectivity?

Which most accurately describes the purpose of compression?

Combining files

Minimizing file size

Fitting more into the cache

Making the code faster

True or false: JavaScript can block DOM construction unless explicitly declared as async.

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

You have to build a separate site for tablets and phones

Shorter development timelines

Mobile sites only work on Android

Mobile sites require approvals before one can gain access

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

HTML and JavaScript

UX trees

Pixel pipeline

DOM and CSSOM trees

If you’re in an animation like scrolling, you should ideally be looking to keep your JavaScript to something in the region of:

7ms – 8ms

5ms – 6ms

3ms – 4ms

9ms – 10ms

Which changes to “geometric properties” affect the layout?




Which of the following statements is true about the mobile experience of users?

a – Users are willing to accept longer load times for high-resolution images

b – It’s important to show as much information as possible on the visible part of a mobile site

c – It’s important to use call-to-action buttons to keep users in the same browser window

d – It’s important to show a prominent “full site” label on a mobile site

In which of the following situations can a high bounce rate be interpreted as a good metric?

Campaign landing page brings the user to the first step of a 3-step lead generation form

Vector (SVG)

Campaign landing page brings the user to the product detail page

Campaign landing page brings the user to a page where the company promotes their phone number to receive calls

Which of the following describes an App shell?

a – It provides a fast first impression gracefully transitioning to a fully loaded page

b – It discourages caching of content that overlaps across pages of the website

c – It is comprised of all page elements which are dependant of the specific page contents

d – None of the answer options are correct

A good notification:

is relevant

has a default action

delivers in the background

can be dismissed

To optimize for speed, you shouldn’t use too many webfonts and you should minimize the number of _____.




Why do CSS @imports harm performance?

They create a less efficient CSSOM

@import loads files less efficiently than <link>

They require additional CPU time to parse

They can introduce unwanted dependencies

Which is NOT part of AMP:

Custom Fonts

Inline CSS



True or false: To instruct the browser to use the default device width, you would use <meta name=”viewport” content=”width=device-width”>

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

Data URLs



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

Rendering speed

Color range



Which is true about calls-to-action usage on mobile homepages?

A call-to-action should be prominent on the visible area of the mobile homepage

A call-to-action should be on the second page

The same call-to-action should be used both on mobile and desktop sites

A call-to-action should be used in menus only

Which components often account for most of the downloaded bytes on a web page?




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.

Research shows that mobile users expect to:

a – see the logo below the fold on mobile sites

b – tap the logo at the top of a mobile page to take them to new products

c – tap the logo at the top of a mobile page to take them to a “Contact Us” page

d – tap the logo at the top of a mobile page to take them back to the homepage

Some users aren’t comfortable converting on their mobile device. What could be an action you can take to improve their experience?

Offering secondary call-to-action buttons, like social sharing

Asking the user to register to save their details

Making your primary call-to-action buttons more prominent

Showing the desktop version of the site on mobile devices

True or false: Images should never change when rotating a device screen or between different device sizes.


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