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Google Mobile Sites Certification Assessment Exam Answers 2018

Which of the following describes the Payment Request API correctly?

It requires a phone number with a fingerprint reader

It replaces your payment processor

It is designed for external card readers

It bypasses the checkout form

 

 

 

Get in Mobile Sites Certified Now!

 

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

lazy loading

optimized images

one web font

 

 

The App shell helps with:

Making transitions between pages faster

Improves elements of the UX

Making the full page load faster

Creating a fully optimized site

 

 

Which metric is affected by slow pagespeed?

Conversion rate

Impressions

Clickthrough rate

Viewthrough rate

 

 

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

3ms – 4ms

9ms – 10ms

5ms – 6ms

7ms – 8ms

 

Currently, Google Optimize does NOT currently allow you to:

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

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

 

 

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

Mobile sites require approvals before one can gain access

Mobile sites only work on Android

Shorter development timelines

You have to build a separate site for tablets and phones

 

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

Landing Pages Report focusing on Bounce Rate metric

All Pages Report focusing on Average Time on Page metric

All Pages Report focusing on Unique Page Views metric

Exit Pages Report focusing on Page Views metric

 

 

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)

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

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

 

 

 

A good notification:

is relevant

delivers in the background

has a default action

can be dismissed

 

 

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

critical resources

CSS classes

critical JavaScript functions

critical HTML classes

 

 

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

 

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

True

False

 

 

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

compression

color range

quality

rendering speed

 

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

True

False

 

Which of the following describes the Payment Request API correctly?

It bypasses the checkout form

It requires a phone number with a fingerprint reader

It replaces your payment processor

It is designed for external card readers

===

 

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

lazy loading

optimized images

one web font    

 

The App shell helps with:

Making transitions between pages faster

Improves elements of the UX

Making the full page load faster

Creating a fully optimized site

 

 

Which metric is affected by slow pagespeed?

Conversion rate

Impressions

Clickthrough rate

Viewthrough rate

 

 

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

3ms – 4ms

9ms – 10ms

5ms – 6ms

7ms – 8ms

 

Currently, Google Optimize does NOT currently allow you to:

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

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

 

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

Mobile sites require approvals before one can gain access

Mobile sites only work on Android

Shorter development timelines

You have to build a separate site for tablets and phones

 

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

Landing Pages Report focusing on Bounce Rate metric

All Pages Report focusing on Average Time on Page metric

All Pages Report focusing on Unique Page Views metric

Exit Pages Report focusing on Page Views metric

 

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)

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

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

 

A good notification:

is relevant

delivers in the background

has a default action

can be dismissed

Explanation:

 

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

critical resources

CSS classes

critical JavaScript functions

critical HTML classes  

Explanation:  

 

 

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  

 

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

True

False

 

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

compression

color range

quality

rendering speed

 

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

True

False

 

===

 

In the layout step, the browser:

computes the size and position of render tree elements

displays the on-screen elements in their new positilons

first resizes elements before computing their position

forces the DOM to be rebuilt

 

For each font on your website you should:

minimize the number of used variants

add CSS

minimize the HTML

male sure to add as many as possible

 

Which of these are NOT part of AMP:

AMP HTML

Analytics

Inline CSS

Custom fonts

 

Which allows for efficient font reuse between pages?

Revalidation token

The local() directive

WOFF2 fonts

The font matching algorithm

 

Google Optimize does NOT currently allow you to:

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 behavior on your site

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

 

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

More than 3MB

2MB

2.1MB

Less than 1MB

 

What is it that the App shell helps with

Making transitions between pages faster

Improves elements of the UX

Making the full page load faster

Creating a fully optimized site

 

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

20

35

60

100

 

What’s the fastest and best-optimized resource?

An image

Web fonts

Javascrtipt

The one not sent

 

Research shows that mobile users expect to:

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

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

see the logo below the fold on mobile sites

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

How can you make the job a lot simpler for the browser?

Add more parents

Change the selector to a class

Create more complex CSS

Follow the style guide

 

Some users are not 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

 

A Progressive Web App:

works even with unreliable network through service worker

needs high bandwidth environments

slows experience and therefore decreases advertisers conversion rate

is the same as Accelerated Mobile Page

 

Image __________ can be sacrificed to reduce the file size, and chances are the user will still like the resulting image.

compression

color range

quality

rendering speed

 

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

Device Usage Report

Checkout Behavior Analysis Report

Product Performance Report

Top Landing Pages Report

 

What makes a notification good?

it is relevant

It delivers in the background

It has a default action

It can be dismissed

 

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

Original version of the web page

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

 

Which most accurately describes the purpose of compression?

Making the code faster

Combining files

Minimizing file size

Fitting more into the cache

 

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

True

False

 

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

Speedguide.net

Pingdom.com

Webpagetest.org

Speedtest.net

 

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

Exposing options instead of using a drop-down menu

Using a real-time validation for errors in forms

Offering users a numerical keyboard for telephone number field

Showing labels inside form fields for convenience

 

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

False

True

 

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.

False

True

 

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

metadata

vector

GZIP

raster

 

Which changes to “geometric properties” affect the layout?

Top

All of the above

Heights

Widths

 

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

ligatures

dingbats

descenders

Variants

 

Which is an example of a situation when an unnecessary resource negatively impacts the user experience.

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

lazy loading

optimized images

one web font

 

What performance metrics are affected by slow pagespeed?

Conversion rate

Impressions

Clickthrough rate

Viewthrough rate

 

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

Call API

UX API

Add to home screen

Location API

 

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

user experience; speed

analytics; optimization

content; design

images; articles

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

Pixel pipeline

DOM and CSSOM trees

HTML and Javascript

UX trees

 

AMP _________ the page ____________ waiting for resources to download:

lays out; without

caches; before

indexes; while

displays; after

 

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

Letting users convert as a guest

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

Remembering and prefilling preferences of registered users in forms

Asking for registration to use the site

 

How do you prioritize optimization of the 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 rate)

Prioritize the site with the highest conversion rates

Optimize all at the same time

 

The render tree contains:

visible content

content of the page

the DOM

the styles of the page

 

Which of the following is NOT true about 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

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

 

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

any resource that must be loaded

a resource that takes more than 500ms to load

a resource that could block initial display of the page

any resource that returns 404

 

True or false: Constructing the DOM requires style information.

True

False

 

Which of the following describes the Payment API correctly?

It bypasses the checkout form

It requires a phone number with a fingerprint reader

It replaces your payment processor

It is designed for external card readers

 

Which is the best way to discover and prioritize landing pages for UX improvement potential?

Checking Landing Pages Report focusing on Bounce Rate metric

Checking Exit Pages Report focusing on Page Views metric

Checking All Pages Report focusing on Unique Page Views metric

Checking All Pages Report on Average Time on Page metric

 

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

False

True

 

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

page speed scores

staffing and budget

design process

existing mobile sites

 

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

Watching a video

Waiting for slow pages to load

Being shown interstitials

Not knowing where to click

 

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

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

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

It’s important to show a prominent “Full site” label on a mobile site

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

 

Why did Facebook create “2G Tuesdays”?

To run random experiment

Most users are on 2G

Facebook didn’t create “2G Tuesdays”

To understand how people on 2G use their product

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 these answer options describe a Service Worker

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

 

Which of these should be minimized to deliver the fastest possible time to firstrender?

The number of critical HTML classes

the number of CSS classes

The number of critical JavaScript functions

The number of critical resources

 

Which of the following describes an App shell?

None

It comprises of all page elements which are dependant of the specific page contents

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

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

 

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

Stop

Install

Idle

Canceled

 

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

PNG

Vector (SVG)

JPEG

Data URL’s

 

Which is NOT true about Responsive Sites?

Responsive Sites are cost-effective

Responsive Sites are easier to mainatin

Responsive Sites usually have faster load times vs Separate (m.dot) Sites

Responsive Sites have one codebase, deployment and URL

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 product detail page

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

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

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

Regular 2G

No Throttling

Regular 3G

Regular 4G

 

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

Keep call to action on the second page

Same calls-to-action should be used both on mobile and desktop sites

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

Use only menus

 

Why can lie-fee 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

 

True or false: Mobile pages that load 1s faster see up to a 27% increase in CvR

True

False

 

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

Greater than 95%

Less than 5000

Greater than 5000

Within 10% of similar sites

 

If you’re in an animation like scrolling, you should ideally be looking to keep your JavaScript to  something in the region of __________. Any longer than that and you risk taking up too much time.

3-4 ms

9-10 ms

5-6 ms

7-8 ms

 

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

False

True

 

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

different

identical

variants

sized

 

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

Mobile sites require approvals before one can gain access

Mobile sites only work on Android

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 and phones

 

Mobile sites:

require approvals to access

need to be downloaded or installed to a device

are accessed through the desktop device’s web browser

have specific functionality for mobile devices

 

Why do CSS @imports harm performance?

They can introduce unwanted dependences

@import loads files less efficiently than <link>

They create a less efficient CSSOM

They require additional CPU time to parse

 

How does AMP work?

Keeps all third-party JavaScript out of the critical path

Doesn’t let extension mechanisms block rendering

Allows only asynchronous scripts

All of the above

 

Why are push notifications important for advertisers?

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

All of the answer options are correct

 

The first step to optimize the critical rendering path is:

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)

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

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

 

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

False

True

 

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

JavaScript

Articles

Images

Fonts