Google Mobile Sites Exam Questions and Answers April 2018

*Disclaimer: All questions below are from live exams within the month of January- April 2017. Using these answers resulted in 80%-90% on the test, so they are not all correct (or I went too fast). Double check your answers when taking the exam!

Which is NOT part of AMP:

Inline CSS
Analytics
AMP HTML
Custom Fonts

A good notification:

It is relevant
It delivers in the background
It can be dismissed
It has a default action

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

True
False

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

Which metric is affected by slow pagespeed?

Viewthrough rate
Conversion rate
Clickthrough rate
Impressions

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

Quality
rendering speed
color range
compression

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 and phones
Mobile sites require approvals before one can gain access
Mobile sites only work on Android

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
The number of critical HTML classes

Which is NOT part of AMP:

Inline CSS
Analytics
AMP HTML
Custom Fonts

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

Pixel pipeline
DOM and CSSOM trees
UX trees
HTML and JavaScript

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

PNG
Vector (SVG)
Data URLs
JPEG

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

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

Making your primary call-to-action buttons more prominent
Showing the desktop version of the site on mobile devices
Offering secondary call-to-action buttons, like social sharing
Asking the user to register to save their details

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

Speedtest.net
Pingdom.com
Webpagetest.org
Speedguidenet

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

Identical
Sized
Different
Variants

region of ______. Any longer than that and you risk taking up too much time.

5 – 6ms
7 – 8ms
3 – 4ms
9 – 10ms

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

True
False

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

any resource that returns 404
a resource that could block initial display of the page
any resource that must be loaded
a resource that takes more than 500ms to load

Why are push notifications important for advertisers?

They deliver timely updates to users
They give users the opportunity to re-engage with content they are interested in
The information they deliver can be acted on immediately
All of the answer options are correct

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

analytics; optimization
images; articles
content; design
user experience; speed

AMP ______ the page ______ waiting for resources to download:

indexes; while
caches; before
lays out; without
displays; after

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
Showing labels inside form fields for convenience
Offering users a numerical keyboard for telephone number field

How does AMP work?

Keeps all third-party JavaScript out of the critical path
All of the above
Doesn’t let extension mechanisms block rendering
Allows only asynchronous scripts

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

Dingbats
Variants
Descenders
Ligatures

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

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

A good notification:

It is relevant
It delivers in the background
It can be dismissed
It has a default action

The render tree contains:

visible content
content of the page
the DOM
the styles of the page

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

Same calls-to-action should be used both on mobile and desktop sites
Use only menus
Keep call to action on the second page
Calls-to-action should be prominent on the visible area of the mobile homepage

Research shows that mobile users expect to:

tap the logo at the top of a mobile page to take them back to the homepage
tap the logo at the top of a mobile page to take them to a “Contact Us” page
see the logo below the fold on mobile sites
tap the logo at the top of a mobile page to take them to new products

Which allows for efficient font reuse between pages?

The local() directive
The font matching algorithm
Revalidation token
WOFF2 fonts

What’s the fastest and best-optimized resource?

An image
The one not sent
Javascript
Web fonts

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

True
False

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

Follow the style guide
Add more parents
Change the selector to a class
Create more complex CSS

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

Fonts
Articles
JavaScript
Images

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.

True
False

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

Optimized images
Lazy loading
One web font
A photo carousel on the homepage that allows the visitor to preview multiple photos with a quick click

Why did Facebook create “2G Tuesdays”?

To understand how people on 2G use their product
To run a random experiment
Most users are on 2G
Facebook didn’t create “2G Tuesdays”

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

What is it that the App shell helps with

Creating a fully optimized site
Improves elements of the UX
Making the full page load faster
Making transitions between pages faster

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

It’s important to show as much information as possible on the visible part of a mobile site
Users are willing to accept longer load times for high-resolution images
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

Which describes how a Service Worker operates?

It runs a programmable network proxy
It doesn’t handle network requests coming from the navigation on the website
It can be used only when the user is browsing the website
None of these answer options describe a Service Worker

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

UX API
Location API
Call API
Add to home screen

For each font on your website you should:

Minimize the HTML
Make sure to add as many as possible
Add CSS
Minimize the number of used variants.

Which of the following describes the Payment API correctly?

It is designed for external card readers
It requires a phone with a fingerprint reader
It bypasses the checkout form
It replaces your payment processor

Which metric is affected by slow pagespeed?

Viewthrough rate
Conversion rate
Clickthrough rate
Impressions

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

The first step to optimize the critical rendering path is:

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

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

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

Not knowing where to click
Waiting for slow pages to load
Being shown interstitials
Watching a video

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

Product Performance Report
Checkout Behavior Analysis Report
Device Usage Report
Top Landing Pages Report

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

Quality
rendering speed
color range
compression

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

existing mobile sites
page speed scores
design process
staffing and budget

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 and phones
Mobile sites require approvals before one can gain access
Mobile sites only work on Android

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

False
True

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

Less than 5000
Greater than 95%
Within 10% of similar sites
Greater than 5000

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

Optimize all at the same time
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

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

False
True

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

Raster
Vector
GZIP
Metadata

Mobile sites:

are accessed through the desktop device’s web browser
have specific functionality for mobile devices
need to be downloaded or installed to a device
require approvals to access

Which changes to “geometric properties” affect the layout?

All of the above
Widths
Heights
Top

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

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

2MB
1MB
More than 3MB
Less than 1MB

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

Checking Exit Pages Report focusing on Page Views metric
Checking All Pages Report focusing on Unique Page Views metric
Checking All Pages Report focusing on Average Time on Page metric
Checking Landing Pages Report focusing on Bounce Rate metric

A Progressive Web App:

works even with unreliable network through service worker
slows experience and therefore decreases advertisers conversion rate
needs high bandwidth environments
is the same as Accelerated Mobile Page

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
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

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

False
True

Which of the following describes an App shell?

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
None

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

Canceled
Install
Idle
Stop

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

Regular 2G
Regular 3G
Regular 4G
No Throttling

Which is NOT true about Responsive Sites?

Responsive Sites are easier to maintain
Responsive Sites are cost-effective
Responsive Sites usually have faster load times vs Separate (m.dot) Sites
Responsive Sites have one codebase, deployment and URL

In the layout step, the browser:

first resizes elements before computing their position
computes the size and position of render tree elements
displays the on-screen elements in their new positions
forces the DOM to be rebuilt

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

Users rely on filters to narrow down search results
Comprehensive search results are better than concise results
Smart-search features like auto-complete and corrected misspelling are especially important to have on small screens
Positioning site search at the top of a mobile page with an open-text search box is a best practice

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