Google Mobile Sites Certification Exam Answers 2019

100% Free Updated Google Mobile Sites Certification Exam Questions & Answers.

This assessment covers basic and advanced concepts, including best practices for creating, managing, measuring, and optimizing mobile websites. Passing this assessment demonstrates a strong knowledge of mobile sites design and an understanding of best practices and current browser technologies.

Google Mobile Sites Assessment Details:

  • Questions: 65 questions
  • Time limit: 90 minutes to complete the assessment
  • Pass rate: 80% or higher to pass
  • Retake period: If you don’t pass the assessment, you can take it again after 1 day
  • Validity Period: 12 Months

Ads Certificate

🛒 Hire us: It very hard to take an exam in the middle of your busy schedule. That’s why we are here. If you don’t have enough time, then hire us. We will do all kind of exam on behalf of you. We provide the LOWEST PRICE for the examination on the internet for taking the exam. Contact Us Now.

🙏 Help Us to Better Serve You: If you did not find any question or if you think any question’s answer is wrong, let us know. We will update our solutions sheet as much early as possible. Contact Us Now.

For taking the Google Mobile Sites Exam to follow the below steps

☑ Step 1: Go here https://academy.exceedlms.com/student/path/2967-mobile-sites-certification and sign in with your Google account.

☑ Step 2: Start your exam.

☑ Step 3: Copy (Ctrl+C) the question from Google exam section and then find (Ctrl+F) the question from here and get the correct answer.

☑ Step 4: After completing the exam, you will get Google Mobile Sites Certificate.


How does AMP work?

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

Why do CSS @imports harm performance?

  • They create a less efficient CSSOM
  • They require additional CPU time to parse
  • @import loads files less efficiently than <link>
  • They can introduce unwanted dependencies

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

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

  • True
  • False

Why did Facebook create “2G Tuesdays”?

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

In the layout step, the browser:

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

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

  • any resource that returns a 404
  • 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

Which allows for efficient font reuse between pages?

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

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

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

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

  • True
  • False

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

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

  • UX API
  • Add to home screen
  • Call API
  • Location API

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

  • True
  • False

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

  • Asking for registration to use the site
  • Letting users convert as a guest
  • Remembering and prefilling preferences of registered users in forms
  • Using click-to-call buttons for complicated forms or complex tasks

Which most accurately describes the purpose of compression?

  • Combining files
  • Fitting more into the cache
  • Minimizing file size
  • Making the code faster

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

  • True
  • False

Which of the following describes an App shell?

  • It is comprised of all page elements which are dependant of the specific page contents
  • None of the answer options are correct
  • It provides a fast first impression gracefully transitioning to a fully loaded page
  • It discourages caching of content that overlaps across pages of the website

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

  • True
  • False

How can you make the job simpler for the browser?

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

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

  • 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
  • Showing labels inside form fields for convenience

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

  • JavaScript
  • Articles
  • Fonts
  • Images

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

  • 9ms – 10ms
  • 3ms – 4ms
  • 5ms – 6ms
  • 7ms – 8ms

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

  • Color range
  • Compression
  • Rendering speed
  • Quality

Which of the following is NOT true about the 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

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

  • True
  • False

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

  • 35
  • 60
  • 20
  • 100

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

  • critical HTML classes
  • critical resources
  • critical JavaScript functions
  • CSS classes

Which is NOT part of AMP:

  • Analytics
  • Inline CSS
  • AMP HTML
  • Custom Fonts

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

  • page speed scores
  • existing mobile sites
  • staffing and budget
  • design process

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

  • True
  • False

Which changes to “geometric properties” affect the layout?

  • Heights
  • Widths
  • All of the answers are correct
  • Top

A Progressive Web App:

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

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

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

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

  • variants
  • sized
  • different
  • identical

Which is NOT true about responsive sites?

  • Responsive sites are cost-effective
  • Responsive sites usually have faster load times versus separate (m.dot) sites
  • Responsive sites have one codebase, deployment and URL
  • Responsive sites are easier to maintain

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

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

  • Regular 4G
  • No Throttling
  • Regular 3G
  • Regular 2G

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

  • dingbats
  • descenders
  • variants
  • ligatures

What’s the fastest and best-optimized resource?

  • An image
  • Web fonts
  • The one not sent
  • Javascript

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

For each font on your website you should:

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

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

  • Greater than 95%
  • Test version of the web page that is modified from the original
  • Original version of the web page
  • Less than 5000

A good notification:

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

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

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

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

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

Currently, Google Optimize does NOT currently allow you to:

  • do heatmap analysis to better understand to user behaviour on your site
  • serve experiments to specific groups of users that you’ve defined as Audiences in Google Analytics
  • test new website designs, layouts and content with a subset of your visitors
  • use your existing goals and metrics in Google Analytics as experiment objectives

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

  • JPEG
  • PNG
  • Vector (SVG)
  • Data URLs

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

  • It is less secure than WiFi
  • It uses more data
  • Enabling WiFi reduces battery life
  • Some assets might not be loaded

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

  • Stop
  • Install
  • Idle
  • Canceled

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

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

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

  • raster
  • metadata
  • GZIP
  • vector

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 used in menus only
  • A call-to-action should be on the second page
  • The same call-to-action should be used both on mobile and desktop sites

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

  • Mobile sites only work on Android
  • Shorter development timelines
  • You have to build a separate site for tablets and phones
  • Mobile sites require approvals before one can gain access

Mobile sites:

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

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 the user to a page where the company promotes their phone number to receive calls
  • Vector (SVG)
  • Campaign landing page brings the user to the first step of a 3-step lead generation form

AMP ______ the page ______ waiting for resources to download

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

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

  • Pingdom.com
  • Speedtest.net
  • Speedguide.net
  • Webpagetest.org

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

  • 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
  • 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)

Which describes how a Service Worker operates?

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

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

  • DOM and CSSOM trees
  • Pixel pipeline
  • UX trees
  • HTML and JavaScript

The render tree contains:

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

The App shell helps with:

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

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

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

Which metric is affected by slow pagespeed?

  • Clickthrough rate
  • Conversion rate
  • Viewthrough rate
  • Impressions

Why are push notifications important for advertisers?

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

Which of the following describes the Payment Request API correctly?

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

Research shows that mobile users expect to:

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

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

  • It’s important to show a prominent “full site” label on a mobile site
  • 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 use call-to-action buttons to keep users in the same browser window