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WorksheetsChapter 12: Mobile, Linux, and macOS Operating Systems
Total questions: 59
Worksheet time: 2hrs 58mins
What are two types of cloud-enabled services for mobile devices? (Choose two.)
locator apps
remote backup
passcode configuration
screen calibration
screen app locking
Which three methods can be used to unlock a smartphone? (Choose three.)
NFC
passcode
encryption
swipe pattern
biometric information
What are two features of the Android operating system? (Choose two.)
Android is open source and allows anyone to contribute to its development and evolution.
Android has been implemented on devices such as cameras, smart TVs, and e-book readers
All available Android applications have been tested and approved by Google to run on the open source operating system.
Each implementation of Android requires a royalty to be paid to Google.
Android applications can only be downloaded from Google Play.
user has an iOS device. What will happen if the user forgets the passcode to unlock the device?
The user must call Apple to reset the passcode.
The user can visit the Apple website to initiate a passcode reset request.
The user must perform a full restore from a backup saved in iTunes or iCloud.
The user can use the Find My iPhone service on the website www.icloud.com to reset the passcode.
A company is creating a new website to be hosted on a Linux server. The system administrator creates the group "webteam" and assigns team members to it. The administrator then creates the directory "webpages" for storing files. Later that day, one of the team members reports of being unable to create files in the "webpages" directory or subdirectories. The administrator uses the ls -l command to view the file permissions. The result displayed is drwxr-xr--. What should the administrator do to allow team members to add and edit files?
Add the user to the webteam group.
Issue the command chmod 775 –R webteam.
Issue the command chmod 775 –R webpages.
Make the user the owner of the directory and subdirectories.
What three tasks can be done with the iOS device Home button? (Choose three.)
wake the device
respond to an alert
return to the home screen
open audio controls
place apps into folders
What two preventive maintenance tasks should be scheduled to occur automatically? (Choose two.)
executing a backup
scanning the signature files
updating the operating system software
resetting devices by applying the factory reset feature
checking the disks for bad sectors
Android and OS X are based on the Unix operating system.
True
False
A user presses the Recent Apps icon on an Android-based smartphone to see a list of recently used apps. What should the user do to remove an app from the list?
Swipe the app up.
Double tap on the app.
Swipe the app down.
Swipe the app to either side.
Which feature of an Android or iOS mobile device helps prevent malicious programs from infecting the device?
The phone carrier prevents the mobile device app from accessing some smartphone features and programs.
The passcode restricts the mobile device app from access to other programs.
Mobile device apps are run in a sandbox that isolates them from other resources.
The remote lock feature prevents malicious programs from infecting the device.
How is the representation of apps in the Windows Phone operating system interface different from the representations used in Android and iOS?
Windows Phone uses rectangles that can display active content and that can also be resized.
Windows Phone uses buttons that must be tapped before an app can be seen.
Windows Phone uses widgets that, when deleted from the Start screen, also delete the associated app.
Windows Phone uses badges that indicate the system resources used by each app.
Which two location-specific services can the GPS feature on a mobile device offer? (Choose two.)
playing local songs
displaying local weather information
planning a route between two locations
displaying a map of a destination city while driving
delivering local advertising
Match the following Linux CLI commands to their function.
cd
changes the current directory
remove files
creates a directory under the current directory
displays the files inside a directory
displays the documentation for a specific command
Match the following Linux CLI commands to their function.
rm
changes the current directory
remove files
creates a directory under the current directory
displays the files inside a directory
displays the documentation for a specific command
Match the following Linux CLI commands to their function.
mkdir
changes the current directory
remove files
creates a directory under the current directory
displays the files inside a directory
displays the documentation for a specific command
Match the following Linux CLI commands to their function.
ls
changes the current directory
remove files
creates a directory under the current directory
displays the files inside a directory
displays the documentation for a specific command
Match the following Linux CLI commands to their function.
man
changes the current directory
remove files
creates a directory under the current directory
displays the files inside a directory
displays the documentation for a specific command
Which two terms describe unlocking Android and iOS mobile devices to allow users full access to the file system and full access to the kernel module? (Choose two.)
patching
rooting
remote wipe
Sandboxing
jailbreaking
A system administrator is using the crontab command to edit an entry on a Linux server. Which service is the administrator configuring?
editing a shell script to run when the server starts
installing the new BIOS update when it is available
scheduling a task to run at a specific time and date
deleting caches and cookies after the web browser closes
A person with an Android mobile device holds down the power button and the volume down button until the device turns off. The person then turns the device back on. What was this person doing to the device?
a normal power off
a factory reset
a full backup to the iCloud
a standard reset of the device
an operating system update
Which two location data sources can locator apps use to determine the position of a mobile device? (Choose two.)
cellular towers
WiFi hotspots
the sandbox
remote lock
an app source
What are two ways that iOS differs from Android? (Choose two.)
iOS uses an All Apps button whereas Android uses a Home button.
iOS has a physical Home button, but Android uses navigation icons.
In iOS, the icon for an app represents the app itself. Deleting the icon in iOS deletes the app. In Android, the icon on the Home screen is a shortcut to the app
In iOS, apps can only appear on screens, whereas in Android, apps can appear on screens and in folders.
In iOS, folders are created by dragging one app on top of another app, but in Android folders must be created from the home screen menu.
What are two purposes of the passcode lock feature on mobile devices? (Choose two.)
to help prevent theft of private information
to prevent unauthorized use of the device
to erase all personal data from the device
to return the device to the default factory state
to remotely lock the device if it is stolen
Refer to the exhibit. What two statements are true about the mobile operating system screen shown? (Choose two.)
The area enclosed by the red rectangle contains navigation icons.
The area that is highlighted displays background processes and indicators.
This is a Windows Phone screen.
This is an Android screen.
This is an iOS screen.
Which two methods are commonly used to remove the default restrictions and protections added to mobile operating systems? (Choose two.)
rooting
jailbreaking
rootkit execution
device update
system backup
A Linux administrator wants to backup current files in a data directory and store them in a new directory on another disk. Which two commands would be needed? (Choose two.)
cd
cp
rm
mv
mkdir
A file called new_resume has the following file permissions: rw-r-x--x . What two facts can be determined from these permissions? (Choose two.)
The user has full access to the file.
Members of the group have read and execute access to the file.
Other people have read and execute access to the file.
Group members are able to modify the file.
The user is able to read and modify the file.
What is a good source for safely downloading Android apps?
iTunes
Google Play
freeware sites
the Apple App Store
What represents apps in the Windows Phone interface?
buttons
icons
tiles
widgets
What is the result of doing a factory reset on a mobile device?
The operating system will be updated with the most recent updates and patches.
All user data and settings will be deleted.
The operating system will be deleted and all user data is transferred to the Cloud.
A complete backup of the device is done and all viruses and malware are removed.
What is the name of the Windows Phone 8.1 digital, or virtual, assistant?
Bing
Cortana
Nova Launcher
Spotlight
What is Wi-Fi calling?
a method used to push apps to smartphones
a convenient way to securely and digitally make payments with mobile devices
a government emergency alert service for smartphones
a way to make mobile phone calls over a wireless data network
a method for sharing data between two mobile devices
What is the purpose of signature files used to secure mobile devices and operating systems?
They contain a record of historical and pending firmware and software updates.
They contain a list of all user passwords.
They contain a log of digital certificates and encryption keys associated with the user.
They contain sample code from known viruses and malware that is used by security software to identify malicious software.
What is a purpose of the boot manager program?
It manages antivirus signature files, encryption keys, and certificates when a device boots.
It automates the POST and checks the disk for bad sectors during a boot.
It checks the validity of hardware and software on the device after a factory reset.
It allows the user to select the OS to use to boot the device.
It allows the user to determine which apps are automatically opened during the boot process.
An administrator is re-imaging a large number of Mac OS X machines. What built-in tool or command can be used to remotely boot the computers?
mstsc
Netboot
Time Machine
Finder
What tool or command is used in the Mac OS X to navigate the file system?
File Explorer
Task Manager
Finder
mstsc
Which model does Apple use to provide iOS apps to customers?
iCloud
Xcode
sandbox
walled garden
Android apps run primarily based on privileges enabled by the user. Sometimes an Android app requires extra privileges to access system components. How do Android apps run to accomplish both situations?
Android apps run in a sandbox.
Android apps run in a guest mode.
Android apps run in a walled garden.
Android apps run through a proxy service.
Which navigation icon on the system bar of an Android device is used to return to the previous screen?
Back
Home
Menu
Recent Apps
Which statement describes the iOS app icons on a mobile device screen?
Each icon is a shortcut of the app.
Each icon represents the actual app.
Each icon represents an instance of the actual app.
Each icon links to multiple instances of the actual app.
What is the purpose of using the auto-brightness feature on a mobile device with an LCD screen?
to conserve battery power
to reduce the interference from sunlight
to prevent the burn-in effect on the screen
to display text messages with better contrast
Which statement describes the Touch ID in iOS devices?
It is used as the passcode.
It is the encryption key set by the user.
It is the hash value of the user fingerprint.
It is used to set the touch screen sensitivity.
Which cloud-based storage service does Microsoft provide for backups?
iCloud
Dropbox
OneDrive
Google Sync
A mobile device user notices that the system update includes an update of the Primary Rate ISDN (PRI). What is the function of the PRI?
It is the configuration of radio frequencies used on the device.
It is the data rate setting of the user account with the carrier service.
It is the configuration of the data rates between the device and the cell tower.
It is the configuration information that the device needs to communicate on networks other than the carrier network.
A Linux PC user notices that the PC freezes on startup and exhibits kernel panic where there is a stop screen. What is a possible cause for the issue?
LILO has been deleted.
GRUB has been corrupted.
A driver has become corrupted.
Deja Dup has been turned off in the system.
What command is used to open a text editor in a Linux system?
grep
ifconfig
ls
vim
Which Linux file system introduced the journaled file system, which can be used to minimize the risk of file system corruption in the event of a sudden power loss?
ext2
ext3
CDFS
NFS
What is the most commonly used method to close an application that appears to be frozen on an OS X-based computer?
Use Force Quit
Use Task Manager
Access the Status menu
Access the Notification Center
Which file system is the primary file system used by Apple in current Macintosh computers?
ext2
ext3
CDFS
HFS+
APFS
An instructor is discussing facts about different mobile device operating software. The instructor states: "The mobile devices have a feature called Spotlight that is a search tool that provides information from many sources." To which OS does this relate: iOS, Android, or both or Windows?
iOS
Android
Both
Windows
An instructor is discussing facts about different mobile device operating software. The instructor states: "This OS uses the system bar, displayed at the bottom of every screen, to navigate apps and screens." To which OS does this relate: iOS, Android or both or windows?
Android
iOS
Both
Windows
An instructor is discussing facts about different mobile device operating software. The instructor states: "This OS can be used by programmers to operate devices like laptops, smart TVs, and e-book readers." To which OS does this relate: iOS, Android, or both or Windows?
Android
iOS
both
Windows
An instructor is discussing facts about different mobile device operating software. The instructor states: "The icon on the Home screen is a shortcut to the app." To which OS does this relate: iOS, Android, or bot or windows?
Android
iOS
both
Windows
An instructor is discussing facts about different mobile device operating software. The instructor states: "WIFI hotspots are a location data source that can be used by locator apps to determine the position of a mobile device." To which OS does this relate: iOS, Android, or both or windows?
both
iOS
Android
Windows
An instructor is discussing facts about different mobile device operating software. The instructor states: "Remote backups are a cloud-enabled service for mobile devices." To which OS does this relate: iOS, Android, or both or windows?
both
iOS
Android
Windows
An instructor is discussing facts about different mobile device operating software. The instructor states: "GPS signals are used to enable geocaching, geotagging and device tracking on these mobile devices." To which OS does this relate: iOS, Android, or both or windows?
both
iOS
Android
Windows
An instructor is discussing facts about different mobile device operating software. The instructor states: "The start voice control function can be performed with the home button." To which OS does this relate: iOS, Android, or both or windows?
iOS
Android
both
Windows
An instructor is discussing facts about different mobile device operating software. The instructor states: "To synchronize a mobile device to a PC, iTunes must be installed on the PC." To which OS does this relate: iOS, Android, or both or windows?
iOS
Android
both
Windows
An instructor is discussing facts about different mobile device operating software. The instructor states: "When the device roams out of the range of any Wi-Fi networks, it can connect to the cellular data network if this feature is enabled." To which OS does this relate: iOS, Android, or both or windows?
both
iOS
Android
Windows
