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CompTIA A+ > Mobile Devices > Flashcards

Mobile Devices Flashcards

1
Q

What are the differences between tablets and laptops?

A

Tablets have a lack of field serviceable parts.

Tablets are not upgradeable.

Tablets use non-volatile flash memory hard wired to the system.

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2
Q

What is the difference between open source and closed source?

A

Open source means you are free to download and modify software.

Closed source means software cannot be modified without express permission and licensing.

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3
Q

Where do Android users download applications?

A

Android Market

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4
Q

Where do iOS users download applications?

A

App Store

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5
Q

What is the process of hacking the OS of a mobile phone?

A

For Android, it is rooting the phone.

For iOS, it is jailbreaking.

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6
Q

What is the combination of hardware and software that measure velocity, detect rotation, shaking of the device and so on?

A

Accelerometer

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7
Q

What measures the pitch, roll, and yaw, just like in the concept of flight dynamics?

A

Gyroscope

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8
Q

How do you calibrate the screen of an Android device?

A

Settings > Display.
Place the phone on a flat surface.
Then press Calibrate.

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9
Q

What is the worldwide system of satellites that provide location information for anything with a GPS receiver?

A

GPS

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10
Q

How do you enable GPS for Android and Apple devices?

A

For Android: Settings > Location, select Use GPS satellites.

For Apple: Settings > Location Services

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11
Q

What is the practice of tracking and recording the location of a mobile device over time?

A

Geotracking

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12
Q

A user is having difficulty tapping on icons. What should you do to help the user? (Select the two best answers.)

A. Clean the display.
B. Tap the Home button.
C. Install a screen protector.
D. Initiate a soft reset.
E. Initiate a hard reset.
A

A and D.

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13
Q

Which of the following can aid a mobile user in finding the nearest coffee shop?

A. Geotracking
B. iOS
C. GPS
D. GSM

A

C. GPS

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14
Q

A user wants to stop his tablet from shifting horizontally when he turns it. Which of the following should you enable?

A. Lock Rotation
B. Accelerometer
C. Gyroscope
D. Screen Calibration

A

A. Lock Rotation

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15
Q

What kind of display would an iPad2 use?

A. CRT
B. Multitouch
C. Tap Screen
D. Singletouch

A

B. Multitouch

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16
Q

What are two common operating systems used by mobile devices?

A. Blueberry OS
B. iOS
C. Google OS
D. Android OS

A

B and D

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17
Q

What type of CPU do mobile devices?

A. Core i7
B. Phenom II
C. ARM
D. Pentium

A

C. ARM

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18
Q

Which OS is considered to be closed source?

A. Android OS
B. Bluetooth
C. Linux
D. iOS

A

D. iOS

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19
Q

What are a couple of differences between a tablet computer and a laptop? (Select the two best answers)

A. Tablets have little or no field serviceable parts.
B. Tablets are upgradeable.
C. Laptops don’t use touch screens.
D. Tablets use flash memory as the hard drive.
E. Tablets use RAM.

A

A and D.

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20
Q

What are the basic types of hardware used by a tablet computer?

A

1 GHz ARM CPU

512 MB DDR2 RAM

16 GB Flash Memory

Multitouch touchscreen

Lithium-ion polymer battery

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21
Q

What is the matching up of files, email, and other types of data between one computer and another?

A

Synchronization

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22
Q

How do you configure airplane mode for Android and Apple devices?

A

For Android: Settings > Wireless & Networks > check mark Airplane Mode.

For Apple: Settings > Airplane Mode

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23
Q

How do you configure Wi-Fi connection for an Android phone?

A

Settings > Wireless & Networks > Wi-Fi Settings

Then type SSID and password.

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24
Q

How do you configure Wi-Fi connection for an Apple device?

A

Settings > Wi-Fi.

Then type SSID and password.

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25
Q

What is it called when the mobile device shares its internet connection with other Wi-Fi capable devices?

A

Wi-Fi tethering

26
Q

What is it called when an Android phone is connected to a desktop computer via USB and the desktop can then share the phone’s mobile network?

A

USB tethering

27
Q

What is it called when the phone connects to a PC via USB and accesses the Internet using the PC’s Internet connection?

A

Internet pass-through

28
Q

Wi-Fi troubleshooting techniques:

A

Device is within range.

The correct SSID was entered.

The device supports the encryption protocol of the wireless network.

Wi-Fi tethering or Internet pass-through is not conflicting with the wireless connection.

Power cycle the mobile device.

Power cycle Wi-Fi.

Remove or forget the particular wireless network and then attempt to connect to it again.

29
Q

What is a wireless standard for transmitting data over short distances?

A

Bluetooth

30
Q

To configure a Bluetooth headset on an Android-based device:

A

Settings > Wireless & Networks > check the box for Bluetooth.

Tap Bluetooth settings.

Prepare the headset by pressing and holding the button while opening the microphone.

Tap Scan for Devices on the Android device. Keep holding the button on the headset until the Android device finds it.

Tap pair with this device.

Enter a pin code if necessary. The default pin code is 0000.

31
Q

To configure a Bluetooth headset on an iOS based device:

A

Settings > General > tap Bluetooth.

Tap Bluetooth.

Prepare the headset by pressing and holding the button while opening the microphone.

Tap the device name.

Enter a pin code.

32
Q

Bluetooth troubleshooting:

A

Make sure the phone or other mobile device is Bluetooth capable.

Verify that your devices are fully charged.

Check if you’re within range.

Try restarting the mobile device and attempt to reconnect.

Check for conflicting Wi-Fi frequencies.

Try using a known good Bluetooth device with the mobile device to make sure that the mobile device’s Bluetooth is functional.

Remove or forget the particular Bluetooth device, then turn off Bluetooth in general, restart the mobile device, and attempt to reconnect.

33
Q

Troubleshooting email connections:

A

Make sure the mobile device has Internet access.

Verify that that username, password, and server names are typed correctly.

Check the port numbers.

Double-check whether security is required in the form of SSL or TLS.

34
Q

To connect an Android phone to a PC and read its data:

A

Plug the phone into PC via USB. Select Disk Drive and the device will show up as Removable Disk in Windows Explorer.

35
Q

To synchronize data to a PC using an Android phone:

A

Choose HTC Sync.

36
Q

To synchronize data to a PC using an Apple phone:

A

Need to download iTunes on the PC.

Also on an iPad, you can synchronize Calendar items from the iPad itself by selecting:
Settings > Mail, Contacts, Calendars > Sync

37
Q

Which of the following are valid Wi-Fi troubleshooting methods? (Select the two best answers)

A. Power cycle the device.
B. Restart Bluetooth.
C. Use a static IP.
D. Make sure the device is within range.
E. Rename the SSID.
A

A and D.

38
Q

Which of the following connections requires a username, password, and SMTP server? (Select the two best answers)

A. Bluetooth connection
B. Wi-Fi connection
C. POP3 connection
D. Exchange connection 
E. IMAP connection
A

C and E.

39
Q

What is the most common connection method when synchronizing data from a mobile device to a PC?

A. Wi-Fi
B. Bluetooth
C. USB
D. FireWire

A

C. USB

40
Q

When configuring a Wi-Fi connection what step occurs after successfully entering the SSID?

A. Select POP3.
B. Check if the device is within range of the WAP.
C. Enter a passcode for the network.
D. Scan for networks.

A

C. Enter a passcode for the network.

41
Q

Which technology would you use if you want to connect a headset to your mobile phone?

A. Bluetooth
B. GSM
C. Wi-Fi
D. Exchange

A

A. Bluetooth

42
Q

Which of the following allows other mobile devices to share your mobile device’s Internet connection?

A. Internet pass-through
B. Locator application
C. IMAP
D. Wi-Fi tethering

A

D. Wi-Fi tethering

43
Q

What would a user need to synchronize contacts from an iPad to a PC?

A. Android Synchronization Application
B. Google Play
C. iTunes
D. ActiveSync

A

C. iTunes

44
Q

The first thing a user should do when receiving a mobile device is:

A

Set a passcode.

45
Q

To set a passcode on an Android device:

A

Go to Settings > Security.

46
Q

How do you disable visible passwords on an Android device?

A

Settings > Security.

Uncheck the box for visible passwords.

47
Q

To set a passcode on an iPad device:

A

Settings > General > Passcode Lock

48
Q

If a person fails to enter the correct passcode:

A

Android: After 5 attempts, they have to wait 30 seconds. The time increases after each failed attempt. After a certain amount of attempts, the device needs to be connected to the computer it was last synced to, or has to have a hard reset.

iPhone: After 10 attempts, the contents of the phone will be erased.

49
Q

What is a locator application?

A

Tracks where a device is if the GPS is turned on the device.

50
Q

What are some Remote Wipe programs?

A

Google Sync, Google Apps Device Policy, Apple’s Data Protection, and third party apps such as Mobile Defense.

51
Q

How do you turn off applications that are running on an Android based system?

A

Settings > Applications > Running Services.

Tap on the app and tap Stop.

52
Q

How do you stop applications on an iOS device?

A

Press and hold the Sleep/Wake button for a few seconds until a red slider appears. Then press and hold the home button until the app stops.

53
Q

How do you delete all content on an iOS device?

A

Settings > General > Reset > Erase All Content.

54
Q

How do you perform a hard reset on an Android device?

A

Turn the power off.
Hold the Volume Down button, and press and release the Power button.
Select Clear Storage by pressing the Volume Down button.
Press and release the Power button.
Confirm by pressing the Volume Up for Yes or Volume Down for No.

55
Q

To do a hard reset on an iOS device:

A

Make sure the device has at least 20 percent battery life.

Press the Sleep/Wake and Home buttons simultaneously for 10 seconds.

56
Q

You want to prevent a person from accessing your phone while you step away from your desk. What should you do?

A. Implement remote backup.
B. Set up a remote wipe program.
C. Configure a screen lock.
D. Install a locator application.

A

C. Configure a screen lock.

57
Q

What does the iOS Simple Passcode allow a person to enter?

A. 4 letter code
B. 6 number PIN
C. 4 digit passcode
D. Alpha-numeric passcode

A

C. 4 digit passcode

58
Q

What do third party apps such as Find iPhone rely on?

A. Passcode
B. Google Apps Device Policy
C. Bluetooth
D. GPS

A

D. GPS

59
Q

Which of the following can be described as removing limitations on iOS?

A. Rooting
B. Jailbreaking
C. Geotracking
D. AV software

A

B. Jailbreaking

60
Q

An application won’t close on an Android smartphone. You’ve tried to Force Stop it to no avail. What should you do?

A. Hard reset the device.
B. Stop the service in Running Services.
C. Soft reset the device.
D. Bring the device to an authorized service center.

A

C. Soft reset the device.

61
Q

Your organization is concerned about a scenario where a mobile device with confidential data is stolen. What should you recommend first?
(Select the best answer.)

A. Remote backup application
B. Remote wipe program
C. Passcode locks
D. Locator application

A

B. Remote wipe program

62
Q

You are concerned with the possibility of jailbreaks on your organization’s iPhones, and viruses on the Android-based devices. What should you implement?

A. AV software
B. Firewall
C. Mobile Device Management
D. Device reset

A

A. AV software

CompTIA A+ (18 decks)

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