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CompTIA A+ > Mobile Devices > Flashcards

Mobile Devices Flashcards

1
Q

when a portable computer is in standby mode, which component maintains power to documents and applications?

A

Random Access Memory (RAM)

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2
Q

In relation to mobile networks, what does the acronym GSM denote?

A

Global System for Mobile Communication

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3
Q

In which touch technology can more than one finger work with the interface at the same time?

A

multitouch

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4
Q

what does the acronym LED denote?

A

Light-emitting diode

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5
Q

which key on a notebook computer allows you to use letter keys to input numbers?

A

The Num Lock Key

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6
Q

which version of IEEE 1394 is also called FireWire 800?

A

IEEE 1394b

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7
Q

In mobile device displays, what does the acronym IPS denote?

A

In-Plane Switching

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8
Q

what is the purpose of a digitizer within a touch-screen display?

A

It recognizes touch signals and converts them into data inputs that the device can recognize.

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9
Q

What should you do after connecting a touch screen monitor to your computer?

A

Calibrate the monitor

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10
Q

In Android mobile devices, from which source does the GPS obtain its information?

A

satellites

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11
Q

Which two keys combination on a laptop should you use to also enable an external monitor with the laptop?

A

Fn + screen key

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12
Q

Which type of mobile device synchronization occurs automatically?

A

Push Synchronization

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13
Q

what are the two primary touch technologies used in mobile devices?

A

touch flow and multitouch

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14
Q

which type of e-mail server can be configured as outgoing e-mail servers?

A

SMTP

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15
Q

when will a user know that the Linthium-ion battery of a portable computer has worn out?

A

The battery charge depletes before the documented backup time

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16
Q

what is the purpose of a baseband update on a cell phone?

A

it will update the radio firmware

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17
Q

What are wearable technology devices?

A

Smart watches, fitness monitors, glasses, and headsets

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18
Q

What does an extended display do?

A

it increases the desktop area to include all monitors connected to the computer

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19
Q

which component of an LCD is responsible for converting the DC power back into AC?

A

the inverter

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20
Q

What does the acronym BYOD denote?

A

Bring Your Own Device

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21
Q

which keyboard key works like a Shift key to activate the second function of a dual-purpose key?

A

Fn

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22
Q

What is the primary interface used in mobile devices?

A

touch screen

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23
Q

In relation to mobile devices, what does the acronym MDM denote?

A

Mobile Device Management

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24
Q

what services are disabled when an iPhone is placed in Airplane Mode?

A

Cellular (both voice and data), Wi-Fi, Bluetooth, GPS, and Location Services

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25
Q

what does a mirrored display do?

A

It shows the same desktop as that of the primary display.

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26
Q

what is Near Field Communication (NFC)?

A

a low-power communications protocol for short ranges between two devices

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27
Q

What does the acronym SODIMM denote?

A

Small Outline Dual Inline Memory Module

28
Q

which type of incoming e-mail server will allow the status of e-mails to be the same across all devices that access the e-mail?

A

IMAP

29
Q

What is the term for computer components you can remove and replace components without a system reboot?

A

hot swappable

30
Q

In regards to displays, what does the acronym OLED denote?

A

Organic Light-Emitting Diode

31
Q

What are the main advantages of using a Twisted Nematic (TN) LCD display over other display technologies?

A

The main benefits of a Twisted Nematic LCD are:
- Lower Production costs
- Lower power draws
-Faster response times and speeds

32
Q

In relation to mobile networks, what does the acronym CDMA denote?

A

Code-Division Multiple Access

33
Q

What services are disabled when an Android device is placed in Airplane Mode?

A

Cellular, WiFi and Bluetooth

34
Q

Which mode of communication does Bluetooth wireless technology use?

A

radio waves

35
Q

what does the acronym NFC denote?

A

Near-Field Communication

36
Q

What does the acronym OLED denote?

A

Organic Light-Emitting Diode

37
Q

Which type of mobile device synchronization must be manually started?

A

Pull Synchronization

38
Q

What does the acronym LCD denote?

A

Liquid Crystal Display

39
Q

What is In-Plane Switching (IPS)?

A

IPS is a display technology that uses a layer of liquid crystals placed between two glass surfaces that have their molecules aligned parallel to those surfaces’ directions.

40
Q

what attaches to the LCD screen to allow the device to read any touch movements from the user, including swiping, pinching, touching, and other movements?

A

A digitizer

41
Q

How did IPS improve LCD displays?

A

It solved the strong viewing angle dependence and improved the low-quality color reproduction found in older LCD displays.

42
Q

which feature of a mobile device allows the physical location of the mobile device to be tracked?

A

The GPS

43
Q

which wireless technology allows a portable computer to communicate with other devices, such a mouse, printer, or modem, using the least amount of power consumption?

A

Bluetooth

44
Q

Which power connector is used by Parallel Advanced Technology Attachment (PATA) drive in portable computers?

A

The Four-Pin Molex connector

45
Q

Which laptop hard drive interface does not support hot swapping?

A

PATA

46
Q

What is the purpose of the diffuser in a LCD display?

A

It takes the points of light and uniformly spreads them out over the entire area of display.

47
Q

What is the four-step process for connecting an iPhone to another device via Bluetooth?

A
  1. Enable Bluetooth on both devices.
  2. On the remote device, enable pairing.
  3. On the iPhone, find and select the device
  4. Enter the appropriate PIN.
48
Q

Which iPhone feature turns your iPhone into a wireless access point?

A

Personal Hotspot

49
Q

Which window feature allows you to preserve your portable computer batteries by saving the contents of memory to the disk so they will be available the next time you log in?

A

the Hibernate feature

50
Q

In relation to mobile devices, what does the acronym MAM denote?

A

Mobile Application Management

51
Q

what is the most common battery type used with laptop?

A

Linthium-ion battery (Li-Ion)

52
Q

Which component of an LCD display illuminates the display?

A

the backlight

53
Q

In which touch technology does finger movement (up, down, left, right) control how the screen scrolls?

A

touch flow

54
Q

Where should you check to determine the size of the hard disk supported by your laptop?

A

On the laptop manufacturer’s Web site or inside the laptop’s case

55
Q

What is tethering?

A

A feature that configures a mobile device so that another device can use the first device’s Internet connection

56
Q

What are the three types of FireWire connectors?

A

4-pin, 6-pin, and 9-pin

57
Q

Which two types of e-mail servers can be configured as incoming email servers?

A

POP3 or IMAP

58
Q

How does a lower clock speed on a portable computer, as compared to a desktop, affect the front-side bus?

A

The lower clock speeds in a portable computer mean that there is a lower multiplier. This enables the front-side bus to be increase to a higher level before the overclocker runs into a clock-speed barrier.

59
Q

What is ACPI?

A

Advanced Configuration and Power Interface (ACPI) is a technology that configures computers to optimize power consumption.

60
Q

What services are disabled when an Android device is placed in Airplane Mode?

A

Cellular, WiFi, and Bluetooth

61
Q

In iPhones, from which sources do the GPS obtain its information?

A

satellites, cell towers, and WiFi

62
Q

what does the acronym GPS denote?

A

Global Positioning System

63
Q

What are some differences between portable and desktop computers, other than size?

A

Portable computers have lower voltages, lower clock speeds, produce less heat, and use less power

64
Q

what do you require in order to add expansion cards to a laptop computer?

A

a docking station

65
Q

what is the process whereby data on your mobile device, including pictures, music, and contacts, is uploaded to your desktop computer or online cloud account?

A

synchronization

66
Q

How are vertical Alignment (VA) displays different than TN or IPS LCDs?

A

A VA LCD finds a balance between the two by providing good response time, viewing angle performance, and better color reproduction

67
Q

Which cell phone update is automatic: PRI update or PRL update?

A

PRI update

CompTIA A+ (4 decks)

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