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CompTIA A+ 1101 2nd Attempt > Mobile Devices > Flashcards

Mobile Devices Flashcards

1
Q

Which size of tablet is a 12”-13” length?

A

Full size

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2
Q

Which size of tablet is a 9”-10” length?

A

Midsize

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3
Q

Which size of tablet is a 7”-8” length?

A

Mini Size

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4
Q

A tablet that can work as a phone, or a large-format smartphone (5” to 6” or larger)

A

Phablet

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5
Q

What kind of bit is a cross?

A

Phillips

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6
Q

What kind of bit is a straight line?

A

Standard/Slotted

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7
Q

What kind of bit is has 6 points?

A

Torx

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8
Q

What kind of bit looks like a 5 petal flower?

A

Pentalobe (MacBooks)

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9
Q

What kind of bit is a square?

A

Robertson

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10
Q

A hardware component that can be replaced in the field as opposed to an electronics repair facility

A

Field Replaceable Unit (FRU)

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11
Q

SO-DIMM for laptops; half the size of desktop memory; What does it stand for?

A

Small Outline Dual In-line Memory Module

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12
Q

What is the size of the M.2 form factor SSD?

A

22mm wide, 30/42/60/80/110mm long

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13
Q

What are the typical sizes of SSDs and hard drives on a laptop?

A

2.5” / 1.8” / M.2

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14
Q

If you need a large amount of memory, which type of drive is best bang for your buck?

A

Spinning hard drives

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15
Q

What are the standard speeds of a spinning disc hard drive?

A

5400rpm and 7200rpm

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16
Q

Which type of drive (SSD or spinning hard disc drive) lasts longer?

A

SSD

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17
Q

Which type of drive (SSD or spinning hard disc drive) is better for speed and tolerates vibration better?

A

SSD

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18
Q

Which type of migration allows you to connect the new drive to the laptop while it is still using the old one?

A

In-place clone

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19
Q

Which type of migration is done when you cannot connect the new drive to the laptop while it is still using the old one, and is typically slower?

A

Backup and restore

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20
Q

This functions as a seeded, psuedo-random-number generator/

A

Hardware tokens

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21
Q

Windows can use devices that are paired to your PC to know when you’re away and lock your PC when those devices go out of range. What is this tool?

A

Dynamic lock

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22
Q

Which type of display turns pixels on or off by allowing light to pass or blocking it?

A

LCD (liquid crystal displays)

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23
Q

What does an LCD display need in order to light?

A

CCFL (Cold Cathode Fluorescent Lamps) Backlighting

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24
Q

What type of power (AC or DC) does CCFL backlighting run on?

A

AC power

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25
Q

Use R/G/B transparent film in front of subpixels

A

LCD Display

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26
Q

Which type of LCD has limited viewing angles, the worst color, fast response time, and is inexpensive?

A

TN (twisted nematic)

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27
Q

Which type of LCD display has wider viewing angles, best color, slower response time?

A

IPS (In-Plane Switching

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28
Q

Which type of LCD display combines the strengths of TN and IPS displays, has the best contrast ratio, but a slower response time?

A

VA (vertical alignment)

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29
Q

What type of backlighting uses semiconductors to convert electricity to light without producing heat and are more efficient and have longer life?

A

LED (light-emitting diodes)

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30
Q

What type of power (AC or DC) do LED displays use for their backlighting?

A

DC

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31
Q

Which type of displays are thinner because they don’t need a backlight, blacks are blacker, and colors are more accurate, as well as being able to bend?

A

OLED (organic light emitting diode) displays

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32
Q

the ability of a display to show x number of dots or pixels in the horizontal dimension by y number of pixels in the vertical dimension

A

Resolution

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33
Q

How many times per second the display controller redraws the display; most common is 60 Hz (60 times per second)

A

Refresh rate

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34
Q

number of bits per pixel available for providing color information to display

A

Color depth (Total # of possible colors - (2^n)^3

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35
Q

The range of visible colors (usually expressed as a percentage) that can be displayed with a given combination of display driver and monitor. The higher the better.

A

color gamut

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36
Q

A circuit or circuit board that converts the DC power that drives most other device circuits into AC power to drive an LCD screen

A

Inverter

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37
Q

What does a “dead” (black or very dim” LCD display mean?

A

It may need a new inverter board or fix the contact

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38
Q

The part of the touchscreen display that digitizes touches and gestures, typically by monitoring the capacitance of a transparent charged conductive layer when a conductor (such as a finger) changes the electric field.

A

Digitizer

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39
Q

In USB, is numerical with one decimal place; defines signaling and data rate

A

USB version

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40
Q

In USB, is the physical shape (connectors, sockets) and electrical details

A

USB Type

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41
Q

USB 2.0 Speed

A

480 Mbps

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42
Q

USB 3.0 Speed

A

5 Gbps (superspeed)

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43
Q

USB 3.1 Speed

A

10 Gbps (SuperSpeed+)

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44
Q

USB 3.2 Speed

A

20 Gbps on Type C

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45
Q

USB 4.0 Speed

A

20-40 Gbps on type C

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46
Q

New name of USB 3.0

A

USB 3.2 Gen 1

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47
Q

New name of USB 3.1

A

USB 3.2 Gen 2

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48
Q

New name of USB 3.2

A

USB 3.2 Gen 2x2

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49
Q

Maximum length of USB 2.0 for rated speed

A

5m

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50
Q

Maximum length of USB 3.x for rated speed

A

roughly 3m but depends by wire gauge

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51
Q

Maximum length of USB 4.0 for rated speed

A

Up to .8m for 40 Gbps; 2m for 20 Gbps

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52
Q

USB Type with a rectangular connector

A

Type A

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53
Q

Number of pins a USB 2.0 Type A has

54
Q

Number of pins a USB 3.x Type A has

55
Q

Color of 3.x connectors, indicating SuperSpeed or SuperSpeed+

56
Q

What shape does a USB Type B have?

A

Hexagonal connector

57
Q

What are USB Type B connectors usually used for?

A

Peripherals like printers, scanners, audio interfaces, etc.

58
Q

How many pins does a USB 2 Type B connector have?

59
Q

How many pins does a USB 3 Type B connector have?

60
Q

How many pins does a Mini-USB type B connector have?

A

5 contacts

61
Q

What are Mini-USB Type B connectors typically used for?

A

Peripherals such as hubs, cameras, Wi-Fi adapters

62
Q

Which USB version does the Mini-USB Type B connector work with?

A

USB 2.0 only

63
Q

How many pins does the Micro-USB Type B have on USB 2?

A

5 contacts

64
Q

How many pins does the Micro-USB Type B have on USB 3)

A

10 contacts

65
Q

What are Micro-USB Type B connectors typically used for?

A

Smartphones & tablets, common on Android Devices

66
Q

How many pins does a USB Type C connector have?

67
Q

What USB Version(s) does USB Type C connectors work with?

A

USB 3.1/3.2/4 & Thunderbolt v3/4

68
Q

How much charging power can a USB C connector handle?

A

up to 100W

69
Q

This type of wire has 2 types of connectors: Mini DisplayPort and USB C

A

Thunderbolt cable

70
Q

Which versions of Thunderbolt does the Mini DisplayPort connector use?

71
Q

Which versions of Thunderbolt does the USB C connector use?

72
Q

How many pins does a Mini DisplayPort connector have?

73
Q

Up to how many devices can a Thunderbolt cable daisy-chain?

A

up to 6 devices

74
Q

What is the speed of v1 Thunderbolt cable?

A

10 Gbps over Mini DisplayPort + PCIe

75
Q

What is the speed of v2 Thunderbolt cable?

A

20 Gbps over Mini DisplayPort + PCIe

76
Q

What is the speed of v3 Thunderbolt cable?

A

40 Gbps over USB-C, basis for USB4

77
Q

What is the speed of v4 Thunderbolt cable?

A

40 Gbps over USB-C, compatible with USB 4, DisplayPort 1.4

78
Q

How many pins does the Lightning cable have?

79
Q

Which Mobile OS devices do Lightning cables support?

A

iOS devices (Apple)

80
Q

What type of cable is an IEEE 1394?

A

FireWire used on pre-2012 Macs

81
Q

What type of uses does a FireWire cable have?

A

Mainly for storage and pro audio/video

82
Q

What is the speed of a FireWire?

A

400 Mbps or 800 Mbps

83
Q

What type of sound does a TRS (tip-ring-sleeve jack have?

84
Q

What type of sound does a TS (tip-sleeve jack have?

85
Q

How many pins does an HDMI cable have?

86
Q

How many pins does a DisplayPort cable have?

87
Q

What is the maximum length for a DisplayPort passive cable?

88
Q

What is the speed for 802.11ax?

A

Up to 14,000 Mbps

89
Q

On which band(s) does 802.11ax function?

A

2.4 or 5 GHz bands

90
Q

What is the distance Bluetooth can work on Class 2 devices?

91
Q

What is the distance Bluetooth can work on Class 1 devices?

A

up to 100m

92
Q

What is the distance Bluetooth can work on Class 3 devices?

93
Q

How many peripheral devices can Bluetooth connect to?

94
Q

What is the maximum distance you can use NFC?

A

about an inch

95
Q

What type of file system do SD cards typically use?

A

FAT32 or exFAT

96
Q

What is the storage capacity for a Standard SD?

97
Q

What is the storage capacity for a SDHC (High Capacity)?

98
Q

What is the storage capacity for a SDXC (eXtended)?

99
Q

What is the storage capacity for a SDUC (Ultra Capacity)?

A

up to 128TB

100
Q

A 15- or 17-digit cell phone identifier; enables a provider to blacklist a stolen device

A

IMEI (International Mobile Equipment Identity)

101
Q

A 15-digit (or less) cellular network user identifier; identifies the user on any and all cellular networks; stored in the SIM card

A

IMSI (International Mobile Subscriber Identity)

102
Q

Which cellular frequency band (GSM or CDMA) is more widely used worldwide, AT&T and T-Mobile in the US)

A

GSM (Global System for Mobiles)

103
Q

Which cellular frequency band (GSM or CDMA) is more widely used in the US, particularly Verizon and Sprint?

A

CDMA (Code Division Multiple Access)

104
Q

What does airplane mode turn off?

A

All the radios: Wi-FI, Cellular, Bluetooth

105
Q

What type of Location Service Method uses data from Wi-Fi hotspots to estimate the devices position?

A

Wi-Fi Positioning System

106
Q

What type of Location Service Method uses antenna towers, signal strengths, and triangulation to estimate the devices position?

A

Cellular Networks

107
Q

What type of Location Service Method uses iBeacons, transmission points used for advertising, and even IP address?

108
Q

T/F: USB 2.0 standard is half-duplex

109
Q

T/F: USB 3.x is half-duplex

A

False: it is full duplex meaning it can send and receive simultaneously

110
Q

What is it called when a bus can send or receive, but not at the same time

A

Half-duplex

111
Q

What 2 main factors determine video cable bandwidth?

A
  1. Resolution of the image
  2. The speed at which the image is redrawn, measured in hertz (Hz) or frames per second (fps).
112
Q

How many data pins does a SATA cable have?

113
Q

How many pins does the SATA power connector have?

114
Q

What is the speed of Version 1 SATA data cables?

115
Q

What is the speed of Version 2 SATA data cables?

116
Q

What is the speed of Version 3 SATA data cables?

117
Q

How many pins does a molex connector have?

118
Q

These cables connect power to internal storage devices; generally a legacy component; usually white or clear plastic

A

Molex connector

119
Q

Connector with 15 pins; D-shell type; supports resolutions up to HD

A

Video Graphics Array (VGA)

120
Q

a legacy parallel bus; can control multiple devices attached by internal ribbon cables or external cables; connection of internal hard disk drives;

A

Small computer system interface (SCSI)

121
Q

SCSI data rate

A

Up to 320 MBps

122
Q

Number of pins in a SCSI cable

A

68 pin or 80 pin

123
Q

dominant interface for enterprise-class storage devices in the PC workstation and server market

A

serial attached SCSI (SAS)

124
Q

Incoming e-mail server type designed to download emails, then marks them for deletion on server; designed for 1 client, 1 device

A

POP3 (Post office protocol)

125
Q

Incoming e-mail server type designed to leave emails on server until user deletes them; designed for any client, any device

A

IMAP (Internet Message Access Protocol)

126
Q

Incoming e-mail server type designed to facilitate features such as synchronized calendars, contacts, shared address books, etc; typically on Microsoft Outlook

A

Messaging Application Program Interface (MAPI)

127
Q

A technology for encrypting traffic between the mobile device you’re configuring and the email server

A

SSL (Secure Sockets Layer)

128
Q

What is the port for Incoming mail SSL?

A

995 or 993

129
Q

What is the port for outgoing mail SSL?

130
Q

Mail protocol that provides encryption, Authentication, and message integrity; provides end-to-end security; requires certificate (PKI)

A

S/MIME (Secure Multipurpose Internet Mail Extensions)

131
Q

Software facilitating the monitoring, securing, and administration of mobile devices, typically corporate-owned devices and typically across multiple platforms

A

MDM (Mobile Device Management

CompTIA A+ 1101 2nd Attempt (5 decks)

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