Mobile Devices Flashcards
1
Q
Which size of tablet is a 12”-13” length?
A
Full size
2
Q
Which size of tablet is a 9”-10” length?
A
Midsize
3
Q
Which size of tablet is a 7”-8” length?
A
Mini Size
4
Q
A tablet that can work as a phone, or a large-format smartphone (5” to 6” or larger)
A
Phablet
5
Q
What kind of bit is a cross?
A
Phillips
6
Q
What kind of bit is a straight line?
A
Standard/Slotted
7
Q
What kind of bit is has 6 points?
A
Torx
8
Q
What kind of bit looks like a 5 petal flower?
A
Pentalobe (MacBooks)
9
Q
What kind of bit is a square?
A
Robertson
10
Q
A hardware component that can be replaced in the field as opposed to an electronics repair facility
A
Field Replaceable Unit (FRU)
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
12
Q
What is the size of the M.2 form factor SSD?
A
22mm wide, 30/42/60/80/110mm long
13
Q
What are the typical sizes of SSDs and hard drives on a laptop?
A
2.5” / 1.8” / M.2
14
Q
If you need a large amount of memory, which type of drive is best bang for your buck?
A
Spinning hard drives
15
Q
What are the standard speeds of a spinning disc hard drive?
A
5400rpm and 7200rpm
16
Q
Which type of drive (SSD or spinning hard disc drive) lasts longer?
A
SSD
17
Q
Which type of drive (SSD or spinning hard disc drive) is better for speed and tolerates vibration better?
A
SSD
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
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
20
Q
This functions as a seeded, psuedo-random-number generator/
A
Hardware tokens
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
22
Q
Which type of display turns pixels on or off by allowing light to pass or blocking it?
A
LCD (liquid crystal displays)
23
Q
What does an LCD display need in order to light?
A
CCFL (Cold Cathode Fluorescent Lamps) Backlighting
24
Q
What type of power (AC or DC) does CCFL backlighting run on?
A
AC power
25
Use R/G/B transparent film in front of subpixels
LCD Display
26
Which type of LCD has limited viewing angles, the worst color, fast response time, and is inexpensive?
TN (twisted nematic)
27
Which type of LCD display has wider viewing angles, best color, slower response time?
IPS (In-Plane Switching
28
Which type of LCD display combines the strengths of TN and IPS displays, has the best contrast ratio, but a slower response time?
VA (vertical alignment)
29
What type of backlighting uses semiconductors to convert electricity to light without producing heat and are more efficient and have longer life?
LED (light-emitting diodes)
30
What type of power (AC or DC) do LED displays use for their backlighting?
DC
31
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?
OLED (organic light emitting diode) displays
32
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
Resolution
33
How many times per second the display controller redraws the display; most common is 60 Hz (60 times per second)
Refresh rate
34
number of bits per pixel available for providing color information to display
Color depth (Total # of possible colors - (2^n)^3
35
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.
color gamut
36
A circuit or circuit board that converts the DC power that drives most other device circuits into AC power to drive an LCD screen
Inverter
37
What does a "dead" (black or very dim" LCD display mean?
It may need a new inverter board or fix the contact
38
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.
Digitizer
39
In USB, is numerical with one decimal place; defines signaling and data rate
USB version
40
In USB, is the physical shape (connectors, sockets) and electrical details
USB Type
41
USB 2.0 Speed
480 Mbps
42
USB 3.0 Speed
5 Gbps (superspeed)
43
USB 3.1 Speed
10 Gbps (SuperSpeed+)
44
USB 3.2 Speed
20 Gbps on Type C
45
USB 4.0 Speed
20-40 Gbps on type C
46
New name of USB 3.0
USB 3.2 Gen 1
47
New name of USB 3.1
USB 3.2 Gen 2
48
New name of USB 3.2
USB 3.2 Gen 2x2
49
Maximum length of USB 2.0 for rated speed
5m
50
Maximum length of USB 3.x for rated speed
roughly 3m but depends by wire gauge
51
Maximum length of USB 4.0 for rated speed
Up to .8m for 40 Gbps; 2m for 20 Gbps
52
USB Type with a rectangular connector
Type A
53
Number of pins a USB 2.0 Type A has
4 pins
54
Number of pins a USB 3.x Type A has
9 pins
55
Color of 3.x connectors, indicating SuperSpeed or SuperSpeed+
blue
56
What shape does a USB Type B have?
Hexagonal connector
57
What are USB Type B connectors usually used for?
Peripherals like printers, scanners, audio interfaces, etc.
58
How many pins does a USB 2 Type B connector have?
4 pins
59
How many pins does a USB 3 Type B connector have?
9 pins
60
How many pins does a Mini-USB type B connector have?
5 contacts
61
What are Mini-USB Type B connectors typically used for?
Peripherals such as hubs, cameras, Wi-Fi adapters
62
Which USB version does the Mini-USB Type B connector work with?
USB 2.0 only
63
How many pins does the Micro-USB Type B have on USB 2?
5 contacts
64
How many pins does the Micro-USB Type B have on USB 3)
10 contacts
65
What are Micro-USB Type B connectors typically used for?
Smartphones & tablets, common on Android Devices
66
How many pins does a USB Type C connector have?
24 pins
67
What USB Version(s) does USB Type C connectors work with?
USB 3.1/3.2/4 & Thunderbolt v3/4
68
How much charging power can a USB C connector handle?
up to 100W
69
This type of wire has 2 types of connectors: Mini DisplayPort and USB C
Thunderbolt cable
70
Which versions of Thunderbolt does the Mini DisplayPort connector use?
v1 and v2
71
Which versions of Thunderbolt does the USB C connector use?
v3 and v4
72
How many pins does a Mini DisplayPort connector have?
20 pins
73
Up to how many devices can a Thunderbolt cable daisy-chain?
up to 6 devices
74
What is the speed of v1 Thunderbolt cable?
10 Gbps over Mini DisplayPort + PCIe
75
What is the speed of v2 Thunderbolt cable?
20 Gbps over Mini DisplayPort + PCIe
76
What is the speed of v3 Thunderbolt cable?
40 Gbps over USB-C, basis for USB4
77
What is the speed of v4 Thunderbolt cable?
40 Gbps over USB-C, compatible with USB 4, DisplayPort 1.4
78
How many pins does the Lightning cable have?
8 pins
79
Which Mobile OS devices do Lightning cables support?
iOS devices (Apple)
80
What type of cable is an IEEE 1394?
FireWire used on pre-2012 Macs
81
What type of uses does a FireWire cable have?
Mainly for storage and pro audio/video
82
What is the speed of a FireWire?
400 Mbps or 800 Mbps
83
What type of sound does a TRS (tip-ring-sleeve jack have?
Stereo
84
What type of sound does a TS (tip-sleeve jack have?
Mono
85
How many pins does an HDMI cable have?
19 pins
86
How many pins does a DisplayPort cable have?
20 pins
87
What is the maximum length for a DisplayPort passive cable?
3m max
88
What is the speed for 802.11ax?
Up to 14,000 Mbps
89
On which band(s) does 802.11ax function?
2.4 or 5 GHz bands
90
What is the distance Bluetooth can work on Class 2 devices?
<10m
91
What is the distance Bluetooth can work on Class 1 devices?
up to 100m
92
What is the distance Bluetooth can work on Class 3 devices?
<1m
93
How many peripheral devices can Bluetooth connect to?
7
94
What is the maximum distance you can use NFC?
about an inch
95
What type of file system do SD cards typically use?
FAT32 or exFAT
96
What is the storage capacity for a Standard SD?
4MB-2GB
97
What is the storage capacity for a SDHC (High Capacity)?
4-32GB
98
What is the storage capacity for a SDXC (eXtended)?
4GB-2TB
99
What is the storage capacity for a SDUC (Ultra Capacity)?
up to 128TB
100
A 15- or 17-digit cell phone identifier; enables a provider to blacklist a stolen device
IMEI (International Mobile Equipment Identity)
101
A 15-digit (or less) cellular network user identifier; identifies the user on any and all cellular networks; stored in the SIM card
IMSI (International Mobile Subscriber Identity)
102
Which cellular frequency band (GSM or CDMA) is more widely used worldwide, AT&T and T-Mobile in the US)
GSM (Global System for Mobiles)
103
Which cellular frequency band (GSM or CDMA) is more widely used in the US, particularly Verizon and Sprint?
CDMA (Code Division Multiple Access)
104
What does airplane mode turn off?
All the radios: Wi-FI, Cellular, Bluetooth
105
What type of Location Service Method uses data from Wi-Fi hotspots to estimate the devices position?
Wi-Fi Positioning System
106
What type of Location Service Method uses antenna towers, signal strengths, and triangulation to estimate the devices position?
Cellular Networks
107
What type of Location Service Method uses iBeacons, transmission points used for advertising, and even IP address?
Bluetooth
108
T/F: USB 2.0 standard is half-duplex
True
109
T/F: USB 3.x is half-duplex
False: it is full duplex meaning it can send and receive simultaneously
110
What is it called when a bus can send or receive, but not at the same time
Half-duplex
111
What 2 main factors determine video cable bandwidth?
1. Resolution of the image
2. The speed at which the image is redrawn, measured in hertz (Hz) or frames per second (fps).
112
How many data pins does a SATA cable have?
7 pins
113
How many pins does the SATA power connector have?
15 pins
114
What is the speed of Version 1 SATA data cables?
150 MBps
115
What is the speed of Version 2 SATA data cables?
300 MBps
116
What is the speed of Version 3 SATA data cables?
600 MBps
117
How many pins does a molex connector have?
4 pins
118
These cables connect power to internal storage devices; generally a legacy component; usually white or clear plastic
Molex connector
119
Connector with 15 pins; D-shell type; supports resolutions up to HD
Video Graphics Array (VGA)
120
a legacy parallel bus; can control multiple devices attached by internal ribbon cables or external cables; connection of internal hard disk drives;
Small computer system interface (SCSI)
121
SCSI data rate
Up to 320 MBps
122
Number of pins in a SCSI cable
68 pin or 80 pin
123
dominant interface for enterprise-class storage devices in the PC workstation and server market
serial attached SCSI (SAS)
124
Incoming e-mail server type designed to download emails, then marks them for deletion on server; designed for 1 client, 1 device
POP3 (Post office protocol)
125
Incoming e-mail server type designed to leave emails on server until user deletes them; designed for any client, any device
IMAP (Internet Message Access Protocol)
126
Incoming e-mail server type designed to facilitate features such as synchronized calendars, contacts, shared address books, etc; typically on Microsoft Outlook
Messaging Application Program Interface (MAPI)
127
A technology for encrypting traffic between the mobile device you're configuring and the email server
SSL (Secure Sockets Layer)
128
What is the port for Incoming mail SSL?
995 or 993
129
What is the port for outgoing mail SSL?
465
130
Mail protocol that provides encryption, Authentication, and message integrity; provides end-to-end security; requires certificate (PKI)
S/MIME (Secure Multipurpose Internet Mail Extensions)
131
Software facilitating the monitoring, securing, and administration of mobile devices, typically corporate-owned devices and typically across multiple platforms
MDM (Mobile Device Management
