1. Mobile Devices (15%)

Question 1

Biometrics

Answer 1

the use of a body part to allow access to log in or unlock a mobile device

Question 2

Liquid crystal display (LCD)

Answer 2

a popular flat-display type found on laptops that uses liquid crystals, which display an image when charged.

• relatively lightweight and don’t consume much power
• use a panel of light- emitting diodes (LEDs) instead, which consume less energy, run cooler, and live longer than fluorescent bulbs

Question 3

In-plane switching (IPS)

Answer 3

are the shifting patterns of their liquid crystals in viewing devices to overcome viewing angle limitations to creates better viewing angles

• are ideal for those seeking the best color experience, such as graphic designers and video artists
• best choice for someone who wants to mount them vertically, like a lot of programmers do

Question 4

Twisted nematic (TN)

Answer 4

a common type of liquid-crystal display (LCD) that consists of a substance called a Nematic Liquid crystal that is confined between two plate of polarized glass

• It has somewhat restricted viewing angle and not the best color reproduction
• That makes them a popular choice for competitive gamers.
• They’re not the best choice for high- end video needs, but they are inexpensive, which also makes them good for everyday office use

Question 5

Vertical alignment (VA)

Answer 5

is a type of LCD technology that’s characterized by vertically aligned pixels

• the best contrast ratios of the three, meaning the difference between the dark and bright colors is the best
• Color reproduction tends to be good but not quite as good as IPS, and this type of monitors do have a bit more lag

Question 6

Organic light-emitting diode (OLED)

Answer 6

are the image- producing parts of the display and the light source

• can be made flexible, which is not only cool, but it allows it to function in places where other display technologies could never work
• there is no need for a backlight, so power consumption is less than it is in LCD panels

Question 7

Inverter

Answer 7

provides power to the backlight, and the screen displays the picture

Question 8

Digitizer/Touch screen

Answer 8

take physical input (such as touch) and turn it into electronic data

Question 9

Lightning Cable

Answer 9

a small connection cable used with Apple’s mobile devices (and even some accessories) that charges and connects the devices to computer

Question 10

Serial Interfaces (SCI)

Answer 10

is a device that enables the serial (one bit of a time) exchange of data between a microprocessor and peripherals such as printers, external drives, scanners, or mice

• laptops has two connections: USB & HDMI or Thunderbolt

Question 11

Near Field Communication (NFC)

Answer 11

is primarily used for mobile commerce and applications like scanning RFID tags, but it could be used for accessories as well

• a very limited range (about 10 centimeters, or 4”)

Question 12

Hotspot

Answer 12

is a location where people can get Internet access on a wireless network, typically in a public location such as a restaurant or library

Question 13

Touchpen

Answer 13

also known as a stylus, is a pen- shaped accessory used to write with or as a pointer

• act as an input device on a touch screen, enabling freeform writing, drawing, or clicking through answers to a questionnaire, such as at a medical office

Question 14

Docking Station

Answer 14

is a device that a laptop can be plugged into that replicates common laptop ports, and may also have full- sized bays for PC desktop expansion cards and storage devices, such as hard drives and optical drives

Question 15

Port Replicator

Answer 15

will replicate laptop ports but does not usually have expansion bays

Question 16

Trackpad/drawing pad

Answer 16

The purpose is to allow people to take notes or create drawings that are displayed on a computer screen and stored in a digital format

Question 17

Third Generation (3G)

Answer 17

was first introduced in 1998, it specified a minimum data download rate of 200 Kbps.

• introduced internet access and video streaming and GSM & CDMA

Question 18

Second Generation (2G)

Answer 18

became commercially available in 1991

• a maximum data rate of 64 Kbps and with it you could send text messages, read emails, and in theory access the Internet
• introduces text messaging

Question 19

Fourth Generation (4G)

Answer 19

In 2008 came into the market

• is designed to use IP instead of traditional telephone circuits
• download speeds of 10–20 Mbps and upload speeds of 3–10 Mbps
• improved on streaming, uploads and download speeds

Question 20

Fifth Generation (5G)

Answer 20

announced in 2016, but it took until late 2018 for cellular providers to start test piloting this

• able to get sustained wireless speeds in excess of 1 Gbps
• three classification: Enhanced Mobile Broadband (eMBB), Ultra- Reliable Low- Latency Communications (URLLC), & Massive Machine Type Communications (mMTC)
• improved on all of the above

Question 21

Global System for Mobile Communications (GSM)

Answer 21

the most popular, boasting over 1.5 billion users in 210 countries.

• AT&T and T- Mobile used this

Question 22

Code-Division Multiple Access (CDMA)

Answer 22

which was developed by Qualcomm and available only in the United States

• Sprint (which has since merged with T-Mobile) and Verizon used this

Question 23

Preferred Roaming List (PRL) updates

Answer 23

is the reference guide the phone uses to connect to the proper cell phone tower when roaming

• updates also normally happen when the primary OS on the phone is updated
• used for CDMA

Question 24

Global Positioning System (GPS)

Answer 24

is a satellite-based navigation system that provides location and time services

• is accurate within 100 meters

Question 25

Cellular location services

Answer 25

is designed to do the same thing GPS does, such as provide a user’s location or help navigate a route to a destination

• only accurate within about 1,000 meters

Question 26

Mobile device management
(MDM)

Answer 26

is software that allows IT to automate control, and secure administrative policies on laptop, smartphones, tablets, or any other device connected to an organization’s network

• a software package residing on a server

Question 27

mobile application
management (MAM)

Answer 27

allows network administrators to remotely install, delete, encrypt, and wipe corporate applications and related data from mobile devices

• administrators can specify software packages that are allowed to be installed on the mobile device and prohibit others that could pose security risks

Question 28

Two-factor authentication

Answer 28

electronic authentication method in which a user is granted access to a website or application only after successfully presenting two or more pieces of evidence to authenticate an user

• A common implementation is to require a PIN from a security token, which changes every 30 seconds

Question 29

USB C

Answer 29

an industry-standard connector with a symmetrical design used for transmitting both data and power on a single cable

Question 30

Micro USB

Answer 30

is a much smaller, five-pin version of a standard USB connector, with two crimped sides that give it a trapezoid shape

Question 31

Cellular networks

Answer 31

are used to communicate to internet using a mobile device.

• uses 3G, 4G, and 5G
• enables the transfer of voice, video, and data

Question 32

IMEI (International Mobile Equipment Identity)

Answer 32

is a unique number for identifying a device on a mobile network

Question 33

IMSI (International Mobile Subscriber Identity)

Answer 33

a unique number assigned to a SIM card used it identify the mobile user of the mobile network

Question 34

Corporate Email Configuration

Answer 34

email that is configured, maintained, and paid for by a company that wants the accounts used for business purposes

Question 35

Corporate Application Mobile Device

Answer 35

any application that a business can customize to fit its needs