Chapter 18 Flashcards Preview

CompTIA A+ > Chapter 18 > Flashcards

Flashcards in Chapter 18 Deck (32):
1

change in velocity, which is a function of speed and direction—of an object.p847

Accelerometer

2

A gyroscope is a sensor that detects rotation around any of three axes, known as roll, pitch, and yaw. p847

Gyroscope

3

a gyroscope would sense a change in what?p847

pitch

4

the relative and absolute positioning of your device from the viewpoint of the planet and space, is an important capability that allows effective navigation and access to personalized services and security features. p848

Geolocation

5

allows a device to sense magnetic fields, such as the one our planet exhibits at the magnetic north pole. p848

Magnetometer

6

To detect the absolute position of a device with respect to the manmade latitude and longitude markings on the surface of the earth, triangulation is required. p848

Global Positioning System

7

The Russian form of GPS, known as.p848

Global Navigation Satellite System (GLONASS)

8

uses similar information to add location information to various forms of media, such as photographs taken with the device and messages sent with the device. p849

Geotagging

9

Any device that, for input, relies on the user pressing against and flexing the outermost layer of material covering the screen occasionally requires the recalibration of the user’s interface with the device’s touch sensors. p849

Screen Calibration

10

The need for recalibration is expected in devices that use a resistive technology to detect touch. p849

Resistive Touchscreens

11

Such devices are built using two layers of sturdy panels separated by an air pocket. One panel is flexible, usually made of plastic, and the other panel is often rigid, usually made of glass. Both panels are coated with what?p850

indium tin oxide (ITO)

12

the same two layers of ITO as used with resistive screens are placed between two pieces of glass, resulting in a very smooth, silky surface to the touch. p850

Capacitive Touchscreens

13

Apple’s iMessage allows _________ over WiFi between capable devices running iOS version 5 and higher or Mac OS X Mountain Lion (10.8) and higher. p853

instant messaging

14

(SIP)stands for what?p853

Session Initiation Protocol (SIP)

15

the mechanism used for standard cellular instant messaging, and does not count against your monthly messaging limits. p853

Short Message Service (SMS)

16

that use Bluetooth for data-link transport are specified by IEEE 802.15.p863

Wireless personal area networks (WPANs)

17

Used to communicate between client and server and between servers to send mail to a recipient’s account.p883

Simple Mail Transfer Protocol (SMTP)
TCP 25

18

Used to communicate between a client and the client’s mail server to retrieve mail with little interaction.p883

Post Office Protocol (POP)
TCP 110

19

Used to communicate between a client and the client’s mail server to retrieve mail with extensive interaction.p883

Internet Message Access Protocol (IMAP)
TCP 143

20

(SSL)stands for what?p883

Secure Sockets Layer (SSL)

21

(TLS)stands for what?p883

Transport Layer Security (TLS)

22

SMTP with SSL
SMTP with TLS
IMAP with SSL/TLS
POP with SSL/TLS What are the TCP port numbers

465
587 TCP port numbers
995
993

23

Gmail Outbound on SMTP with SSL or TLS
Inbound on IMAP with SSL
Inbound on POP with SSL

smtp .gmail .com
imap .gmail .com
pop .gmail .com

24

Live (no IMAP) Outbound on SMTP with SSL (port 25) or TLS
Inbound on POP with SSL

smtp .live .com
pop3 .live .com

25

Yahoo Outbound on SMTP with SSL
Inbound on IMAP with SSL
Inbound on POP with SSL

smtp .mail .yahoo .com
imap .mail .yahoo .com
pop .mail .yahoo .com

26

(OWA)stands for what?p890

Outlook Web App (OWA)

27

The app allows the device to be controlled remotely to lock it, play a sound (even if audio is off), display a message, or wipe it clean.p899

Find My iPhone

28

Find My iPhone feature is turned on in your missing device you have three options for how to view the location what is it.p902

two-dimensional map, satellite, and a hybrid version

29

(PRL)stands for what?p909

preferred roaming list (PRL)

30

HTC created an early touchscreen software interface called what? p912

TouchFLO

31

___________is the act of mirroring all unique changes and additions from each device to the other. p913

Synchronization

32

the most common types of data to be synchronized by all such utilities: p913

Contacts
Apps
Email
Photos
Music
Videos