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CompTIA A+ > Chapter 18 > Flashcards

Chapter 18 Flashcards

1
Q

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

A

Accelerometer

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2
Q

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

A

Gyroscope

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3
Q

a gyroscope would sense a change in what?p847

A

pitch

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4
Q

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

A

Geolocation

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5
Q

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

A

Magnetometer

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6
Q

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

A

Global Positioning System

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7
Q

The Russian form of GPS, known as.p848

A

Global Navigation Satellite System (GLONASS)

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8
Q

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

A

Geotagging

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9
Q

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

A

Screen Calibration

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10
Q

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

A

Resistive Touchscreens

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11
Q

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

A

indium tin oxide (ITO)

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12
Q

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

A

Capacitive Touchscreens

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13
Q

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

A

instant messaging

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14
Q

(SIP)stands for what?p853

A

Session Initiation Protocol (SIP)

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15
Q

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

A

Short Message Service (SMS)

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16
Q

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

A

Wireless personal area networks (WPANs)

17
Q

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

A

Simple Mail Transfer Protocol (SMTP)

TCP 25

18
Q

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

A

Post Office Protocol (POP)

TCP 110

19
Q

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

A

Internet Message Access Protocol (IMAP)

TCP 143

20
Q

(SSL)stands for what?p883

A

Secure Sockets Layer (SSL)

21
Q

(TLS)stands for what?p883

A

Transport Layer Security (TLS)

22
Q

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

A

465
587 TCP port numbers
995
993

23
Q

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

A

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

24
Q

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

Inbound on POP with SSL

A

smtp .live .com

pop3 .live .com

25
Q

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

A

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

26
Q

(OWA)stands for what?p890

A

Outlook Web App (OWA)

27
Q

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

A

Find My iPhone

28
Q

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

A

two-dimensional map, satellite, and a hybrid version

29
Q

(PRL)stands for what?p909

A

preferred roaming list (PRL)

30
Q

HTC created an early touchscreen software interface called what? p912

A

TouchFLO

31
Q

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

A

Synchronization

32
Q

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

A 
Contacts
Apps  
Email
Photos
Music
Videos

CompTIA A+ (20 decks)

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