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A+ Chapter 1 > Chapter 11 > Flashcards

Chapter 11 Flashcards

1
Q

Which of the following is the most common input method for mobile devices?

Stylus
Resistive touch screen
Capacitive touch screen
Keyboard and mouse

A

C. Most mobile devices today use capacitive touch screens, which allow the user to use their finger as an input device. Resistive touch screens sense pressure, and a stylus is commonly used with them. Keyboards and mice are too large for most mobile devices.

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2
Q

Which of the following is the operating system used by Apple Watch?

watchOS
iOS
macOS
AppleOS

A

A. Apple created a new OS for its watch called watchOS. It’s very similar to iOS but designed for the smaller screen. macOS is Apple’s desktop OS, and there is no current AppleOS.

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3
Q

Multi-touch refers to which feature of a touch screen device?

The ability to touch multiple parts of the screen at once to provide input
The ability to touch the screen multiple times consecutively as part of the same input stream
The ability for multiple people to use the touch screen device
The ability to use a stylus or a finger as an input device

A

A. Multi-touch simply means that the touch screen can accept multiple inputs from different parts of the screen at the same time. This allows for functionality such as pinch to zoom. It could mean that multiple people are using the touch screen at once, but it does not have to mean that.

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4
Q

The type of display that Google Glass presents to its users is called what?

Retinal projection
VR
AR
OCR

A

C. Google Glass uses augmented reality (AR) technology, which is common on heads-up types of displays. Virtual reality (VR) is provided by devices such as Oculus Rift. There is no retinal projection display used with mobile devices. OCR stands for optical character recognition, which is not a technology covered in this chapter or on the A+ exam. (It’s used to translate documents after they’ve been scanned in on a scanner.)

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5
Q

Which of the following devices was the first commercial tablet computer in the marketplace?

Microsoft Surface Pro
Tablet PC
iPad
GRiDPad

A

D. Released in 1989, GRiDPad was the first commercial tablet. None of the others were released until at least the year 2000.

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6
Q

Which iPhone version introduced the Lightning connector?

iPhone 4
iPhone 5
iPhone 6
iPhone 8

A

B. The iPhone 5 was the first iPhone to use the Lightning connector. All newer iPhones use it as well.

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7
Q

You have a mobile touch screen device with a screen size of 11″. What is the most likely classification of this device?

Tablet
Phablet
Smartphone
GPS

A

A. Tablets generally have a screen size between 7″ and 13″. Phablets were historically between 5″ and 7″, and smartphones are smaller than phablets. GPS touch screens are usually around the same size as the screens on smartphones.

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8
Q

You need to set up a Bluetooth headset for a user. He wants to know the farthest he can be away from his phone and still have it work. You do not have the documentation handy. What is the most likely maximum range that this Bluetooth accessory will have?

10 centimeters
10 meters
100 meters
1 kilometer

A

B. Most mobile Bluetooth accessories are Class 2 devices, which have a maximum functional range of 10 meters. The actual range will depend on the headset’s properties.

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9
Q

Apps for Android-based smartphones and tablets can be downloaded from which store?

App Store
Google Play
Android Store
Microsoft Store

A

B. The app store for Android-based devices is Google Play. iOS devices download apps from the App Store. Windows-based apps can be downloaded from the Microsoft Store.

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10
Q

You are configuring wireless communication for several smartphones. Which of the following wireless communication methods has the shortest operational range?

Wi-Fi
Bluetooth
NFC
IR

A

C. Near field communication (NFC) has a maximum range of about 10 centimeters. Wi-Fi depends on the standard, but it usually has a range of 30 meters or more. Bluetooth Class 2 devices can operate at about 10 meters, and infrared (IR) has a maximum range of about 1 meter.

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11
Q

One of your friends wants to play a console-based game on her tablet. What type of accessory would you most recommend she connect and configure to help the experience?

VR headset
Game pad
AR headset
Extra battery pack

A

B. For game players, a game pad or gaming controller may be a good accessory to have. VR headsets could also be good, but only for certain games. An AR headset isn’t likely to help with gaming. An extra battery pack could help extend the playing time, but it isn’t needed if the tablet is plugged in.

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12
Q

A user is concerned about security after setting up wireless communications on his tablet. Which wireless communication method has an operational range of about 1 meter and a viewing angle of about 30 degrees?

Wi-Fi
Bluetooth
NFC
IR

A

D. Infrared has an operational range of about 1 meter. Near field communication (NFC) has a maximum range of about 10 centimeters. Wi-Fi depends on the standard, but it usually has a range of 30 meters or more. Bluetooth Class 2 devices can operate at about 10 meters.

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13
Q

Which of the following are advantages of e-readers using E Ink over tablets? (Choose two.)

More vivid colors
Longer battery life
Easier to read in bright light
Better screen resolution

A

B, C. E-readers that use electrophoretic ink (E Ink) have a longer battery life than tablets and are easier to read in bright light conditions. They do not have more vivid colors or better screen resolution.

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14
Q

You are explaining various connection types to new corporate smartphone and tablet users. Which of the following best describes the concept of tethering?

When a cellular device uses another device’s Wi-Fi connection to get on the Internet
When a Bluetooth device uses another device’s Wi-Fi connection to get on the Internet
When a Wi-Fi device uses another device’s Bluetooth connection to get on the Internet
When a Wi-Fi device uses another device’s cellular connection to get on the Internet

A

D. Tethering is when a Wi-Fi enabled device attaches to a cellular device to get on the Internet. The cellular device is usually called a mobile hotspot.

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15
Q

What is the number of active satellites used by GPS?

12
24
30
36

A

B. GPS uses 24 satellites. There are 32 GPS satellites in space, but the extra 8 are backups.

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16
Q

You are configuring NFC for a smartphone user. He is concerned about the maximum data transfer rates of the technology. What is the fastest data transfer speeds currently supported by NFC?

106 Kbps
212 Kbps
424 Kbps
636 Kbps

A

C. The fastest NFC can transfer data is 424 Kbps. The three speeds supported by NFC are 106 Kbps, 212 Kbps, and 424 Kbps. NFC does not currently support 636 Kbps.

17
Q

A user wants to attempt to ensure that their boss can’t see where they are, based on tracking their iPhone. Which option should they disable?

Location Services
GPS
Tracking Services
Airplane Mode

A

A. Apple calls its GPS services Location Services. For the phone to use GPS (and to be tracked), Location Services should be enabled. There is no Apple service called Tracking Services. Airplane Mode would turn off GPS (and Location Services), but it needs to be enabled, not disabled.

18
Q

Which of the following is the name of the protocol used to transmit data in NFC peer-to-peer mode?

NDEF
NFCP
LLCP
SNEP

A

D. NFC uses Simple NDEF Exchange Protocol (SNEP) in peer-to-peer mode. It’s based on LLCP (Logical Link Control Protocol).

19
Q

Which GPS component is responsible for triangulation?

Satellites
Ground control network
Receiver
All three combined

A

C. It’s the receiver’s job to perform triangulation to determine its position based on data received from the satellites. Satellites send signals to the GPS receiver to help it determine its location. The ground control network monitors the status of the satellites and signal strength.

20
Q

You need to provide users with memory cards that hold enough data for their needs. How much data can a microSDXC memory card hold?

4 GB
32 GB
128 GB
2 TB

A

D. MicroSDXC cards can hold up to 2 TB. SDHC cards can hold up to 32 GB, and standard SD cards can hold up to 4 GB.

A+ Chapter 1 (18 decks)

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