Chapter 18: Mobile Devices Flashcards
Which of the following is not a difference between iOS and Android?
A. Android is not a proprietary operating system.
B. You can download iOS apps from only one place.
C. You can make a cellular phone call from all Android devices.
D. It costs more to be a developer of iOS apps.
C.
There is no requirement of either operating system that the devices they are on have cellular calling capability.
By what name was Google Play formerly known?
A. Google Market
B. Android Market
C. Android Play
D. App Store
B.
Google Play used to be called the Android Market.
The App Store is Apple’s equivalent.
Bob’s iPhone 4S cannot detect when he turns his device to the left and right like it’s a
steering wheel.
Games and other apps that require this motion will not work correctly as a result.
Which component has failed in Bob’s phone?
A. Gyroscope
B. Accelerometer
C. Magnetometer
D. GPS
A.
Three gyroscopes are used to detect roll, pitch, and yaw.
The problem is with the gyroscope that detects yaw.
The accelerometer would be suspect if the iPhone were not detecting flat movement to the side or forward and backward.
The magnetometer can only help with compass headings and the GPS with geographical positioning.
Which of the following is more likely to be associated with a resistive touchscreen versus a capacitive one?
A. You won’t have to apply as much pressure.
B. You will need to recalibrate it.
C. You will have to clean it more often for optimal functionality.
D. You can use the pad of your finger instead of your fingernail.
B.
Resistive touchscreens require pressure to actuate them, while capacitive ones do not and instead can be actuated by the fleshy part of the human finger.
Body oils, moisture, and dirt are not as detrimental to the effectiveness of resistive screens as they are to capacitive screens.
Which of the following are text-messaging services used with mobile devices? (Choose two.)
A. SMS B. SIP C. Androtext D. iOS Messaging E. iMessage
A, E.
SMS is the most widely supported text-messaging service, across all platforms and
service providers.
Apple’s iMessage is a proprietary service that does not require cellular access to send text messages.
Which of the following is not a valid reason to disable cellular data networking?
A. You have a limited amount of data in your monthly plan.
B. You have access to a reliable WiFi signal.
C. You are about to download an update to your phone.
D. Your phone calls are going out over your carrier’s cellular network.
D.
Whenever you have a reliable WiFi signal available that you do not pay for as you go,
you should feel free to disable your cellular access to data networking.
The wireless network is often faster and does not cost you anything to use.
If data networking works better when you leave the cellular network available to fall back on, you can choose to disable it only for certain large downloads or disable it completely until the download is complete.
Phone calls will continue to be sent out over the cellular network.
This does not imply that your data is not using an available WiFi connection.
Therefore, unless you are particularly sensitive to the situation or know that data is going out over your cell access, you might not
need to disable the cellular data networking feature.
Which of the following is a characteristic of Bluetooth?
A. Bluetooth connections support wireless device control but not file transfers.
B. Bluetooth is not yet a fully standardized protocol.
C. Bluetooth connections do not reach as far as WiFi connections.
D. You must reboot paired devices to complete connection establishment.
C.
The range of Bluetooth connections is considered short compared to WiFi connections.
Bluetooth is a fully standardized protocol that supports file transfers using FTP.
Rebooting, or even restarting, paired devices is not a requirement for Bluetooth connection.
What is the default TCP port number for SMTP?
A. 25
B. 110
C. 143
D. 995
A.
SMTP sends mail to the server at TCP port 25. POP3 uses port 110. IMAP4 uses 143,
and port 995 is used by POP3 securely over SSL or TLS.
Which mail protocol commonly uses TCP port 587?
A. SMTP with SSL
B. SMTP with TLS
C. IMAP4 with SSL/TLS
D. POP3 with SSL/TLS
B.
SMTP with TLS uses port 587 by default.
With SSL, SMTP uses port 465. IMAP4 with SSL/TLS uses port 993, while POP3 with SSL/TLS uses port 995.
Which of the following is not a type of Android passcode lock that can be set?
A. Spoken passphrase
B. Drawn pattern
C. Numeric PIN
D. Password
A.
All of these options can be used to set a passcode on an Android mobile device except
speaking a passphrase.
If you do not have your iPhone 4S set to erase data after too many failed login attempts but your phone still locks you out after making the maximum allowable attempts, how can you unlock the phone?
A. By having it send you an email with the passcode
B. Only by taking into an Apple Store
C. By plugging it into the last computer that it synced with in iTunes
D. By holding down the sleep/wake and home buttons simultaneously
C.
The fact that the iPhone is attached to the computer with which it last synced indicates
that the owner is likely in possession of it.
Servicing the phone is not required, and performing an Apple reset will still have you locked out as a security precaution.
Which of the following can Apple’s Find My iPhone application not do?
A. Remotely lock the device
B. Remotely wipe the device
C. Locate the device
D. Alert the authorities
D.
Locator applications tend to leave reporting thefts to the user.
Because not all losses are due to theft and because the user would need to determine the authorities to contact, this feature is not seen in such applications.
The location information can certainly be relayed to the authorities.
These applications tend to allow messages to be displayed on the device’s
screen as well.
Directly under which of the following iOS menus can you find the Software Update utility?
A. General
B. iCloud
C. Notifications
D. Security
A.
Software Update is a selection found under Settings > General in the iOS.
There is no Security menu per se, although keeping your iOS updated is considered a proactive security measure.
Which of the following are you most likely to be able to do to a larger mobile device, such
as Apple’s iPad?
A. Replace the internal SSD
B. Add additional RAM
C. Upgrade the processor
D. Print over WiFi or Bluetooth
D.
You should not count on being able to do anything that involves opening the device.
Many tablets and phones offer options for printing wirelessly, sometimes with the purchase of additional software or hardware to assist.
Which of the following features is not supported when you are unable to zoom in on a picture or screen of information by placing two fingers together on the screen and spreading them?
A. Multi-touch
B. TouchFLO
C. SuperPinch
D. Resistive touchscreen
A.
Multi-touch is the feature that allows pinch-to-zoom technology.
Spreading your fingers apart zooms in, while pinching your fingers together zooms out. TouchFLO is the HTC technology that features multiple screens that you can flip between.
SuperPinch does not exist, and as unpopular an idea as it may seem, even resistive touchscreens are technically capable of multi-touch.
