Comptia A+ Ch. 25
Why might you run into connectivity problems at large public gatherings? Hyper-cell service An overloaded network A cellular usage limit Location scrambling
An overloaded network
In Android, where would you go to force stop an app? Task manager Battery settings Application manager Home screen
Application manager
A mobile device overheats for seemingly no reason. What is the most likely cause? Low battery Defective battery HD video recording Auto-dimming screen
Defective battery
What hidden menu might exist to help with device calibration? Touch menu Diagnostics menu Device menu Information menu
Diagnostics menu
What is one major indicator of a weak cellular signal? High transfer speeds Apps freezing Dropped connections Constant reboots
Dropped connections
What is the most accurate way to get a device's location? Wi-Fi Cellular network IP address GPS
GPS
What is the process in which an organization tracks when its employees enter or exit a predefined area? Geotagging Geospoofing Geoconnecting Geofencing
Geofencing
What is it called when you hold a system's power button for several seconds until it turns completely off? Force quit Hard reboot Soft reset Force stop
Hard reboot
Why is a hard reset the most disruptive reset option? It removes all of a user's data and settings. It frees up more internal space. It closes applications. It causes battery drain.
It removes all of a user's data and settings.
Modern mobile devices use what type of battery? Ni-Ion Li-Ion Ni-MH Ni-CD
Li-Ion
When should you attempt to repair a battery? When the device is cool to touch After the battery is removed Never When the device is off
Never
Which term refers to a collection of configuration and security settings that an administrator has created? BYOD Profile System group eXtensible markup
Profile
What is a last resort you can do if your device is stolen? Remote update Remote email Remote restore Remote wipe
Remote wipe
What type of authentication is a username and a password? Blind authentication Single-factor authentication Multifactor authentication Double-factor authentication
Single-factor authentication
What term describes restarting a mobile device, whether you do it from within the OS or with hardware buttons on the device? App reset Soft reset Hard reset Reboot
Soft reset
Because mobile device hardware typically cannot be repaired or replaced by a user or field tech, mobile device troubleshooting focuses on what type of issues? Battery Memory Hardware Software
Software
What might be the result of too many failed login attempts? System reboot Application notifications System lockout Device reconfiguration
System lockout
PGP and S/MIME are examples of _______________. system procedures encryption standards email servers SMS notifications
encryption standards
Generally, mobile devices do not include a(n) _______________ because they do not have a lot of services listening on open ports. trusted source application menu settings tab firewall
firewall
Factory reset, or reset to factory default, is also known as a _______________. restore hard backup hard reset soft reset
hard reset
Removing OS restrictions on an Apple device is known as _______________. jailbreaking access injection device spoofing rooting
jailbreaking
Most mobile devices have a few _______________ stickers that change color when exposed to water. water contact IMEI damage liquid contact indicator
liquid contact indicator
Removing OS restrictions on an Android device is known as _________________. rooting jailbreaking unlocking device Spoofing
rooting
Most mobile devices allow the user to set a(n) _______________ by using a password, PIN, pattern, fingerprint, and/or facial recognition to block strangers from accessing the device. device reset data cleanup screen lock permissions policy
screen lock
Having a user logon at a certain time of day, or even within so many seconds or minutes of another event, is known as a(n) _______________ factor. temporal ownership knowledge possession
temporal
A hot, sluggish device might use _______________ to protect the device's CPU from heat damage? thermal throttling heat dispersion automatic backup liquid cooling
thermal throttling
Setting up equipment to spoof a carrier's tower and infrastructure is known as _______________. network ghosting tower spoofing cell tower control network analysis
tower spoofing
What might a dim display mean? The memory is low. An update is available. There are too many apps open. There is a problem with the display panel.
There is a problem with the display panel.
When a mobile app is shut down, what might the user lose? System settings Unsaved data Saved data Persistent data
Unsaved data
Besides the display, what is a very large battery drain for a mobile device? Location settings Maps Wireless communication Weather apps
Wireless communication
