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A Linux PC user notices that the PC freezes on startup and exhibits kernel panic where there is a stop screen. What is a possible cause for the issue?
Correct answer(s):
- A driver has become corrupted.
A mobile device user notices that the system update includes an update of the Primary Rate ISDN (PRI). What is the function of the PRI?
Correct answer(s):
- It is the configuration of the data rates between the device and the cell tower.
Which cloud-based storage service does Microsoft provide for backups?
Correct answer(s):
- OneDrive
Which statement describes the Touch ID in iOS devices?
Correct answer(s):
- It is the hash value of the user fingerprint.
What is the purpose of using the auto-brightness feature on a mobile device with an LCD screen?
Correct answer(s):
- to conserve battery power
Which statement describes the iOS app icons on a mobile device screen?
Correct answer(s):
- Each icon represents the actual app.
Which navigation icon on the system bar of an Android device is used to return to the previous screen?
Correct answer(s):
- Back
Android apps run primarily based on privileges enabled by the user. Sometimes an Android app requires extra privileges to access system components. How do Android apps run to accomplish both situations?
Correct answer(s):
- Android apps run in a sandbox.
Which model does Apple use to provide iOS apps to customers?
Correct answer(s):
- walled garden
What tool or command is used in the Mac OS X to navigate the file system?
Correct answer(s):
- Finder
What is Wi-Fi calling?
Correct answer(s):
An administrator is re-imaging a large number of Mac OS X machines. What built-in tool or command can be used to remotely boot the computers?
Correct answer(s):
- Netboot
What is a purpose of the boot manager program?
Correct answer(s):
- It allows the user to select the OS to use to boot the device.
What is the purpose of signature files used to secure mobile devices and operating systems?
Correct answer(s):
- They contain sample code from known viruses and malware that is used by security software to identify malicious software.
What is the name of the Windows Phone 8.1 digital, or virtual, assistant?
Correct answer(s):
- Cortana
What is the result of doing a factory reset on a mobile device?
Correct answer(s):
- All user data and settings will be deleted.
What represents apps in the Windows Phone interface?
Correct answer(s):
- tiles
What is a good source for safely downloading Android apps?
Correct answer(s):
A file called new_resume has the following file permissions: rw-r-x–x. What two facts can be determined from these permissions? (Choose two.)
Correct answer(s):
- Members of the group have read and execute access to the file.
- The user is able to read and modify the file.
A Linux administrator wants to backup current files in a data directory and store them in a new directory on another disk. Which two commands would be needed? (Choose two.)
Correct answer(s):
- cp
- mkdir