OD41

5 November 2025

CompTIA A+ Core 2: Mobile OS Application & Application Security Issues


 Question:

What access to a device does someone with root access have?

  • Complete access to everything


Question

:

Where can a false virus warning come from?

  • SMS message

  • Weblink

  • Email


Question

:

Which issues could potentially cause your mobile device to randomly reboot?

  • The device is overheating

  • Corrupted or poorly designed software is installed

  • The battery connector has become loose


Question

:

What are signs that a malicious application has been installed on your mobile device?

  • High network bandwidth usage

  • High CPU usage

  • Rapid power drain


Question

:

What are some of the common network traffic types?

  • Everyday traffic

  • Unnecessary traffic

  • Business critical traffic


Question

:

Which issues could potentially cause casting to a monitor to fail?

  • The external display settings are incorrect

  • The monitor is on a different wireless network

  • The wireless connection is poor


Question

:

Which common troubleshooting steps can be taken to fix device connectivity issues?

  • Restart the device

  • Switch from Wi-Fi to mobile


Question

:

Which common troubleshooting steps help deal with battery issues?

  • Upgrading the operating system

  • Disable background app refresh

  • Answer E.
  • Adjusting the screen brightness

Question
:

What can an attacker potentially gain from hacking a mobile android device?

  • Unauthorised location tracking

  • Unauthorised access to data

  • Unauthorised access to the camera


Question

:

How might you resolve a frozen/locked out system?

  • Run a factory reset

  • Check third-party apps

  • Restart the device