CompTIA A+ Core 2 Question J-85

A user has downloaded and installed a browser add-on that causes the browser to hang. The PC has very slow system response when rebooted. Which of the following should a technician do to troubleshoot this problem?

A. Run System Restore, update antivirus program, and run an antivirus scan.
B. Remove all Internet temporary files, run an antivirus scan, and reboot using Last Known Good Configuration.
C. Remove all temporary files, turn off System Restore, update and run an antivirus scan.
D. Run an antivirus scan, Run Disk Cleanup, and reboot into Safe Mode.

Correct Answer: C

Explanation:
This might be the sign of a virus infecting the system. First, remove all temporary Internet files on your computer. Viruses are downloaded through software or a webpage. And normally it resides in Temporary Internet Files folder. Now turn off system restore because you don’t want to load a previous state on the computer with the virus still lingering the digital wild. Run an antivirus program to clean infected files.

CompTIA A+ Core 2 Question D-91

Which of the following areas of a file system should a standard user have restricted permissions to in order to promote a security best practice? (Select TWO).

A. Temporary Internet Files
B. My Document Files
C. Windows System Files
D. Network Files
E. Program Files

Correct Answer: CE

Explanation:
Windows program files are important for Windows operating system. If these files are deleted, Windows will corrupt. Similarly program files are related to applications and programs installed on a computer. These are highly sensitive files because they are related to the functioning of the operating system and the applications installed on it.