Which of the following would be the FASTEST method to perform a clean install of the latest Windows OS?

A junior Linux system administrator needs to update system software. Which of the following shell commands would allow the administrator to gain the necessary permissions to update the software?

A customer recently upgraded from Windows 7 to Windows 10. The customer lost access to certain network shares, and the system keeps preventing the user's access. Which of the following is the MOST likely cause of the issue?

A technician is trying to repair a computer that was infected with an encrypting virus. After disconnecting the system from the network, the technician images the computer. Upon startup, the system consistently presents a blue screen at the Windows logo. Which of the following should the technician perform NEXT to resolve the issue?

A user contacts a technician to report issues with unwanted pop-ups appearing on a computer.
Additionally, when the user types a search term into the browser, the user is taken to an unexpected search engine. The technician checks the IP configuration of the computer and determines the DNS is set to 8.8.8.8.
Which of the following should the technician perform to determine the cause of the unwanted behavior?