A user's computer is displaying a black screen. The technician restarts the computer, but the OS still does not load. The technician discovers the OS was patched the previous evening. Which of the following should the technician attempt NEXT?

• Reboot into safe mode and roll back the updates

• Configure boot options in the BIOS

• Repair the Windows Registry

• Disable Windows services and applications

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?

• sudo

• grep

• chmod

• pwd

A MAC user's operating system became corrupted, and files were deleted after malware was downloaded. The user needs to access the data that was previously stored on the MAC. Which of the following built-in utilities should be used?

• Time Machine

• System Restore

• Snapshot

• Boot Camp

Which of the following devices provides protection against brownouts?

CHOOSE TWO.

• UPS

• Rack grounding

• Line conditioner

• PSU

• Surge Protector

Joe, a user, returns his computer to the technician who performed a virus removal on it the week before. Joe states that several symptoms have returned. The technician quarantined the machine and removed the malware, created a new restore point, verified the system was clean, and scheduled future scans. Which of the following should the technician have covered previously as part of the original repair?

• End user education

• Disabling of system restore

• Pre-installation environment cleaning

• Infected system quarantine

A corporate network was recently infected by a malicious application on a flash drive that downloaded sensitive company files and injected a virus, which spread onto the network. Which of the following best practices could have prevented the attack?

• Implementing strong passwords

• Disabling AutoRun

• Encrypting data

• Changing default credentials

• Removing guest account

 A technician recently installed a new secondary hard drive in a Windows 10 desktop. After the installation, the computer displayed the following error message: No Operating System Found. However, after unplugging the new hard drive, the error message no longer appeared. The technician then reconnected the new drive to continue troubleshooting. Which of the following steps should the technician take NEXT?

• Reboot into safe mode

• Format the drive

• Run the chkdsk command

• Check the boot order

• Perform Windows Recovery

A sales representative regularly modifies confidential files on a laptop and needs them to be available all the time. The sales representative will be on a six-month business trip in two weeks. A technician has been asked to assist the sales representative with saving files. Which of the following is the BEST method to implement to prevent any data loss for the sales representative?

• Give the sales representative a USB security lock

• Create a redundant cloud storage drive

• Encrypt the laptop's image on the server

• Give the sales representative an external hard drive

An end user is browsing the Internet when multiple browser pages open by themselves. The user notices the PC is running slowly, even while not browsing the internet. They are unable to run a scan due to not having antivirus software installed. Which of the following actions should the user take?

• Update antivirus definitions

• Enable pop-up blocker

• Install anti-malware software

• Reboot the PC

Which of the following user types should be used in a Windows environment to grant Internet access without allowing the permanent storage of files on the system?

• Local Administrator

• Power User

• Standard User

• Guest User