Which of the following is a community supported, open source OS used for both services and workstations?

A technician is developing a backup and disaster recovery plan for a customer. The customer requires quick file recovery when necessary, but wants to ensure recovery is possible in case of a complete disaster, with data loss of no more than three days. Which of the following backup procedures should the technician suggest to BEST meet the customer's needs?

A user receives the following error message while browsing the Internet on a PC: The connection is not private. Upon inspection, a technician discovers the issue only occurs on the user's banking website, and the issue can be duplicated on another PC. The function to view the certificate shows it is valid and has yesterday's date as the expiration. Which of the following should the technician do NEXT?

A technician is cleaning up a warehouse and several old CRT monitors and UPS units. The technician removes the batteries from the UPSs and wants to comply with proper disposal techniques.
Which of the following should the technician do NEXT to proceed with disposal of the batteries?

While troubleshooting a software error on a user's computer, a technician finds inappropriate content.
Which of the following should the technician perform FIRST?