Comparing Disk & Power Redundancies

Are you planning to take the Security+ exam. Do you have a basic understanding of redundancies. See if you can answer this sample practice test question.

Q. You are a technician at a small organization. You need to add fault-tolerance capabilities within the business to increase the availability of data. However, you need to keep costs as low as possible. Which of the following is the BEST choice to meet these needs?

A. Failover cluster

B. RAID-6

C. Backups

D. UPS

Check the answer and explanation here.