Sandra Johnson is her company's chief security officer.She is interested in obtaining fault tolerance at the direct-access storage device level.Which of the following methods would be of most interest to her?

Question

Quizplus · Accepted Answer

Disk mirroring is a method used to achieve fault tolerance at the direct-access storage device level. It involves maintaining a copy, or mirror, of the data on another disk. This way, if one disk fails, the system can continue to function using the data from the remaining disk. Rollback processing is a method used for transaction processing, consensus-based protocols are used for distributed systems, and database shadowing involves maintaining a copy of the database on another system. While these methods may also provide some level of fault tolerance, they are not directly related to the direct-access storage device level.

Sandra Johnson Is Her Company's Chief Security Officer