TestOut LabSim A+ Certification Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the TestOut LabSim A+ Certification Exam with flashcards and multiple choice questions, complete with hints and explanations. Maximize your exam readiness today!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the minimum number of hard disks required to configure RAID 5?

The correct answer is: 3

RAID 5 requires a minimum of three hard disks to function effectively. This configuration utilizes a form of data striping along with parity, which allows for both increased performance and data redundancy. In RAID 5, data and parity information are distributed across all disks in the array. The parity data is used to rebuild information in the event of a disk failure, ensuring that data integrity is maintained even if one disk goes down. Having at least three disks allows RAID 5 to store parity information without sacrificing usable storage capacity. With only two disks, RAID 5 cannot implement its parity scheme, as there wouldn't be an adequate number of disks to support both data distribution and redundancy. Therefore, three is the minimum number required to achieve a functioning RAID 5 setup.