COMPTIA A+ Practice Exam

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Ace your COMPTIA A+ certification with our practice exam. Engage with a variety of questions including multiple choice and performance-based, complete with hints and detailed explanations. Prepare effectively and boost your confidence for the big day!

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.

RAID 10 or 1+0 is best described as?

Mirroring without parity
Spanning across drives
Stripe of mirrors
Block-level striping with parity

The correct answer is: Stripe of mirrors

RAID 10, also known as RAID 1+0, is best described as a "stripe of mirrors." This configuration combines the benefits of both mirroring and striping to provide enhanced redundancy and performance. In RAID 10, data is first mirrored between pairs of drives, ensuring redundancy. This means that if one drive fails within a mirrored pair, the system can continue to operate using the other drive. After this mirroring, the data is striped across these pairs, which improves access speeds as data is read from or written to multiple drives simultaneously. This arrangement provides the fault tolerance of mirroring alongside the performance benefits of striping. Other options describe different RAID configurations: mirroring without parity refers to a standard RAID 1 setup, spanning across drives does not imply either mirroring or striping but instead indicates a method of combining capacity of multiple drives, and block-level striping with parity is characteristic of RAID 5 or RAID 6, which uses parity information to provide fault tolerance but does not involve the mirroring that RAID 10 relies upon.