(ISC)2 Certified in Cybersecurity Practice Exam

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Disk striping with parity is associated with which RAID level?

RAID 0
RAID 1
RAID 5
RAID 6

The correct answer is: RAID 5

Disk striping with parity is a feature of RAID 5. In RAID 5, data is striped across multiple disks, which improves performance by allowing simultaneous read and write operations. Additionally, RAID 5 includes parity information, which is used for data protection. This parity is distributed among all the drives in the array, allowing the system to recover lost data in case one of the disks fails. The use of striping enhances read/write speeds, while the inclusion of parity ensures that there is no single point of failure, thus providing fault tolerance and increased reliability in data storage. RAID 0 does not include any form of parity and is purely focused on performance through striping, leading to no redundancy. RAID 1 offers data mirroring but does not utilize striping or parity, meaning it focuses on redundancy by duplicating data rather than enhancing performance through spread-out data access. RAID 6 is similar to RAID 5 but includes dual parity, offering even greater protection against disk failure, yet it too does not strip data into the same structure as RAID 5. Therefore, RAID 5 is the correct answer here due to its combination of disk striping and parity for efficient and reliable data storage.