RAID QUIZ

RAID 0

• Striping only

• striping with parity

• mirroring only

• striping and mirroring

RAID 1

• Striping only

• striping with parity

• mirroring only

• striping and mirroring

RAID 5

• Striping only

• striping with parity

• mirroring only

• striping and mirroring

RAID 1+0

• Striping only

• striping with parity

• mirroring only

• striping and mirroring

1. When implementing ______________________, a stripe set breaks data into units and stores the units across a series of disks by reading and writing to all disks simultaneously. This provides an increase in performance but it does not provide fault tolerance. A failure of one disk in the set means all data is lost.

• RAID 0

• RAID 5

• RAID 1

• RAID 10

1. When implementing__________________________, a mirrored volume stores data to two duplicate disks simultaneously. If one disk fails, data is present on the other disk, and the system switches immediately from the failed disk to the functioning disk. Mirroring provides fault tolerance for a single disk failure, but does not increase performance.

• RAID 1

• RAID 0

• RAID 5

• RAID 10

1. A ___________________________ volume combines disk striping across multiple disks with parity for data redundancy. Parity information is stored on each disk. If a single disk fails, its data can be recovered using the parity information stored on the remaining disks. This provides fault tolerance for a single disk failure and provides an increase in performance.

• RAID 5

• RAID 0

• RAID 10

• RAID 1

1. A_____________________________ volume stripes data across mirrored pairs and across multiple disks for data redundancy. If a single disk fails, its data can be recovered using the mirrored information stored on the remaining disks. If two disks in the same mirrored pair fail, all data will be lost because there is no redundancy in the striped sets.

• RAID 10

• RAID 1

• RAID 5

• RAID 0

Which of the following uses striping without fault tolerance?

• RAID 1
• RAID 0
• RAID 5
• Expanded volume set

What is the minimum number of hard disks that can be used to configure RAID 10?

• 2
• 4
• 5
• 3