Understanding RAID Arrays

The video tutorial explains the use of RAID arrays for data redundancy and uptime. It covers different RAID levels, including RAID 0, 1, 5, and 10, highlighting their structures, benefits, and limitations. RAID 0 offers performance benefits but no redundancy, RAID 1 provides data mirroring, RAID 5 uses striping with parity for efficient space use, and RAID 10 combines striping and mirroring for enhanced redundancy and performance.

What is the primary purpose of using RAID in data storage?

• To eliminate the need for backups

• To reduce the cost of storage

• To ensure data availability and uptime

• To increase the speed of data processing

Which RAID level is known for having no redundancy?

• RAID 5

• RAID 1

• RAID 0

• RAID 10

What is a major disadvantage of RAID 0?

• It requires more storage space

• It has no data redundancy

• It is more expensive to implement

• It is slower than other RAID types

How does RAID 1 ensure data availability?

• By using parity information

• By mirroring data on two drives

• By striping data across multiple drives

• By using a single large drive

What is a key benefit of RAID 1?

• Lower cost of implementation

• Increased storage capacity

• Faster data processing

• Data redundancy through mirroring

What distinguishes RAID 5 from RAID 0?

• RAID 5 uses mirroring

• RAID 5 includes parity for data recovery

• RAID 5 is slower than RAID 0

• RAID 5 requires fewer drives

How does RAID 5 efficiently use drive space?

• By storing all data on a single drive

• By using one drive for parity and others for data

• By mirroring all data

• By using fewer drives

What is RAID 10 also known as?

• Independent disks

• Stripe of mirrors

• Striping with parity

• Mirroring with parity

What combination does RAID 10 use to enhance data protection?

• RAID 0 and RAID 5

• RAID 1 and RAID 5

• RAID 0 and RAID 1

• RAID 5 and RAID 6

In RAID 10, how many drives can be lost without losing data?

• One drive

• Four drives

• Two drives

• Three drives