RAID Levels 0, 1, 5, 10 Quiz | Server Storage

1. RAID 10 (also called 1+0) combines which two RAID technologies?

RAID 0 and RAID 0

RAID 1 and RAID 5

RAID 1 and RAID 0

RAID 5 and RAID 5

2. RAID 0 uses data striping across multiple drives. What is the primary advantage of this configuration?

Improved read/write performance and increased capacity

Complete data redundancy and fault tolerance

Reduced power consumption

Simplified drive replacement procedures

3. What is the critical disadvantage of RAID 0 in enterprise environments?

It requires expensive specialized hardware

Loss of a single drive results in total data loss

It cannot support hot-swappable drives

It limits maximum drive capacity

4. In a RAID 1 array with two 1TB drives, how much usable capacity is available?

2TB total capacity

1TB usable capacity

1.5TB usable capacity

512GB usable capacity

5. Which RAID level combines striping and parity for both performance and fault tolerance?

RAID 0

RAID 1

RAID 5

RAID 10

6. RAID 5 requires a minimum of how many drives to function?

Two drives

Three drives

Four drives

Five drives

7. In a RAID 5 rebuild scenario, a second drive failure before rebuild completion would result in:

Automatic failover to hot spare

Complete data loss for the entire array

Degraded performance but continued operation

Automatic promotion to RAID 10

8. What is a significant limitation of RAID 5 in modern large-capacity drive environments?

Slow write performance due to parity calculations

Extended rebuild time increases failure risk during recovery

Cannot support drives larger than 1TB

Requires specialized firmware on all drives

9. With 8 drives in RAID 10, how much capacity is usable?

25% of total capacity

50% of total capacity

75% of total capacity

100% of total capacity

10. What is the primary advantage of RAID 10 over RAID 5 for enterprise storage?

Lower cost per gigabyte

Faster rebuild times and better fault tolerance

Supports more than one drive failure

Requires fewer total drives

Submit

12. A RAID 5 array with 4 drives of 2TB each has approximately how much usable capacity?

2TB

4TB

6TB

8TB

Submit

15. Which RAID configuration is NOT recommended for mission-critical database servers due to limited fault tolerance and poor rebuild performance?

RAID 0

RAID 5

RAID 10

All of the above

16. RAID 1 can tolerate the simultaneous failure of how many drives in a mirrored pair?

Zero drives

One drive

Two drives

Three drives

17. Which RAID level offers the best performance for random read/write operations in high-demand environments?

RAID 0

RAID 1

RAID 5

RAID 10

Submit

19. Which RAID level provides both redundancy and performance improvement, making it suitable for transactional databases?

RAID 0

RAID 1

RAID 10

RAID 5

Submit

RAID Quiz: 0, 1, 5, 10 — Do You Know the Difference?

1. RAID 10 (also called 1+0) combines which two RAID technologies?

2.

What first name or nickname would you like us to use?

2. RAID 0 uses data striping across multiple drives. What is the primary advantage of this configuration?

3. What is the critical disadvantage of RAID 0 in enterprise environments?

4. In a RAID 1 array with two 1TB drives, how much usable capacity is available?

5. Which RAID level combines striping and parity for both performance and fault tolerance?

6. RAID 5 requires a minimum of how many drives to function?

7. In a RAID 5 rebuild scenario, a second drive failure before rebuild completion would result in:

8. What is a significant limitation of RAID 5 in modern large-capacity drive environments?

9. With 8 drives in RAID 10, how much capacity is usable?

10. What is the primary advantage of RAID 10 over RAID 5 for enterprise storage?

11. RAID 1 achieves fault tolerance through ____.

12. A RAID 5 array with 4 drives of 2TB each has approximately how much usable capacity?

13. In RAID 10, data is first ____ across pairs of drives, then striped across those mirrored pairs.

14. RAID 0 is sometimes called ____.

15. Which RAID configuration is NOT recommended for mission-critical database servers due to limited fault tolerance and poor rebuild performance?

16. RAID 1 can tolerate the simultaneous failure of how many drives in a mirrored pair?

17. Which RAID level offers the best performance for random read/write operations in high-demand environments?

18. In RAID 5, parity data is ____.

19. Which RAID level provides both redundancy and performance improvement, making it suitable for transactional databases?

20. During RAID 5 rebuild operations, the array remains ____ but with reduced performance.