DEA-1TT5 RAID and Data Protection

Question 1

What does RAID stand for?

Accepted Answer

Redundant Array of Independent Disks

Answer

Rapid Access to Integrated Data

Answer

Resilient Array of Internal Drives

Answer

Redundant Allocation of I/O Data

Question 2

Which RAID level provides striping without redundancy, offering maximum performance but no fault tolerance?

Accepted Answer

RAID 0

Answer

RAID 1

Answer

RAID 5

Answer

RAID 6

Question 3

How many disk failures can RAID 6 tolerate?

Accepted Answer

2

Answer

0

Answer

1

Answer

3

Question 4

What is a 'hot spare' in a RAID configuration?

Accepted Answer

An idle standby disk that automatically replaces a failed disk in an array

Answer

An extra powered-off disk stored on a shelf

Answer

A high-performance SSD used as a cache tier

Answer

A spare power supply for the storage controller

Question 5

In RAID 5, how is parity information stored?

Accepted Answer

Distributed across all disks in the array

Answer

On a dedicated parity disk separate from the data disks

Answer

Only on the first and last disks

Answer

In the storage controller's NVRAM

Question 6

What is the primary advantage of RAID 10 over RAID 5?

Accepted Answer

RAID 10 provides better write performance and faster rebuild times due to mirroring

Answer

RAID 10 has lower storage overhead

Answer

RAID 10 can tolerate more simultaneous disk failures

Answer

RAID 10 requires fewer disks to implement