SK0-005 · Question #46
An administrator is given two hard drives and asked to build a redundant storage solution. Which of the following RAID levels should the administrator use?
The correct answer is B. RAID 1. To build a redundant storage solution using exactly two hard drives, the administrator should use RAID 1, which mirrors data across both disks.
Question
An administrator is given two hard drives and asked to build a redundant storage solution. Which of the following RAID levels should the administrator use?
Options
- ARAID 0
- BRAID 1
- CRAID 4
- DRAID 5
How the community answered
(33 responses)- A9% (3)
- B85% (28)
- C3% (1)
- D3% (1)
Why each option
To build a redundant storage solution using exactly two hard drives, the administrator should use RAID 1, which mirrors data across both disks.
RAID 0 (striping) combines drives for performance but offers no redundancy, meaning the failure of one drive results in total data loss.
RAID 1 (mirroring) provides redundancy by creating an identical copy of data on two separate drives. This ensures that if one drive fails, the data remains accessible on the other, and it is the only listed RAID level that can achieve redundancy with just two disks.
RAID 4 (striping with dedicated parity) requires a minimum of three drives to implement.
RAID 5 (striping with distributed parity) also requires a minimum of three drives to implement.
Concept tested: RAID levels for data redundancy
Source: https://learn.microsoft.com/en-us/windows-server/storage/storage-spaces/understand-raid-levels
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