220-1101 · Question #37
A technician is commissioning a workstation that is required to have mirrored storage, utilizing two 4TB drives that support one failure. Which of the following BEST meets these requirements?
The correct answer is B. RAID 1. RAID 1 is disk mirroring: data is written identically to two drives simultaneously. With two 4TB drives, the usable capacity is 4TB (one drive mirrors the other), and the array continues operating if one drive fails - exactly matching the requirements. RAID 0 (A) stripes data acr
Question
A technician is commissioning a workstation that is required to have mirrored storage, utilizing two 4TB drives that support one failure. Which of the following BEST meets these requirements?
Options
- ARAID 0
- BRAID 1
- CRAID 5
- DRAID 10
How the community answered
(57 responses)- A12% (7)
- B79% (45)
- C4% (2)
- D5% (3)
Explanation
RAID 1 is disk mirroring: data is written identically to two drives simultaneously. With two 4TB drives, the usable capacity is 4TB (one drive mirrors the other), and the array continues operating if one drive fails - exactly matching the requirements. RAID 0 (A) stripes data across both drives for performance but has zero fault tolerance - losing either drive means losing all data. RAID 5 (C) requires a minimum of three drives. RAID 10 (D) requires a minimum of four drives and combines striping with mirroring.
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