SK0-003 · Question #729
A system administrator needs to provision storage for a 200GB database. The database must have extremely low seek time. Which of the following is the BEST solution?
The correct answer is D. A single SSD. To provision storage for a 200GB database requiring extremely low seek time, a single Solid State Drive (SSD) is the best solution.
Question
A system administrator needs to provision storage for a 200GB database. The database must have extremely low seek time. Which of the following is the BEST solution?
Options
- AA JBOD
- BA RAID 50 array
- CA NAS
- DA single SSD
How the community answered
(44 responses)- A16% (7)
- B5% (2)
- C7% (3)
- D73% (32)
Why each option
To provision storage for a 200GB database requiring extremely low seek time, a single Solid State Drive (SSD) is the best solution.
A JBOD configuration simply aggregates storage without improving seek time; it typically uses HDDs which have mechanical seek delays.
A RAID 50 array, while offering performance and redundancy, typically uses hard disk drives (HDDs) which have mechanical seek times significantly higher than SSDs.
A NAS introduces network latency and the underlying storage might still be HDD-based, making it unsuitable for "extremely low seek time" requirements.
A single SSD provides extremely low seek times because it has no moving parts, relying on flash memory for data access, which is significantly faster than magnetic disks. For a 200GB database where seek time is critical, an SSD offers superior performance compared to HDD-based solutions.
Concept tested: Storage media types and performance characteristics
Source: https://learn.microsoft.com/en-us/windows-server/storage/disk-management/understanding-disk-sectors
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