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Exam 98-365 topic 1 question 270 discussion

Actual exam question from Microsoft's 98-365
Question #: 270
Topic #: 1
[All 98-365 Questions]

Which of the following RAID levels will you use to implement a RAID system for providing fault tolerance to a database?

  • A. RAID 1
  • B. RAID 10
  • C. RAID 5
  • D. RAID 0
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Suggested Answer: B 🗳️
RAID 1 (answer A), RAID 10 (answer B) and RAID 5 (Answer C) all provide the required redundancy so all could be valid answers. RAID 10 offers the best performance though and is commonly used for databases.
by LTTAM at March 10, 2020, 10:20 p.m.

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LTTAM
Highly Voted 5 years, 3 months ago
Correct answer is A, B and C. The answer lists only A but it’s explanation confirms A, B and C as the answers. Why is this test riddled with typos, wrong answers and inaccurate information???
upvoted 10 times
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Vendo
Most Recent 4 years, 4 months ago
Raid 10 - 4 or more drives, Can Sustain failure of one or more drives, while Raid 1 with 2 drives can sustain failure of only one. So Raid 10 is the best answer. The question is not asking about performance. Although yes Raid 10 improves only read performance.
upvoted 2 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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