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Exam 220-1101 topic 1 question 84 discussion

Actual exam question from CompTIA's 220-1101
Question #: 84
Topic #: 1
[All 220-1101 Questions]

A technician is configuring a new CAD workstation that has four large hard drives. The workstation will be used to edit large, critical files, so the storage configuration should be both fast and redundant. Which of the following RAID levels BEST meets these requirements?

  • A. 0
  • B. 1
  • C. 5
  • D. 10
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Suggested Answer: D 🗳️
by imtiazL at Oct. 13, 2022, 6:05 p.m.

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ronniehaang
Highly Voted 1 year, 8 months ago
Selected Answer: D
The RAID level that BEST meets the requirements for a fast and redundant storage configuration for the CAD workstation is RAID 10 (also known as RAID 1+0). RAID 10 is a combination of two RAID 1 arrays. In RAID 10, data is mirrored between two disks and then striped across multiple disks for faster performance. This provides the benefit of both speed and redundancy. If one disk fails, the data can still be retrieved from the other disk in the mirror. This makes RAID 10 a good choice for critical data storage and large files such as those used in a CAD workstation.
upvoted 8 times
[Removed]
4 months, 4 weeks ago
I think you meant combination of RAID 1 and RAID 0
upvoted 1 times
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JonHin
Most Recent 2 months, 1 week ago
Selected Answer: D
Just D RAID 10 combines the benefits of RAID 0 and RAID 1. It uses a striped configuration across multiple disks (similar to RAID 0) to provide high-speed read and write access. Additionally, it also mirrors the striped array onto a second set of drives (similar to RAID 1), providing redundancy in case of a drive failure.
upvoted 1 times
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alforg03
11 months, 2 weeks ago
Selected Answer: D
D is Correct
upvoted 1 times
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Yasin571
1 year, 2 months ago
Fastest + best redunduncy is 10
upvoted 1 times
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WEREFOX
1 year, 4 months ago
Selected Answer: C
Raid 5 CAN have 4 disks.
upvoted 1 times
Mango7
1 year, 1 month ago
nope, only 3
upvoted 1 times
ttechy
11 months, 3 weeks ago
in the book it does say the minimum to do a Raid 5 is 3 drives, so he is partially right, but I choose Raid 10 as it's minimum is 10 drives and it does mirroring and striping
upvoted 1 times
ttechy
11 months, 3 weeks ago
correction 4*
upvoted 1 times
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[Removed]
1 year, 8 months ago
Selected Answer: D
D has to be the answer, 10 can take 4 hard drives minimum, Raid 5 can only do an odd number of drives hence why the minimum is 3.
upvoted 2 times
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Amrsh
1 year, 8 months ago
Selected Answer: C
The RAID level that BEST meets the requirements of fast and redundant storage for the new CAD workstation is RAID 5. RAID 0 provides fast performance through striping data across multiple drives, but does not provide any redundancy in case of drive failure. RAID 1 provides redundancy through mirroring data across two drives, but does not offer significant performance improvement compared to a single drive. RAID 10 (also known as RAID 1+0) provides both fast performance through striping and redundancy through mirroring, but requires at least four drives and provides less usable storage compared to RAID 5. RAID 5 provides fast performance through striping data and parity information across multiple drives, and provides data redundancy in case of a single drive failure. This makes it a good choice for systems like the CAD workstation where data protection is important.
upvoted 1 times
Amrsh
1 year, 8 months ago
With a RAID 5 configuration, you can connect three to 16 drives, but four is the most common number of hard drives used in this array. Even though the minimum drives for RAID 5 is three, most users opt for four drives because of speed, fault tolerance and storage capacity.
upvoted 2 times
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StrawberryTechie
1 year, 8 months ago
I am not convinced D is the answer. RAID 5 is faster than 10 and has redundancy.
upvoted 1 times
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NICE2022
1 year, 11 months ago
RAID 10 is correct
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Ebele
2 years ago
RAID 10 is Correct
upvoted 1 times
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NotAHackerJustYet
2 years ago
RAID 0 provides no redundancy RAID 1 is close but not as redundant as RAID 10 RAID 5 has inferior redundancy to RAID 10 RAID 10 is the best of RAID 1 and RAID 0 (nested RAID).
upvoted 1 times
fiela1
1 year, 11 months ago
not to mention there are 4 large hard drives, and RAID 1 only requires two and RAID 5 has an odd number of drives
upvoted 1 times
StrawberryTechie
1 year, 8 months ago
RAID 5 just needs a minimum of 3 disks. It is not limited to 3.
upvoted 2 times
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imtiazL
2 years ago
answer is correct https://techgenix.com/raid-10-vs-raid-5/
upvoted 2 times
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