Oracle Exam 1Z0-820 Topic 5 Question 82 Discussion

Actual exam question for Oracle's 1Z0-820 exam

Question #: 82
Topic #: 5

Review the zpool information on your server:

You enabled the deduplication properly on the pooH/data file system, yet the information on the pool shows a DEDUP RATIO of 1 00x. Which two options describe why the data duplication ratio on pooM still shows I.OOx and not a higher value? (Choose two.)

AMost of the data in the pooM/data file system is not duplicate data.

BYou have the copies property set to a value of greater than 1 on your ZFS file system.

CYou have set the dedup property on the ZFS file system, but have not set the dedupratio property on the zpool.

DYou have set the deduplication property on the ZFS file system, but have not set the dedupratio property on the zpool

EYou have set the dedup property on the ZFS file system, but have not added any data to the file system since the dedup property was set-

Show Suggested Answer

Suggested Answer: A, C

by Theola at Nov 21, 2023, 04:00 AM

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Thurman

2 months ago

Wait, is the answer 'None of the above'? Maybe the deduplication just hasn't kicked in yet, and it's all a big conspiracy by the ZFS overlords!

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Marget

6 days ago

Maybe the deduplication just hasn't kicked in yet, and it's all a big conspiracy by the ZFS overlords!

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Desmond

16 days ago

E) You have set the dedup property on the ZFS file system, but have not added any data to the file system since the dedup property was set-

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Minna

27 days ago

A) Most of the data in the pooM/data file system is not duplicate data.

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Keneth

2 months ago

I'm leaning towards A. If the data is mostly unique, then the dedup ratio would be 1.00x, even with deduplication enabled.

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Gerri

23 days ago

Earleen: Maybe it's because the dedupratio property on the zpool hasn't been set. That could be the second reason.

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Earleen

28 days ago

User 2: Yeah, that makes sense. So, what's the other reason why the ratio is still 1.00x?

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Ricarda

1 months ago

User 1: I think A is correct. If most of the data is unique, the dedup ratio would be 1.00x.

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Barrett

2 months ago

Haha, I bet the answer is B. That would be too easy, right? Who sets the copies property higher than 1 these days?

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Tawna

2 months ago

I'm not sure, but I think it could also be E. If you haven't added any data since setting the dedup property, there won't be any duplicates to detect.

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