Oracle Exam 1Z0-083 Topic 6 Question 113 Discussion

Actual exam question for Oracle's 1Z0-083 exam

Question #: 113
Topic #: 6

[All 1Z0-083 Questions]

Choose two. Which two are true about backup set compression using RMAN default compression?

ACompressed backups cannot have a section size defined.

BCompressed backups can be written only to media.

CBinary compression adds CPU overhead to backup operations.

DUnused blocks below the high water mark are backed up.

ECompression can be done only for locally managed tablespaces.

Show Suggested Answer

Suggested Answer: A, C, F

by Pok at Mar 04, 2025, 05:50 PM

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Marilynn

7 days ago

Compressed backups can't have a section size defined? What is this, the dark ages of database backups? I'll go with C and D as well, just to keep up with the times.

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Billye

8 days ago

Haha, 'backup set compression' - sounds like the newest CrossFit workout! But in all seriousness, I think Cherrie and Alex nailed it. C and D are the way to go.

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Alex

11 days ago

I agree with Cherrie on C and D. B is definitely wrong - compressed backups can be written to disk as well as media. And A and E just don't make sense to me.

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Cherrie

15 days ago

C and D seem like the correct answers here. The CPU overhead for compression is well known, and unused blocks are definitely included in the backup, even if they're below the high water mark.

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