Oracle 1Z0-1093-25 Exam - Topic 4 Question 17 Discussion

Actual exam question for Oracle's 1Z0-1093-25 exam

Question #: 17
Topic #: 4

What is the PRIMARY benefit of using Recovery Manager (RMAN) with block change tracking enabled in a BaseDB environment for incremental backups?

AIt eliminates the need for full backups.

BIt significantly reduces the time required for incremental backups by only backing up changed blocks.

CIt automatically encrypts all backups with a user-defined key.

DIt allows for point-in-time recovery to any SCN (System Change Number) without restoring a full backup.

EIt automatically validates the integrity of full backups during the backup process.

Show Suggested Answer

Suggested Answer: B

Block Change Tracking (BCT):

Enabling BCT with RMAN significantly speeds up incremental backups by recording changes made to data blocks since the last backup. Instead of scanning the entire database to detect changes, RMAN consults the block change tracking file to identify modified blocks, reducing backup time and I/O.

BCT is especially beneficial in large databases where full backups would be time-consuming and resource-intensive. Incremental backups become more efficient, making daily or more frequent backups feasible.

Why the other options are incorrect:

A: Full backups are still required periodically.

C: Encryption is separate from BCT functionality.

D: Point-in-time recovery is facilitated by backup logs, not BCT directly.

E: Integrity checks are performed during validation, not as part of BCT.

Oracle RMAN Backup Documentation

by Delmy at Mar 07, 2026, 11:18 AM

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Antonio

5 hours ago

I practiced a similar question, and I feel like B was the answer there too. It makes sense that only changed blocks would be backed up.

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Leota

5 days ago

I'm not entirely sure, but I remember something about point-in-time recovery being a big deal. Could it be D?

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Nina

10 days ago

I think the main benefit of RMAN with block change tracking is about efficiency, so maybe it's B? It seems like it would save a lot of time during backups.

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