- A
Use Oracle Recovery Manager (RMAN) to back up and restore.
Why wrong: RMAN is not supported for RDS.
- B
Use Oracle GoldenGate to replicate data continuously.
GoldenGate provides real-time replication with minimal downtime.
- C
Use AWS Database Migration Service (DMS) with ongoing replication.
DMS with replication minimizes downtime.
- D
Take a full database backup and restore to RDS.
Why wrong: Backup and restore causes downtime.
- E
Use Oracle Data Pump to export and import the database.
Why wrong: This method requires downtime.
Question 103 of 1,730
Use GoldenGate or DMS for Minimal Downtime Migration
This DBS-C01 practice question tests your understanding of management and operations. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is migrating an on-premises Oracle database to Amazon RDS for Oracle. Which TWO methods can the database specialist use to minimize downtime during the migration?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Oracle GoldenGate to replicate data continuously.
Oracle GoldenGate enables continuous, real-time data replication from the source Oracle database to Amazon RDS for Oracle, allowing the source to remain fully operational during the migration. When the cutover is performed, only a brief pause is needed to apply any final transactions, minimizing downtime to seconds or minutes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use Oracle Recovery Manager (RMAN) to back up and restore.
Why it's wrong here
RMAN is not supported for RDS.
- ✓
Use Oracle GoldenGate to replicate data continuously.
Why this is correct
GoldenGate provides real-time replication with minimal downtime.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Use AWS Database Migration Service (DMS) with ongoing replication.
Why this is correct
DMS with replication minimizes downtime.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Take a full database backup and restore to RDS.
Why it's wrong here
Backup and restore causes downtime.
- ✗
Use Oracle Data Pump to export and import the database.
Why it's wrong here
This method requires downtime.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume any backup-and-restore or export/import method (like RMAN or Data Pump) can be performed with minimal downtime, but these methods inherently require the source database to be offline or in a consistent state for a significant period, unlike continuous replication technologies such as GoldenGate or DMS with CDC.
Detailed technical explanation
How to think about this question
Oracle GoldenGate uses log-based change data capture (CDC) to read redo logs from the source database and apply transactions to the target in near real-time, supporting heterogeneous migrations and minimal latency. AWS DMS with ongoing replication similarly uses change data capture (CDC) on the source database's transaction logs to continuously replicate changes after an initial full load, enabling a nearly zero-downtime cutover. Both methods rely on the source database remaining online and transactional, with only a brief outage during the final switchover.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Management and Operations — study guide chapter
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
Management and Operations — This question tests Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Oracle GoldenGate to replicate data continuously. — Oracle GoldenGate enables continuous, real-time data replication from the source Oracle database to Amazon RDS for Oracle, allowing the source to remain fully operational during the migration. When the cutover is performed, only a brief pause is needed to apply any final transactions, minimizing downtime to seconds or minutes.
What should I do if I get this DBS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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