- A
Set up ongoing replication using change data capture (CDC) from the start.
CDC minimizes downtime by replicating changes continuously.
- B
Enable Multi-AZ on the target RDS instance during migration.
Why wrong: Multi-AZ doesn't speed up migration.
- C
Use AWS Direct Connect to establish a dedicated network connection.
Why wrong: Not required; VPN is sufficient.
- D
Use a large DMS replication instance to improve throughput.
Larger instance handles higher load.
- E
Perform a full load migration first, then apply CDC after the cutover window.
Why wrong: CDC should run during full load to reduce downtime.
Question 337 of 1,746
Migrating Oracle to Amazon RDS for Oracle with DMS
This SAP-C02 practice question tests your understanding of accelerate workload migration and modernization. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 planning to migrate its on-premises Oracle database to Amazon RDS for Oracle using AWS DMS. The database is 5 TB in size with continuous changes. Which TWO steps should the company take 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
✓
Set up ongoing replication using change data capture (CDC) from the start.
Option A is correct because setting up ongoing replication using change data capture (CDC) from the start allows continuous synchronization of changes, minimizing the final cutover downtime. Option D is correct because using a large DMS replication instance improves throughput and speeds up the data transfer, reducing the overall migration time. Option B is incorrect because Multi-AZ is a high-availability feature for the target RDS instance, not a factor in migration speed or downtime reduction. Option C is incorrect because while AWS Direct Connect can provide a reliable network connection, it is not a specific step to minimize downtime during migration; the primary focus should be on replication strategy and instance size. Option E is incorrect because performing a full load first and then applying CDC after the cutover window would result in a longer downtime compared to having CDC running from the start.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Set up ongoing replication using change data capture (CDC) from the start.
Why this is correct
CDC minimizes downtime by replicating changes continuously.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
- ✗
Enable Multi-AZ on the target RDS instance during migration.
Why it's wrong here
Multi-AZ doesn't speed up migration.
- ✗
Use AWS Direct Connect to establish a dedicated network connection.
Why it's wrong here
Not required; VPN is sufficient.
- ✓
Use a large DMS replication instance to improve throughput.
Why this is correct
Larger instance handles higher load.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
- ✗
Perform a full load migration first, then apply CDC after the cutover window.
Why it's wrong here
CDC should run during full load to reduce downtime.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SAP-C02 ACL questions on filtering logic and placement.
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Accelerate Workload Migration and Modernization — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Accelerate Workload Migration and Modernization — This question tests Accelerate Workload Migration and Modernization — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Set up ongoing replication using change data capture (CDC) from the start. — Option A is correct because setting up ongoing replication using change data capture (CDC) from the start allows continuous synchronization of changes, minimizing the final cutover downtime. Option D is correct because using a large DMS replication instance improves throughput and speeds up the data transfer, reducing the overall migration time. Option B is incorrect because Multi-AZ is a high-availability feature for the target RDS instance, not a factor in migration speed or downtime reduction. Option C is incorrect because while AWS Direct Connect can provide a reliable network connection, it is not a specific step to minimize downtime during migration; the primary focus should be on replication strategy and instance size. Option E is incorrect because performing a full load first and then applying CDC after the cutover window would result in a longer downtime compared to having CDC running from the start.
What should I do if I get this SAP-C02 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SAP-C02 ACL questions on filtering logic and placement.
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?
Standard ACLs match source addresses.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
3 more ways this is tested on SAP-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is migrating an on-premises Oracle database to Amazon RDS for Oracle. The database is 2 TB in size and the company has a 1 Gbps AWS Direct Connect connection. They need to minimize downtime. Which approach should the solutions architect recommend?
medium- A.Export the database using Oracle Data Pump and import into RDS
- B.Use AWS Snowball Edge to transfer the database files and then restore to RDS
- C.Use AWS Schema Conversion Tool to convert the schema and AWS DMS for data migration without CDC
- ✓ D.Use AWS DMS with full load followed by ongoing replication using change data capture (CDC)
Why D: AWS Database Migration Service (DMS) with change data capture (CDC) allows continuous replication and minimal downtime. Export/import would cause downtime. AWS Schema Conversion Tool (SCT) is for schema conversion, not data migration. Snowball is for offline data transfer and would delay the process.
Variation 2. A company is planning to migrate its on-premises Oracle database to Amazon RDS for Oracle. The database is 2 TB in size and the company has a high-speed network connection to AWS. Which AWS service should the company use to migrate the database with minimal downtime?
easy- A.Amazon S3 Transfer Acceleration
- ✓ B.AWS Database Migration Service (DMS)
- C.AWS Snowball Edge
- D.AWS Schema Conversion Tool (SCT)
Why B: Option B is correct because AWS DMS supports Oracle to RDS for Oracle migration with ongoing replication for minimal downtime. Option A is incorrect because S3 Transfer Acceleration is used for accelerating uploads to S3, not for database migration. Option C is incorrect because Snowball Edge is for offline data transfer and not suitable for databases with minimal downtime. Option D is incorrect because AWS Schema Conversion Tool (SCT) is used for schema conversion, not data migration.
Variation 3. A company is planning to migrate its on-premises Oracle database to Amazon RDS for Oracle. Which actions should the company take to minimize downtime during the migration? (Choose TWO.)
easy- A.Take a full backup of the on-premises database and restore it to RDS during a maintenance window.
- B.Use AWS Direct Connect to establish a dedicated network connection for faster data transfer.
- C.Increase the allocated storage on the target RDS instance to improve write performance.
- ✓ D.Use AWS Schema Conversion Tool (SCT) to convert the schema and optimize for RDS.
- ✓ E.Use AWS Database Migration Service (DMS) with ongoing replication to keep the target in sync.
Why D: Options D and E are correct. AWS Schema Conversion Tool (SCT) converts the schema to be compatible with Amazon RDS for Oracle, reducing compatibility issues. AWS Database Migration Service (DMS) with ongoing replication allows continuous sync from the source to target, minimizing downtime during migration. Option A (full backup and restore) requires downtime during the restore. Option B (Direct Connect) improves transfer speed but does not directly minimize downtime; it's a network enhancement. Option C (increased storage) improves write performance but does not minimize migration downtime.
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Last reviewed: Jun 20, 2026
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