The answer is AWS Database Migration Service (DMS) with ongoing replication. This service is correct because it provides continuous, asynchronous replication of the Oracle database to a second AWS Region, meeting the low RPO requirement by capturing ongoing changes from the source Oracle database and applying them to a target Oracle database in the DR Region without significant latency. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your understanding of disaster recovery patterns for SAP on Oracle, specifically the limitation that RDS Read Replicas are region-bound and that S3 Cross-Region Replication or EC2 AMI copies cannot provide continuous database-level replication. A common trap is confusing database replication with storage or object-level replication, so remember: for ongoing Oracle database changes across regions, think DMS, not S3 or AMI. Memory tip: “DMS for DR, S3 for objects, RDS replicas stay local.”
PAS-C01 Design of SAP Workloads on AWS Practice Question
This PAS-C01 practice question tests your understanding of design of sap workloads on aws. 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 runs SAP ERP on AWS using an Oracle database. To meet disaster recovery requirements, they need to replicate the database to a second AWS Region with low RPO. Which AWS service should be used for continuous, asynchronous replication of the Oracle database?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS Database Migration Service (DMS) with ongoing replication from the source Oracle database to a target Oracle database in the DR Region.
Option A is correct because AWS DMS with ongoing replication can continuously replicate Oracle data to another Region with low latency. Option B is wrong because S3 Cross-Region Replication is for objects, not databases. Option C is wrong because RDS for Oracle Read Replicas only work within the same Region. Option D is wrong because EC2 AMI copy is not continuous.
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.
✗
Copy the EC2 instance with the Oracle database as an AMI to the DR Region.
Why it's wrong here
AMI copy is not continuous replication.
✓
AWS Database Migration Service (DMS) with ongoing replication from the source Oracle database to a target Oracle database in the DR Region.
Why this is correct
DMS supports continuous replication with low RPO.
Related concept
Standard ACLs match source addresses.
✗
Amazon S3 Cross-Region Replication (CRR) to replicate database backups.
Why it's wrong here
CRR replicates objects, not live database changes.
✗
Amazon RDS for Oracle Read Replicas in the DR Region.
Why it's wrong here
Read Replicas are not cross-Region for Oracle.
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
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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 PAS-C01 ACL questions on filtering logic and placement.
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: AWS Database Migration Service (DMS) with ongoing replication from the source Oracle database to a target Oracle database in the DR Region. — Option A is correct because AWS DMS with ongoing replication can continuously replicate Oracle data to another Region with low latency. Option B is wrong because S3 Cross-Region Replication is for objects, not databases. Option C is wrong because RDS for Oracle Read Replicas only work within the same Region. Option D is wrong because EC2 AMI copy is not continuous.
What should I do if I get this PAS-C01 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 PAS-C01 ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Question Discussion
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