- A
Use AWS Snowball to transfer the initial Oracle data dump to AWS.
Why wrong: Snowball is for offline data transfer, not for near-zero downtime.
- B
Use SAP HANA System Replication (HSR) for the final synchronization.
HSR can be used to keep the HANA target in sync during the cutover.
- C
Use EC2 Hibernate to pause the source instance during cutover.
Hibernate can pause the instance to speed up the final cutover, but is not a replication method.
- D
Use AWS Database Migration Service (DMS) for ongoing replication from Oracle to HANA.
DMS supports minimal downtime migration by replicating changes continuously.
- E
Use Amazon EBS Snapshots for point-in-time recovery and replication.
Why wrong: Snapshots are for backup, not for continuous replication.
Question 476 of 1,733
Near-Zero Downtime Migration to S/4HANA on AWS
This PAS-C01 practice question tests your understanding of technology. 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 migrating its SAP ECC system to SAP S/4HANA on AWS. The current database is running on Oracle. They want to minimize downtime during the migration. Which THREE services or features should they consider to achieve a near-zero downtime migration? (Select THREE.)
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 SAP HANA System Replication (HSR) for the final synchronization.
To achieve near-zero downtime migration from Oracle to SAP HANA on AWS, the recommended services are: SAP HANA System Replication (HSR) for real-time data synchronization during cutover; EC2 Hibernate to pause the source instance and quickly resume on the target, minimizing downtime; and AWS Database Migration Service (DMS) for ongoing replication of changes from Oracle to HANA. AWS Snowball is unsuitable for near-zero downtime as it involves physical data transfer, and EBS Snapshots are for backup/recovery, not live replication.
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.
- ✗
Use AWS Snowball to transfer the initial Oracle data dump to AWS.
Why it's wrong here
Snowball is for offline data transfer, not for near-zero downtime.
- ✓
Use SAP HANA System Replication (HSR) for the final synchronization.
Why this is correct
HSR can be used to keep the HANA target in sync during the cutover.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
- ✓
Use EC2 Hibernate to pause the source instance during cutover.
Why this is correct
Hibernate can pause the instance to speed up the final cutover, but is not a replication method.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
- ✓
Use AWS Database Migration Service (DMS) for ongoing replication from Oracle to HANA.
Why this is correct
DMS supports minimal downtime migration 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.
- ✗
Use Amazon EBS Snapshots for point-in-time recovery and replication.
Why it's wrong here
Snapshots are for backup, not for continuous replication.
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 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. 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. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Visual reference
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.
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Technology — This question tests Technology — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Use SAP HANA System Replication (HSR) for the final synchronization. — To achieve near-zero downtime migration from Oracle to SAP HANA on AWS, the recommended services are: SAP HANA System Replication (HSR) for real-time data synchronization during cutover; EC2 Hibernate to pause the source instance and quickly resume on the target, minimizing downtime; and AWS Database Migration Service (DMS) for ongoing replication of changes from Oracle to HANA. AWS Snowball is unsuitable for near-zero downtime as it involves physical data transfer, and EBS Snapshots are for backup/recovery, not live replication.
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.
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.
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Last reviewed: Jun 20, 2026
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