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 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.
Options A, C, and D are correct. AWS DMS can replicate data from Oracle to SAP HANA with minimal downtime. SAP HANA System Replication can be used for the final sync. EBS Snapshots provide a backup and restore option but are not for zero downtime. Option B (Snowball) is for large data transfer, not for ongoing replication. Option E (EC2 Hibernate) is not applicable for database migration.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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
Static NAT maps one inside address to one outside address.
✓
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
Static NAT maps one inside address to one outside address.
✓
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
Static NAT maps one inside address to one outside address.
✗
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: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. 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.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PAS-C01 NAT questions on configuration and troubleshooting.
Technology — This question tests Technology — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Use SAP HANA System Replication (HSR) for the final synchronization. — Options A, C, and D are correct. AWS DMS can replicate data from Oracle to SAP HANA with minimal downtime. SAP HANA System Replication can be used for the final sync. EBS Snapshots provide a backup and restore option but are not for zero downtime. Option B (Snowball) is for large data transfer, not for ongoing replication. Option E (EC2 Hibernate) is not applicable for database migration.
What should I do if I get this PAS-C01 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PAS-C01 NAT questions on configuration and troubleshooting.
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?
Static NAT maps one inside address to one outside address.
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Question Discussion
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