The correct strategy is to use SAP HANA System Replication to initially load data from the source SAP HANA system and then perform a switchover, or alternatively use SAP DMO with SUM. This approach minimizes downtime because the initial data load occurs while the source Oracle database remains fully online, with only a brief outage needed for the final switchover. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your understanding of heterogeneous migration methods and the specific limitations of AWS services: SAP HANA does not support direct heterogeneous replication, AWS DMS cannot target SAP HANA natively, and a traditional export-import requires extended downtime. The key trap is assuming a generic AWS tool like DMS works for SAP HANA, when in fact only SAP-native tools like HANA System Replication or DMO support the live replication needed for an Oracle to SAP HANA migration on AWS with minimal downtime. Memory tip: think "HANA replicates live, DMO moves with minimal downtime—DMS and export-import are offline only."
PAS-C01 Technology Practice Question
This PAS-C01 practice question tests your understanding of technology. 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 its SAP ERP system running on Oracle to SAP HANA on AWS. The system has a database size of 2 TB. During migration planning, the team needs to minimize downtime. Which strategy should be used?
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 to initially load data from the source SAP HANA (or migrate using SAP DMO with SUM) and then switch over.
Option D is correct because using SAP HANA System Replication with initial load and then switching over minimizes downtime as data is replicated while source is online. Option A is wrong because SAP HANA doesn't support heterogeneous replication directly. Option B is wrong because DMS does not natively support SAP HANA as a target. Option C is wrong because it requires more downtime.
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.
✗
Take a full backup of Oracle, restore to SAP HANA, and then apply incremental logs.
Why it's wrong here
This approach is possible but requires more downtime than HSR.
✓
Use SAP HANA System Replication to initially load data from the source SAP HANA (or migrate using SAP DMO with SUM) and then switch over.
Why this is correct
SAP HANA System Replication allows near-zero downtime migration by replicating data while source is online.
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 the AWS Database Migration Service (DMS) to perform an online migration from Oracle to SAP HANA.
Why it's wrong here
DMS does not support SAP HANA as a target for heterogeneous migrations.
✗
Perform an export/import using SAP tools while the source database is online.
Why it's wrong here
Export/import requires downtime or has high latency.
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 to initially load data from the source SAP HANA (or migrate using SAP DMO with SUM) and then switch over. — Option D is correct because using SAP HANA System Replication with initial load and then switching over minimizes downtime as data is replicated while source is online. Option A is wrong because SAP HANA doesn't support heterogeneous replication directly. Option B is wrong because DMS does not natively support SAP HANA as a target. Option C is wrong because it requires more downtime.
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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