- A
Use SAP HANA system replication from the source Oracle database to the target HANA database
Why wrong: HANA system replication requires both source and target to be HANA databases.
- B
Use AWS Snowball Edge to transfer the Oracle backup files to AWS, then restore to HANA
Why wrong: Restoring from backup may not capture ongoing changes and is more complex.
- C
Use AWS DataSync to copy the Oracle data files to Amazon EFS, then import into HANA
Why wrong: DataSync is for file-level transfer, not database migration.
- D
Use AWS DMS with ongoing replication from Oracle to HANA, then perform a final cutover
DMS supports heterogeneous migrations and ongoing replication to minimize downtime.
Question 956 of 1,733
PAS-C01 Migration Practice Question
This PAS-C01 practice question tests your understanding of migration. 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 global company is migrating its SAP ERP system to AWS. The system runs SAP ECC on IBM AIX with Oracle Database. The company plans to move to SAP S/4HANA on AWS. The source system is 5 TB in size. The network bandwidth between the on-premises data center and AWS is 100 Mbps. The migration must be completed within a 2-week window with minimal downtime. The company has a SAP license that allows running S/4HANA on certified hardware. They have already used AWS SCT to convert the database schema to SAP HANA-compatible format. They now need to execute the data migration. The team is considering the following options:
Option A: Use AWS DMS with ongoing replication from Oracle to HANA, then perform a final cutover. Option B: Use AWS Snowball Edge to transfer the Oracle backup files to AWS, then restore to HANA. Option C: Use AWS DataSync to copy the Oracle data files to Amazon EFS, then import into HANA. Option D: Use SAP HANA system replication from the source Oracle database to the target HANA database.
Which option is the most feasible and efficient for this migration?
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 AWS DMS with ongoing replication from Oracle to HANA, then perform a final cutover
Option D is the most feasible because AWS DMS supports heterogeneous migrations from Oracle to SAP HANA, and the ongoing replication capability minimizes downtime during the cutover. Option A (SAP HANA system replication) is incorrect because it requires the source database to already be SAP HANA, not Oracle. Option B (Snowball Edge) is inefficient for this scenario because restoring from backup files does not provide ongoing replication, and the 2-week window with minimal downtime would be difficult to achieve. Option C (DataSync to EFS) is designed for file transfers, not database migration, and importing into HANA would require additional complex steps. The schema conversion has already been done with AWS SCT, so DMS can handle the data migration efficiently.
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 SAP HANA system replication from the source Oracle database to the target HANA database
Why it's wrong here
HANA system replication requires both source and target to be HANA databases.
- ✗
Use AWS Snowball Edge to transfer the Oracle backup files to AWS, then restore to HANA
Why it's wrong here
Restoring from backup may not capture ongoing changes and is more complex.
- ✗
Use AWS DataSync to copy the Oracle data files to Amazon EFS, then import into HANA
Why it's wrong here
DataSync is for file-level transfer, not database migration.
- ✓
Use AWS DMS with ongoing replication from Oracle to HANA, then perform a final cutover
Why this is correct
DMS supports heterogeneous migrations and ongoing replication to minimize downtime.
Related concept
Standard ACLs match source addresses.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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?
Migration — This question tests Migration — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Use AWS DMS with ongoing replication from Oracle to HANA, then perform a final cutover — Option D is the most feasible because AWS DMS supports heterogeneous migrations from Oracle to SAP HANA, and the ongoing replication capability minimizes downtime during the cutover. Option A (SAP HANA system replication) is incorrect because it requires the source database to already be SAP HANA, not Oracle. Option B (Snowball Edge) is inefficient for this scenario because restoring from backup files does not provide ongoing replication, and the 2-week window with minimal downtime would be difficult to achieve. Option C (DataSync to EFS) is designed for file transfers, not database migration, and importing into HANA would require additional complex steps. The schema conversion has already been done with AWS SCT, so DMS can handle the data migration efficiently.
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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Last reviewed: Jun 20, 2026
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