The correct choice is to use the SAP DMO with the load and move method for Oracle to HANA. This approach solves the downtime problem by performing the bulk of the data migration—the initial full load—during the preparation phase, well before the cutover window. During the actual 4-hour downtime, only a small delta transfer of changes made since the initial load is migrated, which dramatically reduces the time needed compared to a full export and import. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your understanding of how to architect migrations under strict SLAs, specifically that a 1 Gbps Direct Connect link cannot push a 5 TB export in under 4 hours. A common trap is to assume a larger instance or offline shipping (Snowball) will help, but the bottleneck is network throughput and the need for near-zero downtime. Remember the key memory tip: “Load first, move last—delta is fast.”
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 company is migrating its SAP ERP system running on Oracle Database to SAP HANA on AWS. The current on-premises environment has a 5 TB Oracle database with high transaction volume. The migration must be completed within a 4-hour downtime window. The target environment on AWS uses an SAP-certified instance with 1 TB of RAM. The company has a 1 Gbps AWS Direct Connect connection. The migration team is considering using SAP DMO with SUM. However, during a test run, the database export took 6 hours, exceeding the downtime window. What should the migration team do to meet the 4-hour downtime window?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the SAP HANA Database Migration Option (DMO) with the 'load and move' method
Option C is correct because using the SAP HANA Database Migration Option (DMO) with the 'load and move' approach allows initial data load during the migration preparation phase and then only a delta transfer during the downtime window, reducing downtime. Option A is wrong because a larger instance may speed up processing but the export time is limited by the network (1 Gbps). Option B is wrong because AWS Snowball would add time for shipping and data transfer, likely exceeding the window. Option D is wrong because a homogenous migration to another Oracle database does not address the requirement to migrate to HANA.
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.
✗
Perform a system copy to an Oracle database on AWS first, then migrate to HANA
Why it's wrong here
This adds extra steps and does not meet the requirement to migrate directly to HANA.
✓
Use the SAP HANA Database Migration Option (DMO) with the 'load and move' method
Why this is correct
DMO with 'load and move' allows pre-loading data before the downtime window, reducing the downtime to a delta transfer.
Related concept
Standard ACLs match source addresses.
✗
Upgrade to a larger EC2 instance type with more CPU and memory for the HANA database
Why it's wrong here
The bottleneck is the export over the network, not the target instance size.
✗
Use AWS Snowball Edge to transfer the initial data and then perform a delta sync
Why it's wrong here
Snowball would require physical shipping and additional setup time, likely exceeding 4 hours.
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.
Migration — This question tests Migration — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Use the SAP HANA Database Migration Option (DMO) with the 'load and move' method — Option C is correct because using the SAP HANA Database Migration Option (DMO) with the 'load and move' approach allows initial data load during the migration preparation phase and then only a delta transfer during the downtime window, reducing downtime. Option A is wrong because a larger instance may speed up processing but the export time is limited by the network (1 Gbps). Option B is wrong because AWS Snowball would add time for shipping and data transfer, likely exceeding the window. Option D is wrong because a homogenous migration to another Oracle database does not address the requirement to migrate to HANA.
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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