The answer is AWS Database Migration Service (DMS). This service is the correct choice because it supports ongoing replication from an on-premises Oracle database to Amazon RDS or EC2, enabling a minimal downtime migration by keeping the source and target synchronized during the cutover window. For the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your understanding of database-specific migration tools versus general data transfer or server replication services. A common trap is confusing DMS with AWS Snowball, which is designed for large offline data loads, not continuous change data capture, or with CloudEndure, which handles server-level block replication rather than database-level transactions. To remember this, think of DMS as the “database replication specialist” for SAP on Oracle—it’s the only service that can perform live, minimal-downtime migrations while preserving transactional integrity.
PAS-C01 Technology Practice Question
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 on-premises SAP landscape to AWS. The SAP system uses Oracle Database. The migration must minimize downtime. Which AWS service should be used for the database migration?
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
✓
AWS Database Migration Service (DMS)
Option D is correct because AWS DMS supports minimal downtime migrations for Oracle to Amazon RDS or EC2. Option A is incorrect because Snowball is for large data transfers, not continuous replication. Option B is incorrect because S3 is for object storage, not database migration. Option C is incorrect because CloudEndure is for server migration, not database-specific 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.
✗
AWS Snowball Edge
Why it's wrong here
Snowball is for offline data transfer, not minimal downtime replication.
✓
AWS Database Migration Service (DMS)
Why this is correct
AWS DMS supports ongoing replication to minimize downtime during migration.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
✗
AWS CloudEndure Migration
Why it's wrong here
CloudEndure is for server migration, not optimized for database replication.
✗
Amazon S3 Transfer Acceleration
Why it's wrong here
S3 Transfer Acceleration speeds up uploads to S3, not database migration.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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.
Technology — This question tests Technology — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: AWS Database Migration Service (DMS) — Option D is correct because AWS DMS supports minimal downtime migrations for Oracle to Amazon RDS or EC2. Option A is incorrect because Snowball is for large data transfers, not continuous replication. Option B is incorrect because S3 is for object storage, not database migration. Option C is incorrect because CloudEndure is for server migration, not database-specific 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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Question Discussion
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