Quick Answer
The answer is AWS Database Migration Service (DMS). This service is the correct choice because it supports ongoing replication from a source Oracle database to a target SAP on AWS environment, allowing you to keep the source database fully operational during the initial load and then switch over with only seconds of downtime. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your ability to distinguish between database migration tools and server migration tools; a common trap is confusing AWS DMS with AWS SMS or AWS MGN, which handle server-level migration, not database-level replication. Remember that DMS handles data, while SMS and MGN handle instances. For a quick memory tip, think “DMS for Data, SMS for Servers” to avoid mixing them up on exam day.
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 an on-premises SAP ERP system to AWS. The system uses a large 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.
AWS Server Migration Service (SMS)
Why wrong: SMS is for server migration, not database.
AWS Application Migration Service (MGN)
Why wrong: MGN is for server migration, not database.
AWS Schema Conversion Tool (SCT)
Why wrong: SCT converts schemas, not migrate data with minimal downtime.
AWS Database Migration Service (DMS)
DMS supports minimal downtime migration with ongoing replication.
Answer choices
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)
AWS DMS can migrate databases with minimal downtime using ongoing replication. Option A is wrong because AWS SMS is for server migration, not database. Option B is wrong because AWS SCT is a schema conversion tool, not a migration service. Option D is wrong because AWS MGN is for server migration.
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
For each option: why learners choose it and why it is or isn't the right answer here.
AWS Server Migration Service (SMS)
Why it's wrong here
SMS is for server migration, not database.
AWS Application Migration Service (MGN)
Why it's wrong here
MGN is for server migration, not database.
AWS Schema Conversion Tool (SCT)
Why it's wrong here
SCT converts schemas, not migrate data with minimal downtime.
AWS Database Migration Service (DMS)
Why this is correct
DMS supports minimal downtime migration with ongoing replication.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
Common exam traps
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
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.
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
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. 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. 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
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 — study guide chapter
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FAQ
Migration — This question tests Migration — Standard ACLs match source addresses..
The correct answer is: AWS Database Migration Service (DMS) — AWS DMS can migrate databases with minimal downtime using ongoing replication. Option A is wrong because AWS SMS is for server migration, not database. Option B is wrong because AWS SCT is a schema conversion tool, not a migration service. Option D is wrong because AWS MGN is for server migration.
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.
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.
Standard ACLs match source addresses.
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Last reviewed: Jun 20, 2026
This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.
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