The answer is AWS Schema Conversion Tool (SCT) and AWS Database Migration Service (DMS). These two services work together to handle an Oracle to Aurora MySQL migration using SCT and DMS: SCT first converts the Oracle schema, including stored procedures and data types, into a MySQL-compatible format, while DMS then performs the live data migration with ongoing replication from the source to the target, enabling near-zero downtime and ensuring data consistency. On the AWS Certified Database Specialty DBS-C01 exam, this scenario tests your understanding of heterogeneous migrations and the specific roles of each service; a common trap is choosing AWS Snowball for offline transfer, which would introduce downtime, or assuming EC2 is required. Remember the pairing: SCT for schema conversion, DMS for data movement—think "SCT changes the shape, DMS moves the data."
DBS-C01 Deployment and Migration Practice Question
This DBS-C01 practice question tests your understanding of deployment and 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 a 200 GB Oracle database to Amazon Aurora MySQL. They want to minimize downtime and ensure data consistency. Which two services should they use together? (Choose TWO.)
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 Schema Conversion Tool (SCT)
Options B and D are correct. AWS SCT converts the Oracle schema to MySQL-compatible format, and AWS DMS performs the data migration with ongoing replication to minimize downtime. Option A is wrong because Snowball is for offline data transfer, which would introduce downtime. Option C is wrong because Data Pipeline is not the primary migration tool. Option E is wrong because EC2 is not needed.
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.
✗
AWS Snowball Edge
Why it's wrong here
Snowball is for offline transfer, which would cause downtime during data loading.
✓
AWS Schema Conversion Tool (SCT)
Why this is correct
SCT converts Oracle schema to Aurora MySQL.
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.
✓
AWS Database Migration Service (DMS)
Why this is correct
DMS handles data migration with ongoing replication.
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.
✗
AWS Data Pipeline
Why it's wrong here
Data Pipeline is for workflow scheduling, not direct migration.
✗
Amazon EC2 with Oracle installed
Why it's wrong here
EC2 is not a service for migration; it would be an intermediate step.
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 DBS-C01 NAT questions on configuration and troubleshooting.
Deployment and Migration — This question tests Deployment and Migration — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: AWS Schema Conversion Tool (SCT) — Options B and D are correct. AWS SCT converts the Oracle schema to MySQL-compatible format, and AWS DMS performs the data migration with ongoing replication to minimize downtime. Option A is wrong because Snowball is for offline data transfer, which would introduce downtime. Option C is wrong because Data Pipeline is not the primary migration tool. Option E is wrong because EC2 is not needed.
What should I do if I get this DBS-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 DBS-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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Question Discussion
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