The correct steps are to take full and transaction log backups, use AWS DMS for ongoing replication, and restore the full backup with transaction logs to enable point-in-time recovery after migration. This combination ensures minimal downtime because transaction log backups capture all changes incrementally, allowing you to restore to any specific moment—a requirement for point-in-time recovery support. On the AWS Certified Database Specialty DBS-C01 exam, this scenario tests your understanding of native SQL Server backup strategies versus AWS-native tools; a common trap is choosing differential backups, which lack the granularity for point-in-time recovery, or snapshot backups, which RDS does not support for native restore. Remember the memory tip: “Full plus logs equals time travel; differential is just a shortcut.”
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 3 TB SQL Server database to Amazon RDS for SQL Server. The migration must have minimal downtime and support point-in-time recovery after migration. Which THREE steps should be included in the migration plan? (Choose three.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Take a full backup of the source database.
Options A, C, and E are correct. Full backup with transaction log backups allows point-in-time recovery and minimal downtime during restore. AWS DMS can be used for ongoing replication. Option B is wrong because differential backup alone does not allow point-in-time recovery. Option D is wrong because snapshot backup is not native to SQL Server and RDS does not support restoring from native snapshots.
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.
✗
Take a snapshot backup of the source database.
Why it's wrong here
RDS does not support restoring from native snapshots.
✗
Take a differential backup.
Why it's wrong here
Not necessary if using transaction log backups.
✓
Take a full backup of the source database.
Why this is correct
Required for initial restore.
Related concept
Static NAT maps one inside address to one outside address.
✓
Use AWS DMS for ongoing replication after initial restore.
Why this is correct
Minimizes downtime by replicating changes.
Related concept
Static NAT maps one inside address to one outside address.
✓
Take transaction log backups.
Why this is correct
Allow point-in-time recovery and minimize data loss.
Related concept
Static NAT maps one inside address to one outside address.
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: Take a full backup of the source database. — Options A, C, and E are correct. Full backup with transaction log backups allows point-in-time recovery and minimal downtime during restore. AWS DMS can be used for ongoing replication. Option B is wrong because differential backup alone does not allow point-in-time recovery. Option D is wrong because snapshot backup is not native to SQL Server and RDS does not support restoring from native snapshots.
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.
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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