The answer is to upload the backup file to an Amazon S3 bucket. This is correct because the native SQL Server backup and restore feature for Amazon RDS requires the backup file to reside in an S3 bucket, from which RDS can access it using the `RESTORE DATABASE` command with the `FROM URL` option. The underlying technical concept is that RDS for SQL Server does not allow direct file system access or FTP uploads; instead, it integrates with S3 as the staging location for backup files. On the AWS Certified Database Specialty DBS-C01 exam, this question tests your understanding of the native restore workflow, often appearing as a trap where candidates mistakenly choose options like uploading directly to the RDS instance or using FTP. A common memory tip is "S3 first, restore second"—always stage your backup file in S3 before initiating the restore command.
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 1 TB SQL Server database to Amazon RDS for SQL Server. They want to use the native backup and restore feature. What must they do first?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Upload the backup file to an Amazon S3 bucket.
Option A is correct because native backup/restore to RDS requires storing backups in an S3 bucket. Option B is wrong because RDS does not support direct FTP. Option C is wrong because the backup file must be in S3, not uploaded to RDS directly. Option D is wrong because the backup file should be in S3, not stored on the RDS instance.
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.
✓
Upload the backup file to an Amazon S3 bucket.
Why this is correct
Native restore in RDS SQL Server requires the backup file to be in S3.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Store the backup file on an EBS volume attached to the RDS instance.
Why it's wrong here
EBS volumes are not directly attached to RDS instances; RDS manages storage.
✗
Use FTP to transfer the backup file directly to the RDS instance.
Why it's wrong here
RDS does not allow direct FTP access to the instance.
✗
Use the AWS Management Console to upload the backup file to the RDS instance.
Why it's wrong here
RDS does not support direct upload of backup files via console.
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 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 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: Upload the backup file to an Amazon S3 bucket. — Option A is correct because native backup/restore to RDS requires storing backups in an S3 bucket. Option B is wrong because RDS does not support direct FTP. Option C is wrong because the backup file must be in S3, not uploaded to RDS directly. Option D is wrong because the backup file should be in S3, not stored on the RDS instance.
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: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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