- A
Configure RDS to send automated backups directly to the cross-region S3 bucket using the AWS Backup service.
Why wrong: RDS automated backups cannot be sent directly to S3; they are stored in RDS managed storage.
- B
Enable automated backups on the RDS instance, configure cross-Region backup copy to a destination Region, and store the backups in an S3 bucket with S3 Object Lock enabled for retention.
RDS supports cross-Region automated backup copy and S3 Object Lock can enforce retention.
- C
Use AWS Database Migration Service (DMS) to continuously replicate the database to an S3 bucket in the target region.
Why wrong: DMS is for migration, not for backup retention.
- D
Create manual snapshots of the RDS instance, copy them to the cross-region S3 bucket using AWS CLI, and set a lifecycle policy for retention.
Why wrong: Manual process requires ongoing administrative effort.
DBS-C01 Database Security Practice Question
This DBS-C01 practice question tests your understanding of database security. 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 has an Amazon RDS for SQL Server Multi-AZ DB instance with a standby replica in a different AWS Region. The database is encrypted with a KMS key. The company needs to implement automated backups that are also encrypted and stored in a cross-region S3 bucket. The backups must be retained for 3 years. Which solution meets these requirements with the LEAST administrative effort?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"least"Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Enable automated backups on the RDS instance, configure cross-Region backup copy to a destination Region, and store the backups in an S3 bucket with S3 Object Lock enabled for retention.
Option D is correct because enabling automated backups with cross-region copy to an S3 bucket with S3 Object Lock (which supports retention) is the least effort. Option A is wrong because RDS does not directly back up to S3. Option B is wrong because manual backups require operational overhead. Option C is wrong because DMS is not designed for this purpose.
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.
- ✗
Configure RDS to send automated backups directly to the cross-region S3 bucket using the AWS Backup service.
Why it's wrong here
RDS automated backups cannot be sent directly to S3; they are stored in RDS managed storage.
- ✓
Enable automated backups on the RDS instance, configure cross-Region backup copy to a destination Region, and store the backups in an S3 bucket with S3 Object Lock enabled for retention.
Why this is correct
RDS supports cross-Region automated backup copy and S3 Object Lock can enforce retention.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Use AWS Database Migration Service (DMS) to continuously replicate the database to an S3 bucket in the target region.
Why it's wrong here
DMS is for migration, not for backup retention.
- ✗
Create manual snapshots of the RDS instance, copy them to the cross-region S3 bucket using AWS CLI, and set a lifecycle policy for retention.
Why it's wrong here
Manual process requires ongoing administrative effort.
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.
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
Database Security — This question tests Database Security — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Enable automated backups on the RDS instance, configure cross-Region backup copy to a destination Region, and store the backups in an S3 bucket with S3 Object Lock enabled for retention. — Option D is correct because enabling automated backups with cross-region copy to an S3 bucket with S3 Object Lock (which supports retention) is the least effort. Option A is wrong because RDS does not directly back up to S3. Option B is wrong because manual backups require operational overhead. Option C is wrong because DMS is not designed for this purpose.
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: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
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Last reviewed: Jun 20, 2026
This DBS-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 DBS-C01 exam.
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