Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A single EC2 instance hosts a database that needs low-latency block storage and a persistent volume that remains attached to the instance. Which AWS storage service is the best fit?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Amazon S3
S3 is object storage and is not designed to act as an attached block device for a database.
B
Best answer
Amazon EBS
EBS provides persistent block storage that can be attached to an EC2 instance with low latency.
C
Distractor review
Amazon EFS
EFS is a shared file system, which is useful for multiple instances but not as a block volume.
D
Distractor review
AWS Storage Gateway
Storage Gateway is for hybrid integration with on-premises environments, not a simple EC2 block volume.
Common exam trap
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.
Technical deep dive
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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A team needs to distribute TCP traffic (not HTTP) across multiple services. The services must see the original client source IP for auditing. Which AWS load balancer is the best fit?
Question 2
A team wants to run containerized services with AWS-managed orchestration and autoscaling. They do NOT require Kubernetes compatibility. Which AWS service choice is most appropriate to meet these goals?
Question 3
A solutions architect is designing an S3 bucket for a IoT ingestion API. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure? The design must avoid adding custom operational scripts.
Question 4
A solutions architect is designing an S3 bucket for a claims portal. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?
Question 5
A team wants to delegate IAM management to developers, but must ensure developers can never grant themselves permissions beyond a specific limit. Which AWS mechanism best matches this requirement?
Question 6
A solutions architect is designing an S3 bucket for a healthcare document service. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?
FAQ
Questions learners often ask
What does this SAA-C03 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Amazon EBS — Amazon EBS is the correct choice because it provides durable block storage designed for a single EC2 instance attachment. Databases need low-latency random I/O and block-level semantics, which EBS supports. It persists independently of the instance, so the data remains available after a reboot or replacement. S3 and EFS solve different storage patterns and are not the best match for an attached database volume. Why others are wrong: S3 stores objects, so it is not an attached block device and does not behave like a database volume. EFS is a shared file system and is useful when multiple instances need concurrent file access. Storage Gateway is meant for hybrid storage use cases, not for replacing EC2 instance block storage.
What should I do if I get this SAA-C03 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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