Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
An internal web application is exposed through an Application Load Balancer (ALB). The ALB currently has only an HTTP listener on port 80. Security requires that all client traffic be encrypted in transit. What is the best next step?
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
Enable S3 bucket encryption for application files, since it ensures encryption in transit.
S3 encryption typically protects data at rest in S3. It does not encrypt the network path between clients and the ALB.
B
Best answer
Configure an ALB HTTPS listener on port 443 using an ACM certificate, and redirect HTTP (80) to HTTPS (443).
An HTTPS listener terminates TLS at the ALB, encrypting traffic in transit. Redirecting HTTP to HTTPS ensures clients use TLS for all requests.
C
Distractor review
Turn on default encryption for CloudFront origin access, which automatically encrypts all ALB traffic.
CloudFront origin encryption controls how CloudFront talks to its origin. It does not automatically add TLS encryption for clients directly connecting to the ALB.
D
Distractor review
Add KMS permissions to the ALB role so TLS is enabled automatically.
KMS permissions are related to encrypting AWS resources at rest. TLS for a listener is enabled through certificate configuration (ACM) and listener settings, not by KMS permissions.
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: Configure an ALB HTTPS listener on port 443 using an ACM certificate, and redirect HTTP (80) to HTTPS (443). — To meet an “encrypt in transit” requirement, TLS must be used for the client-to-ALB connection. For an ALB, the correct step is to add an HTTPS listener on port 443 with an ACM certificate. Then configure the existing HTTP (80) listener to redirect clients to HTTPS (443) so that all inbound client traffic is protected by TLS. Encryption at rest (for example, S3 or KMS) does not address the network path encryption requirement. Option A is incorrect because S3 encryption protects stored data, not client-to-ALB communications. Option C is incorrect because CloudFront settings do not ensure TLS for direct client-to-ALB traffic. Option D is incorrect because KMS permissions do not control whether a network listener uses TLS; TLS is controlled by listener and certificate configuration.
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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