The correct configuration is to create a stateful rule group with a 'pass' action for the allowed domains using a domain list rule group. This works because AWS Network Firewall’s domain list rule groups match traffic based on fully qualified domain names (FQDNs) rather than IP addresses, allowing you to permit outbound HTTPS to specific domains while inspecting the state of the connection. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this scenario tests your understanding of stateful inspection versus stateless rules, and a common trap is choosing an IP set rule group, which would only match by IP and fail if the domain’s IP changes. Remember that domain list rule groups use Suricata-compatible rules for flexible domain matching, making them ideal for controlling outbound HTTPS by domain. Memory tip: think “Domain for Destination, Pass for Permission” to recall that domain lists with a pass action are the key to allowing specific outbound HTTPS traffic.
ANS-C01 Network Security, Compliance and Governance Practice Question
This ANS-C01 practice question tests your understanding of network security, compliance and governance. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 uses an AWS Network Firewall to inspect traffic between VPCs and the internet. They want to allow outbound HTTPS traffic only to specific domains. Which rule configuration should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a stateful rule group with a 'pass' action for the allowed domains using domain list rule group.
Domain list rule group in AWS Network Firewall can match FQDNs. Stateful rule groups inspect traffic states. Suricata compatible rules allow custom domain matching. IP set would match by IP, not domain.
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.
✗
Create a stateless rule group with a 'forward' action for the allowed IP addresses.
Why it's wrong here
Stateless rules do not inspect domain names; they work on IP/port.
✓
Create a stateful rule group with a 'pass' action for the allowed domains using domain list rule group.
Why this is correct
Domain list rule group allows matching by domain name in stateful rules.
Related concept
Static NAT maps one inside address to one outside address.
✗
Create a stateful rule group with a 'drop' action for all traffic and then 'pass' for the allowed domains using Suricata compatible rules.
Why it's wrong here
Correct approach is to use domain list rule group, not Suricata rules for simple domain filtering.
✗
Create an IP set rule group with the allowed domain IP addresses.
Why it's wrong here
IP set would match by IP, not domain; domains can resolve to multiple IPs.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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 ANS-C01 NAT questions on configuration and troubleshooting.
Network Security, Compliance and Governance — This question tests Network Security, Compliance and Governance — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Create a stateful rule group with a 'pass' action for the allowed domains using domain list rule group. — Domain list rule group in AWS Network Firewall can match FQDNs. Stateful rule groups inspect traffic states. Suricata compatible rules allow custom domain matching. IP set would match by IP, not domain.
What should I do if I get this ANS-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 ANS-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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This ANS-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 ANS-C01 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.