ANS-C01 Network Security, Compliance and Governance Practice Question
This ANS-C01 practice question tests your understanding of network security, compliance and governance. 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 needs to ensure that all outbound traffic from a VPC goes through a centralized inspection appliance in a different VPC. Which TWO actions must be taken to achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS Transit Gateway with appropriate route tables to direct traffic to the inspection VPC.
Option A is correct: Transit Gateway with route tables can direct traffic to the inspection VPC. Option C is correct: The inspection VPC must have routes to forward traffic back. Option B is wrong: VPC peering does not support transitive routing. Option D is wrong: Direct Connect is for on-premises. Option E is wrong: VPC endpoints do not route general internet traffic.
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.
✗
Deploy VPC endpoints for all AWS services used.
Why it's wrong here
VPC endpoints provide private access to AWS services, not internet routing.
✗
Use AWS Direct Connect Gateway to route traffic between VPCs.
Why it's wrong here
Direct Connect Gateway is for on-premises connectivity.
✗
Create VPC peering connections between all VPCs.
Why it's wrong here
VPC peering does not support transitive routing.
✓
Use AWS Transit Gateway with appropriate route tables to direct traffic to the inspection VPC.
Why this is correct
Transit Gateway supports transitive routing through route tables.
Related concept
Static NAT maps one inside address to one outside address.
✓
Configure the inspection VPC to forward traffic to its destination after inspection.
Why this is correct
The inspection VPC must route traffic back to the Transit Gateway.
Related concept
Static NAT maps one inside address to one outside address.
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: Use AWS Transit Gateway with appropriate route tables to direct traffic to the inspection VPC. — Option A is correct: Transit Gateway with route tables can direct traffic to the inspection VPC. Option C is correct: The inspection VPC must have routes to forward traffic back. Option B is wrong: VPC peering does not support transitive routing. Option D is wrong: Direct Connect is for on-premises. Option E is wrong: VPC endpoints do not route general internet traffic.
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.
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Question Discussion
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