The answer is to set up a VPN connection as a backup to Direct Connect, alongside deploying connections in at least two separate locations and using diverse paths. This combination ensures high availability by eliminating single points of failure: a single location or AWS device can bring down your entire hybrid network, while a VPN backup provides a resilient, encrypted failover path if the physical Direct Connect link fails. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this concept tests your understanding of multi-region Direct Connect architecture for disaster recovery, often appearing in scenario-based questions where a trap is to assume that multiple virtual interfaces on the same device suffice. Remember the memory tip: “Two locations, two paths, one VPN backup” — think of it as a three-legged stool for resilience.
ANS-C01 Network Implementation Practice Question
This ANS-C01 practice question tests your understanding of network implementation. 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.
Which THREE considerations are important when implementing a multi-region Direct Connect architecture? (Choose 3)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Ensure Direct Connect connections are in at least two separate geographic locations.
To ensure high availability and disaster recovery, you should have Direct Connect connections in at least two separate locations, use diverse paths, and have a backup VPN connection. Using a single location creates a single point of failure. Using the same AWS device also creates a single point of failure. Direct Connect gateway can be used to associate multiple VPCs.
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.
✓
Ensure Direct Connect connections are in at least two separate geographic locations.
Why this is correct
Diverse locations provide redundancy against site failures.
Related concept
Static NAT maps one inside address to one outside address.
✗
Use a single Direct Connect connection to reduce complexity.
Why it's wrong here
A single connection is a single point of failure.
✗
Connect all Direct Connect connections to the same AWS Direct Connect device.
Why it's wrong here
Connecting to the same device creates a single point of failure at the device level.
✓
Use diverse paths and providers for the Direct Connect connections.
Why this is correct
Diverse paths and providers protect against carrier outages.
Related concept
Static NAT maps one inside address to one outside address.
✓
Set up a VPN connection as a backup to Direct Connect.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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 Implementation — This question tests Network Implementation — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Ensure Direct Connect connections are in at least two separate geographic locations. — To ensure high availability and disaster recovery, you should have Direct Connect connections in at least two separate locations, use diverse paths, and have a backup VPN connection. Using a single location creates a single point of failure. Using the same AWS device also creates a single point of failure. Direct Connect gateway can be used to associate multiple VPCs.
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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