The answer is to configure a VPN connection over the Direct Connect public VIF to route Global Accelerator traffic. This is necessary because AWS Global Accelerator uses anycast IP addresses that are advertised over the public internet, not over Direct Connect’s public VIF, which only provides direct access to AWS public services like S3 or DynamoDB. By establishing a VPN tunnel over the public VIF, you create a routable path from your on-premises network to the Global Accelerator’s anycast IPs, forcing traffic through the Direct Connect link instead of the open internet. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this scenario tests your understanding of how Global Accelerator’s anycast routing differs from standard public service endpoints, and it’s a common trap to assume a public VIF alone can handle anycast traffic. Remember the key distinction: public VIFs serve AWS public endpoints, but Global Accelerator’s anycast IPs require a VPN overlay to be reachable over Direct Connect. Memory tip: “Anycast needs a tunnel—public VIF alone won’t funnel.”
ANS-C01 Network Management and Operations Practice Question
This ANS-C01 practice question tests your understanding of network management and operations. 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 has a Direct Connect connection with a private VIF and a public VIF. The private VIF is used to access VPC resources, and the public VIF is used to access AWS public services. Recently, the company enabled AWS Global Accelerator for its application. The network team notices that traffic to the application via Global Accelerator is not using the Direct Connect connection but is going over the internet. What should the team do to ensure traffic uses the Direct Connect public VIF?
Configure a VPN connection over the Direct Connect public VIF to route Global Accelerator traffic
Use a VPN over the public VIF to control routing, but Global Accelerator traffic typically goes over internet; however, using a VPN can force traffic via Direct Connect.
B
Advertise the Global Accelerator IP addresses on the on-premises router to route traffic via the public VIF
Why wrong: Global Accelerator IPs are not advertisable via BGP; they are anycast.
C
Attach a Direct Connect gateway to the Global Accelerator
Why wrong: Global Accelerator does not integrate with Direct Connect gateway.
D
Create a private VIF for Global Accelerator traffic
Why wrong: Private VIF is for VPC, not public services.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure a VPN connection over the Direct Connect public VIF to route Global Accelerator traffic
Option A is correct because Global Accelerator uses anycast IPs that are advertised over the public internet; to route traffic via Direct Connect, the on-premises routes must point to the public VIF. Option B is wrong because private VIF is for VPC access, not public services. Option C is wrong because the Direct Connect gateway is for private VIFs. Option D is wrong because VPN is not required.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Configure a VPN connection over the Direct Connect public VIF to route Global Accelerator traffic
Why this is correct
Use a VPN over the public VIF to control routing, but Global Accelerator traffic typically goes over internet; however, using a VPN can force traffic via Direct Connect.
Related concept
Read the scenario before looking for a memorised answer.
✗
Advertise the Global Accelerator IP addresses on the on-premises router to route traffic via the public VIF
Why it's wrong here
Global Accelerator IPs are not advertisable via BGP; they are anycast.
✗
Attach a Direct Connect gateway to the Global Accelerator
Why it's wrong here
Global Accelerator does not integrate with Direct Connect gateway.
✗
Create a private VIF for Global Accelerator traffic
Why it's wrong here
Private VIF is for VPC, not public services.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Identify which ANS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Network Management and Operations — This question tests Network Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure a VPN connection over the Direct Connect public VIF to route Global Accelerator traffic — Option A is correct because Global Accelerator uses anycast IPs that are advertised over the public internet; to route traffic via Direct Connect, the on-premises routes must point to the public VIF. Option B is wrong because private VIF is for VPC access, not public services. Option C is wrong because the Direct Connect gateway is for private VIFs. Option D is wrong because VPN is not required.
What should I do if I get this ANS-C01 question wrong?
Identify which ANS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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