Quick Answer
The answer is the AWS Direct Connect console. This is correct because physical layer troubleshooting for Direct Connect begins with verifying the Letter of Authorization and Connecting Facility Assignment (LOA-CFA) status, which is only visible in the Direct Connect console; it confirms whether the cross-connect has been completed and is active at the colocation facility. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this question tests your ability to distinguish between physical and logical troubleshooting layers—a common trap is reaching for CloudWatch metrics or VPC Flow Logs, which only monitor logical IP traffic and cannot reveal physical cabling or cross-connect issues. Remember that when the virtual interface status is down, the root cause is almost always at layer 1, so the console is your first stop. A helpful memory tip: “Physical problems need physical tools—the console shows the cable, not the packet.”
This ANS-C01 practice question tests your understanding of network management and operations. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 AWS Direct Connect to connect its on-premises data center to a VPC. The network team notices that traffic from on-premises to the VPC is intermittently dropping. You check the Direct Connect virtual interface status and find it is 'down'. Which AWS service should you use to troubleshoot the physical layer connectivity?
Amazon CloudWatch
Why wrong: CloudWatch metrics do not provide physical layer diagnostics.
VPC Flow Logs
Why wrong: Flow Logs capture IP traffic, not physical layer issues.
AWS Support
Why wrong: AWS Support is not a service to troubleshoot physical layer; it's a support plan.
AWS Direct Connect console
The console provides LOA-CFA status and physical link information.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS Direct Connect console
The correct answer is D because AWS Direct Connect Troubleshooting Guide recommends checking the cross-connect and using the AWS Direct Connect console to view the LOA-CFA status. Option A is wrong because AWS Support is not a service but a support plan. Option B is wrong because CloudWatch metrics show logical metrics, not physical layer. Option C is wrong because VPC Flow Logs capture IP traffic logs, not physical connectivity.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon CloudWatch
Why it's wrong here
CloudWatch metrics do not provide physical layer diagnostics.
VPC Flow Logs
Why it's wrong here
Flow Logs capture IP traffic, not physical layer issues.
AWS Support
Why it's wrong here
AWS Support is not a service to troubleshoot physical layer; it's a support plan.
AWS Direct Connect console
Why this is correct
The console provides LOA-CFA status and physical link information.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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.
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FAQ
Network Management and Operations — This question tests Network Management and Operations — Read the scenario before looking for a memorised answer..
The correct answer is: AWS Direct Connect console — The correct answer is D because AWS Direct Connect Troubleshooting Guide recommends checking the cross-connect and using the AWS Direct Connect console to view the LOA-CFA status. Option A is wrong because AWS Support is not a service but a support plan. Option B is wrong because CloudWatch metrics show logical metrics, not physical layer. Option C is wrong because VPC Flow Logs capture IP traffic logs, not physical connectivity.
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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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.
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