- A
Amazon CloudWatch
Why wrong: CloudWatch metrics do not provide physical layer diagnostics.
- B
VPC Flow Logs
Why wrong: Flow Logs capture IP traffic, not physical layer issues.
- C
AWS Support
Why wrong: AWS Support is not a service to troubleshoot physical layer; it's a support plan.
- D
AWS Direct Connect console
The console provides LOA-CFA status and physical link information.
Question 455 of 1,705
ANS-C01 Network Management and Operations Practice Question
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?
Answer choices
Why each option matters
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 the AWS Direct Connect console provides visibility into the physical layer status, including virtual interface state and LOA-CFA details. Option A (Amazon CloudWatch) is incorrect because CloudWatch monitors logical metrics (e.g., bandwidth, packet loss) but cannot directly report physical layer issues like a down virtual interface. Option B (VPC Flow Logs) is incorrect because flow logs capture IP traffic metadata, not physical connectivity status. Option C (AWS Support) is incorrect because although AWS Support can assist, it is a support plan, not a service that directly provides physical layer troubleshooting data; the console itself should be checked first.
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.
- ✗
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
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 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.
Quick reference
OSI Model Reference
| Layer | Name | PDU | Key Protocols / Devices |
|---|---|---|---|
| 7 | Application | Data | HTTP, HTTPS, DNS, SMTP, FTP, SSH |
| 6 | Presentation | Data | TLS / SSL, JPEG, ASCII encoding |
| 5 | Session | Data | NetBIOS, RPC, SIP |
| 4 | Transport | Segment / Datagram | TCP, UDP |
| 3 | Network | Packet | IP, ICMP, OSPF — Routers |
| 2 | Data Link | Frame | Ethernet, Wi-Fi, PPP — Switches, Bridges |
| 1 | Physical | Bits | Cables, NICs, Hubs, Repeaters |
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.
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
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: AWS Direct Connect console — The correct answer is D because the AWS Direct Connect console provides visibility into the physical layer status, including virtual interface state and LOA-CFA details. Option A (Amazon CloudWatch) is incorrect because CloudWatch monitors logical metrics (e.g., bandwidth, packet loss) but cannot directly report physical layer issues like a down virtual interface. Option B (VPC Flow Logs) is incorrect because flow logs capture IP traffic metadata, not physical connectivity status. Option C (AWS Support) is incorrect because although AWS Support can assist, it is a support plan, not a service that directly provides physical layer troubleshooting data; the console itself should be checked first.
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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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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