- A
IP flow verify
Why wrong: IP flow verify only tells you whether an NSG rule allows or blocks a flow, not the packet contents.
- B
Connection troubleshoot
Why wrong: Connection troubleshoot tests connectivity, but it does not provide captured packets for later analysis.
- C
Packet capture
Packet capture records network traffic on the VM NIC so the administrator can analyze the exchange later. It is the right choice when the problem may involve retransmissions, handshake failures, or other packet-level behavior rather than only a routing or NSG question.
- D
Effective routes
Why wrong: Effective routes helps with path selection, but it does not capture actual packet data.
Question 992 of 1,170
AZ-104 Implement and Manage Virtual Networking Practice Question
This AZ-104 practice question tests your understanding of implement and manage virtual networking. 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 web application on a VM is failing on TCP 8443. The administrator wants to capture packets on the VM NIC to inspect retransmissions and handshake details after the test run. Which Network Watcher capability should be used?
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
✓
Packet capture
Packet capture in Network Watcher allows you to capture network traffic to and from a VM, including TCP retransmissions and handshake details (SYN, SYN-ACK, ACK). This is the correct tool for inspecting raw packets after a test run to diagnose issues like failed connections on TCP 8443.
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.
- ✗
IP flow verify
Why it's wrong here
IP flow verify only tells you whether an NSG rule allows or blocks a flow, not the packet contents.
When this WOULD be correct
When an administrator needs to verify whether a specific TCP packet on port 8443 is allowed or blocked by NSG rules, and the question asks for a diagnostic tool to test connectivity without capturing full packet data.
- ✗
Connection troubleshoot
Why it's wrong here
Connection troubleshoot tests connectivity, but it does not provide captured packets for later analysis.
When this WOULD be correct
When the question asks to diagnose a connectivity issue from a VM to a destination (e.g., a specific IP and port) and requires a report on latency, packet loss, and hop-by-hop path, without needing the actual packet data.
- ✓
Packet capture
Why this is correct
Packet capture records network traffic on the VM NIC so the administrator can analyze the exchange later. It is the right choice when the problem may involve retransmissions, handshake failures, or other packet-level behavior rather than only a routing or NSG question.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Effective routes
Why it's wrong here
Effective routes helps with path selection, but it does not capture actual packet data.
When this WOULD be correct
When a VM cannot connect to a destination and you need to verify if the expected routes (e.g., forced tunneling, UDR) are actually applied to the NIC, Effective routes would be the correct tool to diagnose routing issues.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-104 exam frequently reuses these exact scenarios with slightly different constraints.
✓Packet captureCorrect answer▾
Why this is correct
Packet capture records network traffic on the VM NIC so the administrator can analyze the exchange later. It is the right choice when the problem may involve retransmissions, handshake failures, or other packet-level behavior rather than only a routing or NSG question.
✗IP flow verifyWrong answer — click to see why▾
Why this is wrong here
IP flow verify checks if traffic is allowed or denied to/from a VM, but it does not capture packets for post-run analysis of retransmissions or handshake details.
★ When this WOULD be the correct answer
When an administrator needs to verify whether a specific TCP packet on port 8443 is allowed or blocked by NSG rules, and the question asks for a diagnostic tool to test connectivity without capturing full packet data.
Why candidates choose this
Candidates may confuse IP flow verify with packet capture because both involve network traffic analysis, but IP flow verify is a quick connectivity test, not a capture tool.
✗Connection troubleshootWrong answer — click to see why▾
Why this is wrong here
Connection troubleshoot tests connectivity and identifies issues like blocked ports or latency, but it does not capture packets for post-run analysis of retransmissions and handshake details.
★ When this WOULD be the correct answer
When the question asks to diagnose a connectivity issue from a VM to a destination (e.g., a specific IP and port) and requires a report on latency, packet loss, and hop-by-hop path, without needing the actual packet data.
Why candidates choose this
Candidates may confuse 'troubleshoot' with 'capture', thinking that diagnosing a connection problem includes packet-level inspection, but Connection troubleshoot only provides connectivity test results, not raw packet data.
✗Effective routesWrong answer — click to see why▾
Why this is wrong here
Effective routes shows the effective routes applied to a VM's NIC, but it does not capture or inspect network packets. It cannot be used to analyze retransmissions or handshake details on TCP 8443.
★ When this WOULD be the correct answer
When a VM cannot connect to a destination and you need to verify if the expected routes (e.g., forced tunneling, UDR) are actually applied to the NIC, Effective routes would be the correct tool to diagnose routing issues.
Why candidates choose this
Candidates may confuse 'effective routes' with 'packet capture' because both involve network troubleshooting, but they serve different purposes: routes deal with path selection, not packet-level inspection.
Analysis generated from the official AZ-104blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse IP flow verify or Connection troubleshoot with packet capture, not realizing that only packet capture provides raw packet data for analyzing retransmissions and handshake details.
Detailed technical explanation
How to think about this question
Packet capture uses the Azure VM agent to run a network trace (e.g., tcpdump on Linux or netsh on Windows) and stores the output in a .cap or .pcap file. This allows you to analyze TCP sequence numbers, retransmission timers, and three-way handshake failures using tools like Wireshark. In real-world scenarios, packet capture is essential for diagnosing issues like half-open connections or TCP window scaling problems that are invisible to higher-level connectivity tests.
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.
TExam Day Tips
- 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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this AZ-104 question test?
Implement and Manage Virtual Networking — This question tests Implement and Manage Virtual Networking — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Packet capture — Packet capture in Network Watcher allows you to capture network traffic to and from a VM, including TCP retransmissions and handshake details (SYN, SYN-ACK, ACK). This is the correct tool for inspecting raw packets after a test run to diagnose issues like failed connections on TCP 8443.
What should I do if I get this AZ-104 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
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