- A
Connection troubleshoot
Why wrong: Connection troubleshoot tests end-to-end connectivity, but it does not show the NIC's selected route.
- B
Effective routes
Effective routes shows the routes applied to the NIC and which next hop Azure will use for the destination.
- C
IP flow verify
Why wrong: IP flow verify is for NSG allow or deny decisions, not for route selection analysis.
- D
Packet capture
Why wrong: Packet capture collects traffic for inspection, but it does not identify the selected routing entry.
Question 593 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.
After a user-defined route and VNet peering were added, a VM in a spoke subnet still does not reach 10.20.4.8 as expected. You need to confirm which route Azure will actually select on that VM's NIC, including any propagated routes and the route that wins. Which Network Watcher tool should you use?
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
✓
Effective routes
Effective routes displays the actual routes applied to a network interface, including user-defined routes (UDRs), BGP-propagated routes, and VNet peering routes, along with the route priority (based on the longest prefix match and route source precedence). This allows you to see exactly which route wins for the destination 10.20.4.8, resolving why the VM cannot reach it despite the configured UDR and peering.
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.
- ✗
Connection troubleshoot
Why it's wrong here
Connection troubleshoot tests end-to-end connectivity, but it does not show the NIC's selected route.
When this WOULD be correct
Connection troubleshoot would be correct if the question asked to diagnose why a VM cannot reach a specific IP address, including checking for network security group (NSG) rules, user-defined routes, and path latency, without needing to see the effective route table.
- ✓
Effective routes
Why this is correct
Effective routes shows the routes applied to the NIC and which next hop Azure will use for the destination.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
IP flow verify
Why it's wrong here
IP flow verify is for NSG allow or deny decisions, not for route selection analysis.
- ✗
Packet capture
Why it's wrong here
Packet capture collects traffic for inspection, but it does not identify the selected routing entry.
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.
✓Effective routesCorrect answer▾
Why this is correct
Effective routes shows the routes applied to the NIC and which next hop Azure will use for the destination.
✗Connection troubleshootWrong answer — click to see why▾
Why this is wrong here
Connection troubleshoot tests end-to-end connectivity between a source and destination, but it does not show the effective route table applied to a specific NIC. The question asks to confirm which route Azure will select, which requires viewing the effective routes, not testing connectivity.
★ When this WOULD be the correct answer
Connection troubleshoot would be correct if the question asked to diagnose why a VM cannot reach a specific IP address, including checking for network security group (NSG) rules, user-defined routes, and path latency, without needing to see the effective route table.
Why candidates choose this
Candidates may think that testing connectivity (Connection troubleshoot) will reveal routing issues, but it only reports connectivity success/failure and potential issues, not the actual route selection logic.
✗IP flow verifyWrong answer — click to see why▾
Why this is wrong here
IP flow verify tests connectivity by checking if traffic is allowed or denied by security rules, but it does not show the actual route selected from multiple possible routes, including propagated routes. The question asks for confirming which route wins, which requires effective routes.
★ When this WOULD be the correct answer
IP flow verify would be correct if the question asked: 'You need to test whether a specific TCP packet from a VM to 10.20.4.8 is allowed or blocked by NSG rules, and you suspect a security rule is causing the issue.'
Why candidates choose this
Candidates may confuse connectivity testing with route verification, thinking IP flow verify can also diagnose routing issues because it tests end-to-end connectivity.
✗Packet captureWrong answer — click to see why▾
Why this is wrong here
Packet capture captures raw network traffic but does not analyze routing tables or show which route is selected for a specific destination. It cannot confirm the effective route on a VM's NIC.
★ When this WOULD be the correct answer
Packet capture would be correct when you need to inspect actual packets sent/received by a VM to diagnose issues like packet loss, retransmissions, or protocol-level problems, such as verifying if traffic is being dropped by a firewall or if TCP handshake completes.
Why candidates choose this
Candidates may think packet capture is the most comprehensive tool for network troubleshooting, not realizing that the question specifically asks about route selection, which is a routing table analysis problem, not a 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' (which checks NSG rules) with route verification, but IP flow verify does not show the routing table or the winning route for a destination IP.
Trap categories for this question
Command / output trap
Connection troubleshoot tests end-to-end connectivity, but it does not show the NIC's selected route.
Detailed technical explanation
How to think about this question
Azure uses a route selection algorithm that first matches the longest prefix, then breaks ties by route source precedence: user-defined routes (UDRs) override BGP routes, which override system routes (including VNet peering). Effective routes shows the final resolved route for each prefix, including the next hop type and IP, and is retrieved via the Azure Resource Manager REST API or the Azure portal, reflecting the state of the NIC's effective routing table after all policies are applied.
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: Effective routes — Effective routes displays the actual routes applied to a network interface, including user-defined routes (UDRs), BGP-propagated routes, and VNet peering routes, along with the route priority (based on the longest prefix match and route source precedence). This allows you to see exactly which route wins for the destination 10.20.4.8, resolving why the VM cannot reach it despite the configured UDR and peering.
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
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 11, 2026
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