- A
Effective routes for the network interface
Effective routes reveal the current routing entries applied to the VM NIC.
- B
NSG flow logs
Why wrong: NSG flow logs show allowed and denied flows rather than the active routing table.
- C
Azure Advisor recommendations
Why wrong: Advisor does not display effective route entries.
- D
Diagnostic settings for the activity log
Why wrong: Activity log diagnostics capture control-plane operations, not active NIC routing.
Question 755 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. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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.
Traffic from VM-App01 is unexpectedly reaching the internet through a network virtual appliance. You need to determine which route is currently applied to the virtual machine network interface. Which Azure 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 for the network interface
Effective routes for the network interface show the actual routes applied to a VM's NIC, including system routes, BGP routes, and user-defined routes (UDRs). Since traffic is unexpectedly reaching the internet through an NVA, you need to verify which route (e.g., a UDR with next hop type VirtualAppliance) is currently active. This tool directly displays the effective route table for the specific NIC, allowing you to identify the misconfigured route.
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.
- ✓
Effective routes for the network interface
Why this is correct
Effective routes reveal the current routing entries applied to the VM NIC.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
NSG flow logs
Why it's wrong here
NSG flow logs show allowed and denied flows rather than the active routing table.
When this WOULD be correct
When you need to analyze network traffic patterns to identify whether traffic is being allowed or blocked by NSG rules, or to troubleshoot connectivity issues related to NSG rules. For example: 'Users report that VM-App01 cannot connect to the internet. Which tool should you use to see if traffic is being denied by an NSG?'
- ✗
Azure Advisor recommendations
Why it's wrong here
Advisor does not display effective route entries.
When this WOULD be correct
You need to identify if a virtual machine is missing a critical security update or has a configuration that could lead to a security vulnerability. Azure Advisor would analyze the VM's configuration and provide security recommendations.
- ✗
Diagnostic settings for the activity log
Why it's wrong here
Activity log diagnostics capture control-plane operations, not active NIC routing.
When this WOULD be correct
You need to audit who deleted a virtual network or changed a route table. Diagnostic settings for the activity log would capture these management events and send them to a Log Analytics workspace or storage account.
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 routes for the network interfaceCorrect answer▾
Why this is correct
Effective routes reveal the current routing entries applied to the VM NIC.
✗NSG flow logsWrong answer — click to see why▾
Why this is wrong here
NSG flow logs show traffic allowed or denied by network security groups, but they do not reveal which route (e.g., user-defined route) is applied to a network interface. The question asks for the currently applied route, not traffic flow logs.
★ When this WOULD be the correct answer
When you need to analyze network traffic patterns to identify whether traffic is being allowed or blocked by NSG rules, or to troubleshoot connectivity issues related to NSG rules. For example: 'Users report that VM-App01 cannot connect to the internet. Which tool should you use to see if traffic is being denied by an NSG?'
Why candidates choose this
Candidates may confuse NSG flow logs with route analysis because both involve network troubleshooting, and flow logs provide detailed traffic data that might indirectly hint at routing issues, but they do not show the effective route table.
✗Azure Advisor recommendationsWrong answer — click to see why▾
Why this is wrong here
Azure Advisor provides recommendations for best practices (e.g., cost, security, reliability), but it does not show the actual applied routes on a network interface. To determine which route is currently applied, you need to view effective routes, which are specific to the NIC.
★ When this WOULD be the correct answer
You need to identify if a virtual machine is missing a critical security update or has a configuration that could lead to a security vulnerability. Azure Advisor would analyze the VM's configuration and provide security recommendations.
Why candidates choose this
Candidates may think Azure Advisor can diagnose network routing issues because it offers recommendations for various Azure resources, but it does not provide real-time routing information.
✗Diagnostic settings for the activity logWrong answer — click to see why▾
Why this is wrong here
Diagnostic settings for the activity log capture control-plane operations (e.g., resource creation or deletion), not data-plane traffic routing. They cannot show which route is applied to a VM's network interface.
★ When this WOULD be the correct answer
You need to audit who deleted a virtual network or changed a route table. Diagnostic settings for the activity log would capture these management events and send them to a Log Analytics workspace or storage account.
Why candidates choose this
Candidates may confuse 'diagnostic settings' with network diagnostics, or think activity logs include all network events, not realizing they only cover management operations.
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 often confuse network security group (NSG) flow logs with routing diagnostics, but NSG flow logs only show traffic filtering decisions, not the path traffic takes based on routes.
Trap categories for this question
Command / output trap
NSG flow logs show allowed and denied flows rather than the active routing table.
Detailed technical explanation
How to think about this question
Effective routes are computed by Azure based on the combination of system routes, BGP routes (if VPN/ExpressRoute is used), and UDRs applied to the subnet. The route with the longest prefix match (most specific) wins, and if multiple routes have the same prefix, the priority is: UDR > BGP > system route. In this scenario, a UDR with next hop type VirtualAppliance (pointing to the NVA's private IP) is likely overriding the default 0.0.0.0/0 system route, forcing internet-bound traffic through the NVA.
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.
What to study next
Got this wrong? Here's your next step.
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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 for the network interface — Effective routes for the network interface show the actual routes applied to a VM's NIC, including system routes, BGP routes, and user-defined routes (UDRs). Since traffic is unexpectedly reaching the internet through an NVA, you need to verify which route (e.g., a UDR with next hop type VirtualAppliance) is currently active. This tool directly displays the effective route table for the specific NIC, allowing you to identify the misconfigured route.
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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