- A
The route table is not associated with the subnet.
Correct. Even if the route table exists, it must be associated with the subnet for the routes to take effect.
- B
The Azure Firewall's private IP is not configured as the next hop; it should be the public IP.
Why wrong: For forced tunneling, the next hop should be the firewall's private IP, not public. Public IP would not work.
- C
The VNet peering is not configured correctly.
Why wrong: Peering issues could prevent routing, but if traffic is going directly to internet, peering is likely working; the route table is the issue.
- D
The Azure Firewall has a default route that bypasses itself.
Why wrong: The firewall itself does not have a route that causes traffic to bypass it; the issue is on the spoke subnet's routing.
Quick Answer
The answer is that the route table is not associated with the subnet. Even though a custom route table with a default route (0.0.0.0/0) pointing to the Azure Firewall’s private IP exists, it has no effect until it is explicitly linked to the spoke subnet. Without that association, the virtual machines in the subnet continue to use Azure’s system default route, which sends internet-bound traffic directly out via the internet next hop, completely bypassing the firewall. On the AZ-500 exam, this scenario tests your understanding of how forced tunneling works and the critical step of subnet association—a common trap is assuming that creating a route table is enough. The exam often pairs this with hub-and-spoke peering to see if you remember that a route table is just a configuration object until it is applied. Memory tip: “A route table without a subnet is like a lock without a door—it does nothing.”
AZ-500 Secure networking Practice Question
This AZ-500 practice question tests your understanding of secure networking. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 has an Azure virtual network with a subnet that contains virtual machines. They have deployed Azure Firewall in a hub VNet and peered the spoke VNet to the hub. They have configured a route table on the spoke subnet with a default route (0.0.0.0/0) pointing to the Azure Firewall's private IP as the next hop. However, traffic from the VMs is still going directly to the internet. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
The route table is not associated with the subnet.
The most likely cause is that the route table containing the default route (0.0.0.0/0) with the Azure Firewall's private IP as the next hop has not been associated with the spoke subnet. Without this association, the subnet's VMs will use the system default route, which sends internet-bound traffic directly out via the Azure default gateway (0.0.0.0/0, next hop type Internet), bypassing the firewall entirely.
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.
- ✓
The route table is not associated with the subnet.
Why this is correct
Correct. Even if the route table exists, it must be associated with the subnet for the routes to take effect.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The Azure Firewall's private IP is not configured as the next hop; it should be the public IP.
Why it's wrong here
For forced tunneling, the next hop should be the firewall's private IP, not public. Public IP would not work.
- ✗
The VNet peering is not configured correctly.
Why it's wrong here
Peering issues could prevent routing, but if traffic is going directly to internet, peering is likely working; the route table is the issue.
- ✗
The Azure Firewall has a default route that bypasses itself.
Why it's wrong here
The firewall itself does not have a route that causes traffic to bypass it; the issue is on the spoke subnet's routing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume that simply creating a route table with a default route to the firewall is sufficient, but they overlook the critical step of associating that route table with the subnet, which is a separate action in the Azure portal or via PowerShell/CLI.
Detailed technical explanation
How to think about this question
Under the hood, Azure uses a system route for 0.0.0.0/0 with a next hop type of 'Internet' on every subnet by default. To override this, a user-defined route (UDR) must be created and explicitly associated with the subnet. The UDR's next hop type must be 'Virtual appliance' and the next hop IP must be the Azure Firewall's private IP. If the route table is not associated, the subnet's effective routes will still show the system default route, and traffic will egress directly. This is a common misconfiguration in hub-and-spoke topologies where the route table is created but forgotten to be linked to the spoke subnet.
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
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Secure networking — study guide chapter
Learn the concepts, then practise the questions
- →
Secure networking practice questions
Targeted practice on this topic area only
- →
All AZ-500 questions
1,000 questions across all exam domains
- →
Microsoft Azure Security Engineer Associate AZ-500 study guide
Full concept coverage aligned to exam objectives
- →
AZ-500 practice test guide
How to use practice tests most effectively before exam day
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FAQ
Questions learners often ask
What does this AZ-500 question test?
Secure networking — This question tests Secure networking — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The route table is not associated with the subnet. — The most likely cause is that the route table containing the default route (0.0.0.0/0) with the Azure Firewall's private IP as the next hop has not been associated with the spoke subnet. Without this association, the subnet's VMs will use the system default route, which sends internet-bound traffic directly out via the Azure default gateway (0.0.0.0/0, next hop type Internet), bypassing the firewall entirely.
What should I do if I get this AZ-500 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
This AZ-500 practice question is part of Courseiva's free Microsoft 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 AZ-500 exam.
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