Quick Answer
The answer is to use Azure Firewall Manager to deploy a secured virtual hub. This is correct because Azure Firewall Manager centrally manages security policies across Virtual WAN, and when you enable a secured virtual hub, Azure Firewall is automatically injected into the hub’s routing path, allowing it to inspect all traffic between spoke VNets and on-premises sites connected via the VPN gateway. On the AZ-500 exam, this scenario tests your understanding of how Azure Firewall Manager integrates natively with Virtual WAN to enforce east-west and north-south traffic inspection without complex user-defined routes. A common trap is choosing a Network Security Group (NSG) on the spoke subnet, but NSGs are not in the data path for traffic transiting the hub, or deploying a separate NVA in a spoke, which requires manual routing and breaks the hub-and-spoke model. Remember the memory tip: “Secure the hub, not the spoke” — Azure Firewall Manager secures traffic at the hub, where all paths converge.
This AZ-500 practice question tests your understanding of secure networking. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Your organization uses Azure Virtual WAN. You need to secure traffic between a spoke VNet and an on-premises site that connects via a Virtual WAN VPN gateway. What is the best way to inspect traffic?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Deploy Azure Firewall in the spoke VNet.
Why wrong: Not in the transit path.
Deploy a third-party NVA in the spoke VNet.
Why wrong: Traffic may not route through it.
Apply NSG rules on the spoke subnet.
Why wrong: NSG only controls traffic entering the subnet.
Use Azure Firewall Manager to deploy a secured virtual hub.
Firewall Manager integrates with Virtual WAN.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use Azure Firewall Manager to deploy a secured virtual hub.
Option D is correct because Azure Firewall Manager can be used in Virtual WAN to secure hub traffic. Option A is wrong because NSG is not in the path. Option B is wrong because a separate NVA would require complex routing. Option C is wrong because Azure Firewall in a spoke is not in the path.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Deploy Azure Firewall in the spoke VNet.
Why it's wrong here
Not in the transit path.
Deploy a third-party NVA in the spoke VNet.
Why it's wrong here
Traffic may not route through it.
Apply NSG rules on the spoke subnet.
Why it's wrong here
NSG only controls traffic entering the subnet.
Use Azure Firewall Manager to deploy a secured virtual hub.
Common exam traps
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
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.
What to study next
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related AZ-500 subnetting questions on CIDR, address ranges, and subnet selection.
Secure networking — study guide chapter
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FAQ
Secure networking — This question tests Secure networking — CIDR notation defines the prefix length..
The correct answer is: Use Azure Firewall Manager to deploy a secured virtual hub. — Option D is correct because Azure Firewall Manager can be used in Virtual WAN to secure hub traffic. Option A is wrong because NSG is not in the path. Option B is wrong because a separate NVA would require complex routing. Option C is wrong because Azure Firewall in a spoke is not in the path.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related AZ-500 subnetting questions on CIDR, address ranges, and subnet selection.
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
CIDR notation defines the prefix length.
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Last reviewed: Jun 20, 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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