Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
An organization has deployed Azure Firewall and wants to inspect all outbound traffic from a virtual network (VNet) to the internet. The VNet already contains subnets with workloads. What is the required networking configuration to force traffic through Azure Firewall?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Configure a route table with a default route (0.0.0.0/0) pointing to the Azure Firewall private IP and associate it with the subnets.
This is the correct method to force all outbound traffic to traverse the firewall via a User Defined Route.
B
Distractor review
Add a Network Security Group (NSG) rule that allows all outbound traffic and associate it with the subnets.
NSGs filter traffic based on rules but do not route traffic; they cannot force traffic to a firewall.
C
Distractor review
Deploy an Application Gateway with Web Application Firewall (WAF) in front of the subnets.
Application Gateway handles inbound HTTP/S traffic and is not used for outbound routing or inspection.
D
Distractor review
Enable Azure DDoS Protection Standard on the VNet.
DDoS Protection mitigates distributed denial-of-service attacks but does not route or inspect outbound traffic.
Common exam trap
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Technical deep dive
How to think about this question
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.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Related practice questions
Related AZ-500 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
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Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
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FAQ
Questions learners often ask
What does this AZ-500 question test?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Configure a route table with a default route (0.0.0.0/0) pointing to the Azure Firewall private IP and associate it with the subnets. — To inspect all outbound internet traffic from a VNet using Azure Firewall, you must create a route table with a default route (0.0.0.0/0) that points to the Azure Firewall's private IP as the next hop, and associate that route table with the subnets. Without this User Defined Route (UDR), traffic will bypass the firewall. NSGs control traffic but do not route traffic; Application Gateway is for inbound web traffic; DDoS Protection provides volumetric protection but does not route traffic.
What should I do if I get this AZ-500 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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