Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A company has multiple Azure VNets deployed in a hub-spoke topology. They want to inspect all outbound internet traffic from spoke VMs using a central firewall and ensure that traffic from all VNets goes through the firewall before reaching the internet. They also need to log all outbound connections. Which architecture should they implement?
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
Distractor review
Deploy network virtual appliances (NVAs) in each spoke VNet and configure user-defined routes (UDRs) to route internet traffic to the NVAs
This approach is decentralized and creates management overhead. It does not provide a single inspection point or a single outbound public IP.
B
Best answer
Deploy Azure Firewall in the hub VNet and configure a default route (0.0.0.0/0) in each spoke's route table pointing to Azure Firewall as the next hop
This forces all outbound internet traffic from spoke VMs to pass through Azure Firewall in the hub, enabling inspection, logging, and a single public IP for outbound traffic.
C
Distractor review
Use Azure Application Gateway with Web Application Firewall (WAF) in the hub VNet to inspect all traffic
Application Gateway is a layer-7 load balancer for inbound HTTP/S traffic, not a firewall for outbound traffic. It does not handle general internet egress.
D
Distractor review
Deploy Azure Firewall in each spoke VNet and use Azure Monitor to aggregate logs
This is a distributed approach that complicates management and does not provide a centralized egress point. The requirement is to use a central firewall.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A company is designing hub-and-spoke networking. Spoke VNets must use a central Azure Firewall for outbound internet traffic. Which two configurations are required?
Question 2
A company is designing private access to a PaaS database from workloads in a VNet. The database should not be reachable over its public endpoint. What should be recommended?
Question 3
A data platform must support analytical queries over petabytes of files in a data lake, while preserving hierarchical namespaces and fine-grained ACLs. Which storage service should you design around?
Question 4
A database workload has an RPO of 15 minutes and an RTO of 4 hours. Cost is more important than near-zero data loss. Which design is usually more appropriate than synchronous multi-region replication?
Question 5
A hub-and-spoke Azure network must centralize outbound inspection and still allow spokes to resolve private endpoint DNS names. Which two components are commonly required? (Choose 2.)
Question 6
A multinational company uses Microsoft Entra ID and several Azure subscriptions. Security administrators need to review privileged role assignments every month and require justification for continued access. Which design should be recommended?
FAQ
Questions learners often ask
What does this AZ-305 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Deploy Azure Firewall in the hub VNet and configure a default route (0.0.0.0/0) in each spoke's route table pointing to Azure Firewall as the next hop — The recommended architecture is to deploy Azure Firewall in the hub VNet and configure forced tunneling for all spoke VNets to route internet-bound traffic through the firewall. This is achieved by creating a route table in each spoke with a default route (0.0.0.0/0) pointing to the firewall's private IP. The firewall can then inspect and log traffic. Deploying NVAs in each spoke is costly and complex. Azure Application Gateway is not a firewall. Forced tunneling in Azure typically requires a route table with a next hop of a virtual appliance.
What should I do if I get this AZ-305 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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