Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A company has multiple Azure virtual networks (VNets) spread across three Azure regions (West US, East US, and West Europe). They also have an on-premises network connected to East US via ExpressRoute. They need to connect all VNets to each other and to the on-premises network. They require centralized management of routing and the ability to enforce security policies such as forcing all internet-bound traffic from any VNet to pass through a central firewall in East US. Which Azure solution 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
VNet peering between all VNets and use route tables for forced tunneling.
While VNet peering can connect VNets, managing multiple peering connections and route tables becomes complex and error-prone. Enforcing forced tunneling through a central firewall requires additional configuration and is not centralized.
B
Best answer
Azure Virtual WAN with a secured hub in East US.
Azure Virtual WAN provides a scalable hub-and-spoke architecture with centralized routing. A secured hub can include a firewall to enforce forced tunneling and security policies. All VNets and on-premises connect to the hub(s), simplifying management.
C
Distractor review
ExpressRoute Global Reach with VNet peering to connect all VNets.
ExpressRoute Global Reach connects on-premises networks to ExpressRoute circuits in different regions but does not directly connect VNets to each other. Additional VNet peering is required, and centralized security policy enforcement is not built-in.
D
Distractor review
VPN gateways with BGP to connect all VNets.
Setting up VPN gateways and BGP between multiple VNets is complex and not as scalable as Virtual WAN. It also lacks centralized routing and security policy enforcement.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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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?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Azure Virtual WAN with a secured hub in East US. — Azure Virtual WAN provides a centralized hub-and-spoke architecture with built-in routing, security, and the ability to enforce forced tunneling through a firewall in the hub. It simplifies connectivity across multiple regions and on-premises. VNet peering with route tables becomes complex and lacks centralized security enforcement. ExpressRoute Global Reach connects on-premises to VNets but does not provide VNet-to-VNet connectivity natively; additional VNet peering is needed. VPN gateways with BGP are complex to manage across many VNets and do not offer built-in centralized security policies.
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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