Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company has two Azure virtual networks: VNet-A in the East US region and VNet-B in the West US region. Each VNet hosts a set of virtual machines that run a distributed application. The application requires private, low-latency communication between the VMs in VNet-A and VNet-B. The company wants to minimize operational complexity and avoid any additional billing for data transfer between the two VNets beyond the standard Azure data transfer charges. Which Azure service should the company use to connect the two virtual networks?
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
Azure Virtual Network Peering
Correct. Global VNet Peering connects VNets across Azure regions using Microsoft's backbone network, providing private, low-latency connectivity with minimal complexity and no additional gateway costs beyond standard data transfer charges.
B
Distractor review
Azure VPN Gateway (Site-to-Site)
Incorrect. While a VPN Gateway can connect VNets, it requires a gateway on each VNet and incurs hourly gateway costs plus data transfer charges. It is more complex than VNet Peering and introduces higher latency due to encryption overhead.
C
Distractor review
Azure ExpressRoute
Incorrect. ExpressRoute is designed for private connections between on-premises networks and Azure, not for directly connecting two Azure virtual networks. It would require additional routing configuration and extra costs.
D
Distractor review
Azure Front Door
Incorrect. Azure Front Door is a global HTTP/S load balancing and application acceleration service that operates at the application layer (Layer 7). It does not provide private network connectivity between virtual networks.
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.
Related practice questions
Related AZ-900 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
AZ-900 cloud concepts practice questions
Practise AZ-900 questions linked to AZ-900 cloud concepts.
AZ-900 Azure services practice questions
Practise AZ-900 questions linked to AZ-900 Azure services.
AZ-900 pricing and support practice questions
Practise AZ-900 questions linked to AZ-900 pricing and support.
AZ-900 security and compliance practice questions
Practise AZ-900 questions linked to AZ-900 security and compliance.
AZ-900 governance practice questions
Practise AZ-900 questions linked to AZ-900 governance.
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 developer is building a serverless application that requires integration with an on-premises SQL Server database for real-time data processing. The on-premises network is connected to Azure via a site-to-site VPN. Which Azure service would allow the function to securely access the on-premises database without exposing it to the public internet?
Question 2
A solutions architect is designing a storage solution for a large media company. The company needs to store video files that are accessed infrequently but must be retained for several years for compliance. Which two Azure storage options meet these requirements? (Select two.)
Question 3
A company deploys a multi-tier application using Azure virtual machines. The web tier VMs must be evenly distributed across two distinct data centers within an Azure region to avoid a single point of failure from an infrastructure outage. Which Azure construct should they use to meet this requirement?
Question 4
A company wants to enforce a set of security policies across all their Azure subscriptions. They have created several individual policy definitions. Which Azure construct should they use to group these policies together and assign them as a single package?
Question 5
A company deploys a line-of-business application on an Azure virtual machine. The IT team wants to ensure the application remains secure. According to the shared responsibility model, which of the following security tasks is the sole responsibility of the customer (the company)?
Question 6
A company develops a web API that runs on Azure App Service. The development team wants to deploy a new version of the API to a staging environment, run integration tests against it, and then gradually shift production traffic to the new version. If any issues are detected, they want to immediately roll back to the previous version without redeploying. Which Azure App Service feature should the team use to meet these requirements?
FAQ
Questions learners often ask
What does this AZ-900 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Azure Virtual Network Peering — Azure Virtual Network Peering (global peering) connects two virtual networks in different Azure regions directly over the Microsoft backbone network, providing low-latency, private communication. It incurs data transfer costs based on standard outbound data transfer rates but does not involve additional gateway costs. VPN Gateway also connects VNets but requires more configuration and incurs gateway hourly costs plus data transfer charges. ExpressRoute is for connecting on-premises networks to Azure, not for connecting two Azure VNets. Azure Front Door is a global load balancer and application delivery network, not a VNet-to-VNet connectivity solution.
What should I do if I get this AZ-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
Loading comments…
Sign in to join the discussion.