Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A company uses Azure Key Vault to store secrets for their applications. They want to ensure that an application hosted on an Azure virtual machine can access secrets from only a specific Key Vault, and that all traffic between the VM and Key Vault remains within the Azure network and does not traverse the public internet. Which configuration 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
Best answer
Create a private endpoint for Key Vault in the same VNet as the VM and disable public network access on the Key Vault.
Private endpoints use private IPs from the VNet, keeping traffic off the internet. Disabling public access ensures only private endpoint traffic is accepted.
B
Distractor review
Enable the Key Vault firewall and add the VM's public IP address to the allowed list.
This allows access but traffic goes over the public internet, violating the requirement to avoid the public internet.
C
Distractor review
Use a service endpoint for Key Vault on the VM's subnet, and assign a managed identity to the VM.
Service endpoints provide connectivity over the Azure backbone without public IP, but the traffic still uses public-facing endpoints. Private endpoints are explicitly required for private connectivity.
D
Distractor review
Assign a system-assigned managed identity to the VM and grant it access to the Key Vault.
Managed identity provides authentication but does not ensure that the network path is private.
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.
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.
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Question 5
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Question 6
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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: Create a private endpoint for Key Vault in the same VNet as the VM and disable public network access on the Key Vault. — To ensure traffic between a VM and Key Vault stays within the Azure network, you can use a private endpoint for Key Vault. This places the Key Vault on a virtual network, enabling communication over the Microsoft backbone network without going over the public internet. Access restrictions via service endpoints or firewall rules can limit access to specific VNets but still use public IPs for routing unless combined with a private endpoint. Managed identity provides authentication but does not restrict network paths.
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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