AZ-700 Question 24
Select 3You manage an Azure environment that includes a production VM with a Basic SKU public IP address assigned to its network interface. The application team wants to use advanced networking features that are only available with a Standard SKU public IP, and you must upgrade from Basic to Standard while preserving the same IP address and minimizing downtime. Which three of the following steps must you take to successfully upgrade the existing Basic SKU public IP to a Standard SKU?
- A
Directly change the SKU from Basic to Standard in the Azure portal without removing any associations.
- B
Disassociate the public IP address from the VM or any load balancer before you perform the SKU upgrade.
- C
Use Azure CLI or PowerShell to upgrade the SKU to Standard after the public IP address is disassociated.
- D
Reassociate the upgraded public IP address with the original VM or load balancer once the upgrade is complete.
- E
Delete the existing Basic SKU public IP resource and create a new Standard SKU public IP with the same address.
Show answer and explanation
Correct answers: B, C, D
Explanation
To upgrade a Basic SKU public IP to Standard SKU without losing the IP or causing extended downtime, you must first disassociate the IP from any resources (VM, load balancer), then use Azure CLI or PowerShell (for example, the 'az network public-ip update' command) to change the SKU to Standard, and finally reassociate the upgraded IP with the resources. This process preserves the IP address and enables Standard SKU features, as documented in the Microsoft Azure public IP address upgrade guidance.
- A. Incorrect.
Option 1 is incorrect. You cannot upgrade the SKU while the public IP is still associated. The upgrade process requires disassociation first.
- B. Correct.
Option 2 is correct. Disassociating the IP from the VM or load balancer is a required step to free the IP for SKU updates.
- C. Correct.
Option 3 is correct. Once disassociated, you can run the appropriate Azure CLI or PowerShell command to upgrade the public IP from Basic to Standard.
- D. Correct.
Option 4 is correct. After upgrading to Standard SKU, you must reassociate it to the VM or the load balancer to restore connectivity using the same IP address.
- E. Incorrect.
Option 5 is incorrect. Deleting the Basic SKU public IP resource does not guarantee you can use the same IP address again, and it could lead to unnecessary downtime and IP loss.