AZ-104 Question 143
Select 2You have a Windows Server 2019 VM named 'SalesAppVM' running on a Standard DS2_v2 size in the East US region. The VM frequently runs out of memory, causing performance issues. You decide to resize it to a Standard E2s_v3 size to gain additional memory. Which of the following statements are correct regarding the resizing process?
- A
You can resize the VM to a larger size in the same VM family (DS_v2) without incurring any downtime
- B
You must stop (deallocate) the VM before resizing it from DS-series to E-series
- C
If your subscription does not currently allow E-series VMs, you need to request a quota increase first
- D
You can switch from Standard tier to Basic tier VM sizes by simply selecting the Basic size in the Azure portal
Show answer and explanation
Correct answers: B, C
Explanation
When resizing from one VM family to another (for example, DS-series to E-series), you typically need to stop and deallocate the VM first. Additionally, you must ensure your subscription has sufficient quota for the new size. Although you can resize a VM within a certain family relatively easily, it usually still causes some downtime, and moving to Basic tier VMs involves more than just a simple size change in the portal.
- A. Incorrect.
Even when resizing to a different size within the same VM family, the VM typically needs to be at least restarted (downtime). Therefore, it is incorrect to say there is no downtime at all.
- B. Correct.
Switching to a different VM family almost always requires stopping (deallocating) the VM beforehand so that Azure can place it on suitable hardware for the new series.
- C. Correct.
Some VM families might not be available under your default subscription limits. You may have to open a support request or increase your quota for the E-series.
- D. Incorrect.
Switching directly from a Standard tier to a Basic tier VM is not a simple operation. Basic tier VMs have fewer features and different hardware configurations, so it is not correct to say you can just pick a Basic size in the portal without further considerations.