Question 1

You are designing an application hosted on an Azure Virtual Machine Scale Set (VMSS) that scales dynamically between 5 and 50 instances based on CPU load.

The application needs to authenticate to an Azure SQL Database and an Azure Key Vault. You want to use Managed Identities to avoid storing credentials in code.

Which type of managed identity should you recommend to minimize administrative overhead and ensure seamless scaling?

Accepted Answer

Consider the lifecycle of the identity. If the compute resource scales out (creates new instances), a system-assigned identity creates a new identity per instance. A user-assigned identity is shared.

Question 2

What mistakes do candidates make on this AZ-305 question?

Accepted Answer

Choosing System-assigned. People often default to system-assigned because it's easier for a single VM, but it fails in auto-scaling scenarios.

How to approach this question

Full Answer

Common mistakes

Practice the full Azure Solutions Architect Expert AZ-305 Practice Exam 5

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