Exam AZ-104 topic 3 question 71 discussion

You can't change Network Routing type if you create Premium File Shares, is just grayed out. You can change Network Routing type only if you create Premium Block Blob or Page Blobs. You can change performance of created File Share on the right side by clicking on 3 point and then choose "Change size and performance"

Correct answers https://learn.microsoft.com/en-us/azure/storage/common/network-routing-preference https://learn.microsoft.com/en-gb/azure/storage/common/infrastructure-encryption-enable?tabs=portal

Encryption type is the correct answer for the second one, your reasoning is correct, but you ,is read the question.

Minimize network cost - Default routing tier to Internet Routing seems like the correct option as per answer above. Good idea to read through the article just once: https://learn.microsoft.com/en-us/azure/storage/common/network-routing-preference

I agree with 'wasilak' about the answers. Also, the links shared by him offers the correct answers, read them carefully. "Configuring routing preference gives you the flexibility to optimize your traffic either for premium network performance or for cost." "When you configure customer-managed keys for a storage account, Azure Storage wraps the root data encryption key for the account with the customer-managed key in the associated key vault or managed HSM. The protection of the root encryption key changes, but the data in your Azure Storage account remains encrypted at all times. There is no additional action required on your part to ensure that your data remains encrypted. Protection by customer-managed keys takes effect immediately. You can switch between customer-managed keys and Microsoft-managed keys at any time."

you switch to CMK by changing the encryption type

Agree Customer-managed key (CMK) support can be limited to blob service and file service only, or to all service types. After the storage account is created, this support cannot be changed https://aka.ms/accountinfrastructureencryption