Discover which Azure virtual machines in the given scenario can be encrypted using Azure Disk Encryption and a key encryption key (KEK) to meet the technical requirements.
Table of Contents
Question
Case study
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Overview
ADatum Corporation is consulting firm that has a main office in Montreal and branch offices in Seattle and New York.
Existing Environment
Azure Environment
ADatum has an Azure subscription that contains three resource groups named RG1, RG2, and RG3.
The subscription contains the storage accounts shown in the following table.
| Name | Kind | Location | Hierarchical namespace | Container | File share |
|---|---|---|---|---|---|
| storage1 | StorageV2 | West US | Yes | cont1 | share1 |
| storage2 | StorageV2 | West US | No | cont2 | share2 |
The subscription contains the virtual machines shown in the following table.
| Name | Size | Operating system | Description |
|---|---|---|---|
| VM1 | A | Red Hat Enterprise Linux (RHEL) | Uses ephemeral OS disks |
| VM2 | D | Windows Server 2022 | Has a basic volume |
| VM3 | B | Red Hat Enterprise Linux (RHEL) | Uses a standard SSDs |
| VM4 | M | Windows Server 2022 | Uses Write Accelerator disks |
| VM5 | E | Windows Server 2022 | Has a dynamic volume |
The subscription has an Azure container registry that contains the images shown in the following table.
| Name | Operating system |
|---|---|
| Image1 | Windows Server |
| Image2 | Linux |
The subscription contains the resources shown in the following table.
| Name | Description | In resource group |
|---|---|---|
| Workspace1 | Log Analytics workspace | RG1 |
| WebApp1 | Azure App Service web app | RG1 |
| VNet1 | Virtual network | RG2 |
| zone1.com | Azure Private DNS zone | RG3 |
Azure Key Vault
The subscription contains an Azure key vault named Vault1.
Vault1 contains the certificates shown in the following table.
| Name | Content type | Key type | Key size |
|---|---|---|---|
| Cert1 | PKCS#12 | RSA | 2048 |
| Cert2 | PKCS#12 | RSA | 4096 |
| Cert3 | PEM | RSA | 2048 |
| Cert4 | PEM | RSA | 4096 |
Vault1 contains the keys shown in the following table.
| Name | Type | Description |
|---|---|---|
| Key1 | RSA | Has a key size of 4096 |
| Key2 | EC | Has Elliptic curve name set to P-256 |
Microsoft Entra Environment
ADatum has a Microsoft Entra tenant named adatum.com that is linked to the Azure subscription and contains the users shown in the following table.
| Name | Microsoft Entra role | Azure role |
|---|---|---|
| Admin1 | Global Administrator | None |
| Admin2 | Attribute Definition Administrator | None |
| Admin3 | Attribute Assignment Administrator | None |
| User1 | None | Reader for RG2 and RG3 |
The tenant contains the groups shown in the following table.
| Name | Type |
|---|---|
| Group1 | Security group |
| Group2 | Microsoft 365 group |
The adatum.com tenant has a custom security attribute named Attribute1.
Planned Changes
ADatum plans to implement the following changes:
- Configure a data collection rule (DCR) named DCR1 to collect only system events that have an event ID of 4648 from VM2 and VM4.
- In storage1, create a new container named cont2 that has the following access policies:
- Three stored access policies named Stored1, Stored2, and Stored3
- A legal hold for immutable blob storage
- Whenever possible, use directories to organize storage account content.
- Grant User1 the permissions required to link Zone1 to VNet1.
- Assign Attribute1 to supported adatum.com resources.
- In storage2, create an encryption scope named Scope1.
- Deploy new containers by using Image1 or Image2.
Technical Requirements
ADatum must meet the following technical requirements:
- Use TLS for WebApp1.
- Follow the principle of least privilege.
- Grant permissions at the required scope only.
- Ensure that Scope1 is used to encrypt storage services.
- Use Azure Backup to back up cont1 and share1 as frequently as possible.
- Whenever possible, use Azure Disk Encryption and a key encryption key (KEK) to encrypt the virtual machines.
You need to configure encryption for the virtual machines. The solution must meet the technical requirements.
Which virtual machines can you encrypt?
A. VM1 and VM3
B. VM4 and VM5
C. VM2 and VM3
D. VM2 and VM4
Answer
D. VM2 and VM4
Explanation
According to the technical requirements, Azure Disk Encryption and a key encryption key (KEK) should be used to encrypt the virtual machines whenever possible.
VM1 and VM3 use Red Hat Enterprise Linux (RHEL) and cannot be encrypted using Azure Disk Encryption with KEK. Azure Disk Encryption is only supported on specific Linux distributions, and RHEL is not one of them.
VM2 and VM4 both use Windows Server 2022, which is supported by Azure Disk Encryption. Therefore, these two virtual machines can be encrypted using Azure Disk Encryption and a KEK to meet the technical requirements.
VM5 uses Windows Server 2022 as well, but it has a dynamic volume. Azure Disk Encryption is not supported on virtual machines with dynamic volumes.
In summary, only VM2 and VM4 can be encrypted using Azure Disk Encryption and a KEK while meeting the given technical requirements.
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