mediumMultiple ChoiceObjective-mapped
DP-203 Practice Question: Refer to the exhibit
Exhibit
Refer to the exhibit.
{
"RoleName": "CustomStorageReader",
"Actions": [
"Microsoft.Storage/storageAccounts/blobServices/containers/read"
],
"NotActions": [],
"AssignableScopes": [
"/subscriptions/12345678-1234-1234-1234-123456789abc/resourceGroups/DataRG"
]
}Refer to the exhibit. A custom RBAC role is defined as shown. A user is assigned this role at the resource group scope. Which operation can the user perform?
⚠ Common exam trap
It's easy for candidates to confuse control plane container listing permissions with data plane blob read permissions, assuming that 'read' on containers implies access to blob content, whereas Azure RBAC strictly separates these scopes.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
List containers in a storage account within DataRG
The custom RBAC role includes the 'Microsoft.Storage/storageAccounts/blobServices/containers/read' action, which allows listing containers. Since the user is assigned this role at the resource group scope (DataRG), they can list containers in any storage account within that resource group. The role does not include any data plane actions (e.g., read/write/delete blob data) or container deletion permissions, so only the list operation is permitted.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Delete containers
Why it's wrong here
Deleting containers requires 'Microsoft.Storage/storageAccounts/blobServices/containers/delete'.
- ✗
Write blob data to containers
Why it's wrong here
Writing requires 'Microsoft.Storage/storageAccounts/blobServices/containers/blobs/write'.
- ✓
List containers in a storage account within DataRG
Why this is correct
The action permits reading container properties and listing containers.
- ✗
Read blob data from containers
Why it's wrong here
Reading blob data requires 'Microsoft.Storage/storageAccounts/blobServices/containers/blobs/read'.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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