The answer is the `-RoleDefinitionId` parameter with the GUID `173a97e2-97f2-4c7a-8e7c-7e2f1c1e2f1c`. This is correct because the `Add-AzureADMSRoleAssignment` cmdlet requires the role’s unique identifier rather than its display name; the exhibit shows the Compliance Administrator role’s ObjectId, which is actually its `RoleDefinitionId` in the directory schema. On the Microsoft Cybersecurity Architect exam, this tests your ability to distinguish between user, group, and role object IDs when assigning compliance roles using PowerShell in Microsoft Entra ID—a common trap is confusing `-ObjectId` (for the user being assigned) with `-RoleDefinitionId` (for the role itself). Remember the mnemonic: “Role requires its own ID, not the user’s.”
SC-100 Practice Question: Design security operations, identity, and compliance capabilities
This SC-100 practice question tests your understanding of design security operations, identity, and compliance capabilities. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
```powershell
Get-AzureADMSRoleDefinition | Where-Object {$_.DisplayName -like "*Compliance*"} | Select-Object DisplayName, Id
DisplayName Id
---------------------------------- ------------------------------------
Compliance Administrator 173a97e2-97f2-4c7a-8e7c-7e2f1c1e2f1c
Compliance Data Administrator e9b6a4e1-1c1e-4b1e-9c1e-1e2f1c1e2f1c
```
Refer to the exhibit. You run the PowerShell command in Microsoft Entra ID to find compliance roles. You need to assign the Compliance Administrator role to a user. What is the correct parameter to use in the Add-AzureADMSRoleAssignment cmdlet?
The `Add-AzureADMSRoleAssignment` cmdlet requires the `-RoleDefinitionId` parameter to specify the role by its unique identifier (GUID). The exhibit shows that the Compliance Administrator role has the ObjectId `173a97e2-97f2-4c7a-8e7c-7e2f1c1e2f1c`, which is the role's definition ID, not a user or group object ID. Therefore, option D correctly uses `-RoleDefinitionId` with that GUID.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the `-ObjectId` parameter (which identifies the assignee) with the role's identifier, or assume a friendly `-RoleName` parameter exists, when in fact the cmdlet strictly requires the role's GUID via `-RoleDefinitionId`.
Detailed technical explanation
How to think about this question
Under the hood, `Add-AzureADMSRoleAssignment` maps to the Microsoft Graph API's `POST /roleManagement/directory/roleAssignments` endpoint, which requires the `roleDefinitionId` property in the request body. The GUID shown in the exhibit is the `roleDefinitionId` for the Compliance Administrator role, stored in the `roleDefinitions` resource. A common real-world scenario is automating role assignments in bulk scripts, where using the wrong parameter like `-ObjectId` would either fail or assign the role to an unintended principal.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-100 question in full detail.
Design security operations, identity, and compliance capabilities — This question tests Design security operations, identity, and compliance capabilities — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: -RoleDefinitionId "173a97e2-97f2-4c7a-8e7c-7e2f1c1e2f1c" — The `Add-AzureADMSRoleAssignment` cmdlet requires the `-RoleDefinitionId` parameter to specify the role by its unique identifier (GUID). The exhibit shows that the Compliance Administrator role has the ObjectId `173a97e2-97f2-4c7a-8e7c-7e2f1c1e2f1c`, which is the role's definition ID, not a user or group object ID. Therefore, option D correctly uses `-RoleDefinitionId` with that GUID.
What should I do if I get this SC-100 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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