The answer is that the script failed because it did not run in a Teams PowerShell session that supports the Set-CsTenantFederationConfiguration cmdlet. This cmdlet is only available in a remote Teams PowerShell session established via Connect-MicrosoftTeams, not in a local or legacy Skype for Business Online Connector session. Without the correct session context, the cmdlet cannot execute, leaving the default federation settings in place and blocking communication with 'trusted.com'. On the MD-102 exam, this tests your understanding of PowerShell session requirements for Teams administration—a common trap is assuming any Microsoft 365 PowerShell module can run all cmdlets. Remember that tenant-level federation configuration cmdlets like Set-CsTenantFederationConfiguration are exclusive to the Teams PowerShell module, not the older Skype for Business Online module. Memory tip: “Teams cmdlets need Teams sessions—no legacy shortcuts.”
MD-102 Manage identity and compliance Practice Question
This MD-102 practice question tests your understanding of manage identity and compliance. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
```
$session = New-CsOnlineSession -Verbose
Import-PSSession $session
Set-CsTenantFederationConfiguration -Identity Global -AllowFederatedUsers $true
Set-CsTenantFederationConfiguration -Identity Global -AllowPublicUsers $false
Set-CsTenantFederationConfiguration -Identity Global -BlockedDomains @{Add="suspicious.com"}
Set-CsTenantFederationConfiguration -Identity Global -AllowedDomains @{Add="trusted.com"}
Remove-CsOnlineSession $session
```
You are a Teams administrator. After running the PowerShell script shown in the exhibit, users report they cannot communicate with federated users from 'trusted.com'. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Refer to the exhibit.
```
$session = New-CsOnlineSession -Verbose
Import-PSSession $session
Set-CsTenantFederationConfiguration -Identity Global -AllowFederatedUsers $true
Set-CsTenantFederationConfiguration -Identity Global -AllowPublicUsers $false
Set-CsTenantFederationConfiguration -Identity Global -BlockedDomains @{Add="suspicious.com"}
Set-CsTenantFederationConfiguration -Identity Global -AllowedDomains @{Add="trusted.com"}
Remove-CsOnlineSession $session
```
A
The AllowedDomains list does not include a wildcard ' * ' to allow all domains, so only trusted.com is allowed.
Why wrong: If only trusted.com is allowed, users should be able to communicate with that domain. The problem states they cannot, so this is not the cause.
B
The script sets AllowPublicUsers to $false, which blocks all external communication including federated users.
Why wrong: AllowPublicUsers controls public Skype users, not federated domains.
C
The script sets AllowFederatedUsers to $true, which disables federated user communication.
Why wrong: Setting AllowFederatedUsers to $true enables federation, not disables it.
D
The script did not run in a Teams PowerShell session that supports the Set-CsTenantFederationConfiguration cmdlet.
The New-CsOnlineSession and Import-PSSession sequence is correct, but if the module is not properly loaded or the session is not created with the right endpoint, the cmdlets may not be available, causing the script to have no effect.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The script did not run in a Teams PowerShell session that supports the Set-CsTenantFederationConfiguration cmdlet.
Option D is correct because the `Set-CsTenantFederationConfiguration` cmdlet is only available in a remote Teams PowerShell session (connected via `Connect-MicrosoftTeams`), not in a local Skype for Business Online or legacy PowerShell module. If the script was run in an incompatible session (e.g., an older Skype for Business Online Connector or a local PowerShell window without proper module import), the cmdlet would not execute, leaving the federation configuration unchanged. This would cause the default settings to block federated communication with 'trusted.com'.
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.
✗
The AllowedDomains list does not include a wildcard ' * ' to allow all domains, so only trusted.com is allowed.
Why it's wrong here
If only trusted.com is allowed, users should be able to communicate with that domain. The problem states they cannot, so this is not the cause.
✗
The script sets AllowPublicUsers to $false, which blocks all external communication including federated users.
Why it's wrong here
AllowPublicUsers controls public Skype users, not federated domains.
✗
The script sets AllowFederatedUsers to $true, which disables federated user communication.
Why it's wrong here
Setting AllowFederatedUsers to $true enables federation, not disables it.
✓
The script did not run in a Teams PowerShell session that supports the Set-CsTenantFederationConfiguration cmdlet.
Why this is correct
The New-CsOnlineSession and Import-PSSession sequence is correct, but if the module is not properly loaded or the session is not created with the right endpoint, the cmdlets may not be available, causing the script to have no effect.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
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 focus on the federation settings (AllowedDomains, AllowFederatedUsers) and overlook the critical prerequisite of running the cmdlet in the correct PowerShell session, assuming any PowerShell window can execute Teams cmdlets.
Detailed technical explanation
How to think about this question
The `Set-CsTenantFederationConfiguration` cmdlet is part of the Teams PowerShell module (MicrosoftTeams) and requires a remote session to the Teams service. Under the hood, it modifies the tenant's federation policy in Azure AD and the Teams backend, which controls SIP-level federation using the Session Initiation Protocol (SIP) and the Microsoft Federation Gateway. A real-world scenario is when an administrator runs a script locally without first importing the Teams module or connecting via `Connect-MicrosoftTeams`, causing the cmdlet to fail silently or throw an error, leaving federation settings at their default (which blocks all federated domains).
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MD-102 question in full detail.
Manage identity and compliance — This question tests Manage identity and compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The script did not run in a Teams PowerShell session that supports the Set-CsTenantFederationConfiguration cmdlet. — Option D is correct because the `Set-CsTenantFederationConfiguration` cmdlet is only available in a remote Teams PowerShell session (connected via `Connect-MicrosoftTeams`), not in a local Skype for Business Online or legacy PowerShell module. If the script was run in an incompatible session (e.g., an older Skype for Business Online Connector or a local PowerShell window without proper module import), the cmdlet would not execute, leaving the federation configuration unchanged. This would cause the default settings to block federated communication with 'trusted.com'.
What should I do if I get this MD-102 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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