The answer is cross-tenant access settings for B2B collaboration. This feature is correct because it allows you to configure inbound and outbound policies between two Azure AD tenants, enabling you to invite users from the acquired tenant as guest users to access SharePoint Online sites, provided those users already have accounts in their home tenant. On the MS-102 exam, this scenario tests your understanding of how to manage guest access across organizations without creating new identities, often appearing as a distractor against options like B2B direct connect or Azure AD External Identities. A common trap is confusing B2B collaboration with B2B direct connect, but remember: B2B collaboration uses guest user invitations and requires the user to have an existing account in the external tenant, while direct connect is for Teams shared channels without guest accounts. Memory tip: think “B2B collab = guest invites across tenants” for SharePoint access.
MS-102 Deploy and manage a Microsoft 365 tenant Practice Question
This MS-102 practice question tests your understanding of deploy and manage a microsoft 365 tenant. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A company recently acquired another company and needs to allow users from the acquired tenant to access its SharePoint Online sites as guest users, but only if those users already have accounts in the acquired Azure AD tenant. Which Microsoft 365 feature should be configured?
Cross-tenant access settings for B2B collaboration
Cross-tenant access settings for B2B collaboration allow you to control which external tenants can be used for guest access and fine-tune authentication.
B
B2B direct connect
Why wrong: B2B direct connect creates a two-way trust for Teams shared channels, not for SharePoint guest access.
C
Multi-Geo
Why wrong: Multi-Geo stores data in different geographic locations but does not govern cross-tenant guest access.
D
Tenant Restrictions
Why wrong: Tenant Restrictions restrict sign-in to managed networks; they are not used to enable cross-tenant collaboration.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Cross-tenant access settings for B2B collaboration
Cross-tenant access settings for B2B collaboration allow you to configure inbound and outbound access between two Azure AD tenants. By enabling B2B collaboration with the acquired tenant and setting the appropriate cross-tenant access policies, you can invite users who already have accounts in that tenant as guest users to access SharePoint Online sites. This ensures that only authenticated users from the acquired tenant are granted access, meeting the requirement.
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.
✓
Cross-tenant access settings for B2B collaboration
Why this is correct
Cross-tenant access settings for B2B collaboration allow you to control which external tenants can be used for guest access and fine-tune authentication.
Related concept
Read the scenario before looking for a memorised answer.
✗
B2B direct connect
Why it's wrong here
B2B direct connect creates a two-way trust for Teams shared channels, not for SharePoint guest access.
✗
Multi-Geo
Why it's wrong here
Multi-Geo stores data in different geographic locations but does not govern cross-tenant guest access.
✗
Tenant Restrictions
Why it's wrong here
Tenant Restrictions restrict sign-in to managed networks; they are not used to enable cross-tenant collaboration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse B2B direct connect with B2B collaboration, assuming both provide guest access to SharePoint, but B2B direct connect is limited to Teams shared channels and does not support SharePoint guest invitations.
Detailed technical explanation
How to think about this question
Cross-tenant access settings for B2B collaboration leverage the Azure AD B2B invitation redemption flow, which uses the OAuth 2.0 and OpenID Connect protocols to authenticate guest users from the external tenant. Under the hood, you configure an inbound trust policy in the resource tenant to allow invitations to users from the acquired tenant, and optionally set user and group restrictions. A real-world scenario is when a company acquires another and needs to gradually migrate users; B2B collaboration provides immediate access without requiring duplicate accounts.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-102 question in full detail.
Deploy and manage a Microsoft 365 tenant — This question tests Deploy and manage a Microsoft 365 tenant — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Cross-tenant access settings for B2B collaboration — Cross-tenant access settings for B2B collaboration allow you to configure inbound and outbound access between two Azure AD tenants. By enabling B2B collaboration with the acquired tenant and setting the appropriate cross-tenant access policies, you can invite users who already have accounts in that tenant as guest users to access SharePoint Online sites. This ensures that only authenticated users from the acquired tenant are granted access, meeting the requirement.
What should I do if I get this MS-102 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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