Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A company subscribes to Microsoft 365 E5, a Software-as-a-Service (SaaS) offering. The IT department is responsible for configuring user accounts and managing data in Exchange Online and SharePoint Online. According to the shared responsibility model, which security responsibility is retained by Microsoft for this SaaS deployment?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Managing user access to the applications
This is a customer responsibility, not Microsoft's. The customer controls which users have access to Microsoft 365 applications through identity management.
B
Best answer
Securing the underlying application code and platform
As a SaaS provider, Microsoft is responsible for the security of the application code, runtime environment, and underlying infrastructure. The customer does not manage the platform.
C
Distractor review
Configuring multi-factor authentication for users
Configuring authentication methods like MFA is the customer's administrative responsibility within the tenant. Microsoft provides the feature, but the customer decides policy.
D
Distractor review
Protecting data from unauthorized access by other tenants
While Microsoft ensures logical isolation between tenants, the customer is responsible for their own data governance, including classifying and protecting their data from external threats.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
Related practice questions
Related SC-900 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A company must retain all customer contracts for 10 years to comply with industry regulations. After 10 years, the contracts must be permanently deleted. Which Microsoft Purview solution should be used to automate this process?
Question 2
A company uses a cloud-based SaaS (Software as a Service) application for customer relationship management. According to the shared responsibility model, which security responsibility is primarily handled by the customer?
Question 3
A company runs a mix of on-premises servers and Azure virtual machines. They deploy Microsoft Defender for Endpoint on all servers. The security team wants to create custom queries to hunt for a specific attack pattern that involves a sequence of events across multiple machines, such as a PowerShell script being downloaded and then executed on several servers. They need to write their own detection rules based on advanced hunting data. Which Microsoft 365 Defender capability should they use?
Question 4
A company runs a consumer-facing e-commerce website and wants to allow customers to sign in using their existing social media accounts such as Google, Facebook, or LinkedIn. Which Microsoft Entra ID solution should they implement?
Question 5
A company has a hybrid identity environment with Active Directory synchronizing to Microsoft Entra ID. They want users to be able to reset their own on-premises passwords via the cloud SSPR portal. What is the minimum license required for this capability?
Question 6
A company uses a cloud-based Customer Relationship Management (CRM) system that is delivered as Software-as-a-Service (SaaS). According to the shared responsibility model, which security responsibility is primarily handled by the customer?
FAQ
Questions learners often ask
What does this SC-900 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Securing the underlying application code and platform — In the shared responsibility model for SaaS, the cloud provider (Microsoft) is responsible for the security of the physical infrastructure, the host operating system, and the application platform itself. The customer is responsible for managing their data, user identities, and client endpoints. Option B correctly identifies the security of the application code, which Microsoft maintains. Options A, C, and D are customer responsibilities.
What should I do if I get this SC-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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