AZ-900 Describe Azure architecture and services Practice Question
This AZ-900 practice question tests your understanding of describe azure architecture and services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Which Azure service provides a managed graph API and storage solution for Microsoft 365 data, including users, groups, and calendar events?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Microsoft Graph
Microsoft Graph is the correct answer because it provides a unified REST API and managed storage solution that enables access to Microsoft 365 data, including users, groups, calendar events, and other resources. It acts as the single endpoint (https://graph.microsoft.com) for interacting with Microsoft 365 services, replacing older APIs like Azure AD Graph.
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.
✗
Azure Cosmos DB for Graph
Why it's wrong here
Cosmos DB for Graph is a general-purpose graph database; Microsoft Graph provides access to Microsoft 365 data.
✗
Azure Active Directory Graph API
Why it's wrong here
The older Azure AD Graph API is deprecated; Microsoft Graph is the unified successor.
✓
Microsoft Graph
Why this is correct
Microsoft Graph is the unified API for accessing Microsoft 365 data (emails, users, calendars, files) through a single endpoint.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure API Management
Why it's wrong here
API Management is a gateway for managing APIs; Microsoft Graph is the specific Microsoft 365 data API.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Azure Cosmos DB for Graph (a graph database) with Microsoft Graph (the unified API for Microsoft 365), or mistakenly think the deprecated Azure AD Graph API is still the correct service for accessing modern Microsoft 365 data.
Detailed technical explanation
How to think about this question
Microsoft Graph uses the OData v4 protocol and exposes a single endpoint that unifies data from Azure AD, Exchange Online, SharePoint Online, OneDrive, and other Microsoft 365 services. It supports both delegated and application permissions via OAuth 2.0, and allows querying relationships between entities (e.g., a user's calendar events) using navigation properties. In real-world scenarios, developers use Microsoft Graph to build applications that automate user provisioning, read calendar availability, or manage group membership without needing separate APIs for each service.
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 AZ-900 question in full detail.
Describe Azure architecture and services — This question tests Describe Azure architecture and services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Microsoft Graph — Microsoft Graph is the correct answer because it provides a unified REST API and managed storage solution that enables access to Microsoft 365 data, including users, groups, calendar events, and other resources. It acts as the single endpoint (https://graph.microsoft.com) for interacting with Microsoft 365 services, replacing older APIs like Azure AD Graph.
What should I do if I get this AZ-900 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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Question Discussion
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