MS-900 Describe Microsoft 365 apps and services Practice Question
Which TWO Microsoft 365 apps include AI-powered features that can summarize email threads and documents? (Select two.)
⚠ Common exam trap
The MS-900 exam often tests the misconception that all Office apps have the same AI capabilities, leading candidates to select Excel or PowerPoint because they assume 'AI' means any smart feature, but the question specifically requires summarization of email threads and documents.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Microsoft Outlook
Microsoft Outlook (A) is correct because its AI-powered features, such as Microsoft Copilot in Outlook, can summarize long email threads and generate concise recaps directly within the mailbox. Microsoft Word (E) is correct because Copilot in Word can summarize lengthy documents, producing key points and overviews of the file's content. Excel (B) focuses on data analysis, formulas, and spreadsheet insights rather than email or document summarization, so it does not fit. OneNote (C) is a note-taking app and does not provide the specified email-thread and document summarization features. PowerPoint (D) is designed for creating and summarizing presentations, not email threads or general documents, so it is not one of the two correct answers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Microsoft Outlook
Why this is correct
Outlook Copilot uses natural language processing to summarize email threads, condensing lengthy conversations into key points, action items, and pending decisions directly within the app. This native AI-powered summarization of existing textual content is exactly what the question asks for, making Outlook a correct choice.
- ✗
Microsoft Excel
Why it's wrong here
Excel Copilot is designed for structured data analysis, enabling users to generate formulas, create charts, and identify trends in tabular datasets. It does not summarize unstructured prose or existing documents, as its core focus is numerical and logical manipulation rather than text condensation. Therefore, despite being AI-powered, Excel lacks the summarization capability required.
- ✗
Microsoft OneNote
Why it's wrong here
OneNote Copilot assists with note-taking by helping users create, organize, and retrieve notes, often generating meeting summaries or to-do lists from scratch. However, it does not summarize pre-existing documents or long-form content already stored in a workspace, as its primary function is facilitating notes rather than condensing existing text. Thus, it fails to meet the summarization requirement.
- ✗
Microsoft PowerPoint
Why it's wrong here
PowerPoint Copilot helps users create presentations by generating slides, layouts, and speaker notes from prompts or external files, but it does not summarize existing textual content in a document sense. Its AI is oriented toward producing new presentation materials, not condensing provided prose into a summary, so it is not an app with AI-powered summarization of existing text.
- ✓
Microsoft Word
Why this is correct
Microsoft Word is a correct choice as it directly satisfies the requirement for an app with AI-powered document summarisation. Integrated with Microsoft Copilot, Word leverages advanced language models to generate concise summaries of lengthy documents. This feature significantly enhances productivity by allowing users to quickly grasp the essence of extensive content without leaving the application, fulfilling the specified capability.
Go deeper
Related to this question
Learn chapter
M365 Data Portability and Export
Key term
Microsoft 365
Microsoft 365 is a subscription-based cloud service from Microsoft that combines productivity tools like Office apps with security, device management, and online storage.
Key term
Outlook
Microsoft Outlook is an email, calendar, and contact management application that is part of the Microsoft 365 suite, used by businesses and individuals to organize communications and schedules.
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