During a Microsoft 365 planning workshop, provide business-class email, calendars, contacts, and mailboxes. Microsoft 365 app or service is the best fit?
Exchange Online provides hosted email, calendar, contacts, and mailbox services.
Why this answer
Exchange Online is the correct choice because it is Microsoft's cloud-hosted messaging platform that provides business-class email, shared calendars, contact management, and mailbox services. It is the core service within Microsoft 365 designed specifically for these communication and collaboration needs, supporting features like shared mailboxes, resource mailboxes, and calendar sharing via Exchange Web Services (EWS) and MAPI over HTTP.
Exam trap
The trap here is that candidates may confuse Microsoft Purview Audit (a compliance tool) with Exchange Online's mailbox auditing or confuse Planner or Forms as capable of handling email and calendar functions, when in fact only Exchange Online provides the core messaging infrastructure.
How to eliminate wrong answers
Option B (Microsoft Purview Audit) is wrong because it is a compliance and auditing solution that logs user and admin activities across Microsoft 365 services; it does not provide email, calendar, or mailbox functionality. Option C (Microsoft Forms) is wrong because it is a survey and quiz creation tool that collects responses via web forms; it lacks any email hosting, calendar, or contact management capabilities. Option D (Microsoft Planner) is wrong because it is a task management and project planning application integrated with Microsoft Teams and SharePoint; it does not handle email, calendars, or mailboxes.