Reference:
https://docs.microsoft.com/en-us/microsoft-365/compliance/get-started-core-ediscovery?view=o365-worldwide

To on-board Azure Sentinel, you first need to connect to your security sources. Azure Sentinel comes with a number of connectors for Microsoft solutions, including Microsoft 365 Defender solutions, and Microsoft 365 sources, including Office 365, Azure AD, Microsoft Defender for Identity, and Microsoft Cloud App Security, etc.

Section: Describe the Concepts of Security, Compliance, and Identity

Explanation
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Box 1: Yes
Box 2: Yes
Box 3: No
The Zero Trust model does not assume that everything behind the corporate firewall is safe, the Zero Trust model assumes breach and verifies each request as though it originated from an uncontrolled network.

Explanation
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Box 1: Yes
Azure Defender provides security alerts and advanced threat protection for virtual machines, SQL databases, containers, web applications, your network, your storage, and more Box 2: Yes Cloud security posture management (CSPM) is available for free to all Azure users.
Box 3: Yes
Azure Security Center is a unified infrastructure security management system that strengthens the security posture of your data centers, and provides advanced threat protection across your hybrid workloads in the cloud - whether they're in Azure or not - as well as on premises.