Microsoft Updated SC-900 Exam Questions and Answers by arjun

Microsoft’s SCI learning content describes the Microsoft 365 Defender portal as a unified security operations experience that surfaces security posture and active threats on a card-based dashboard. In the overview of the portal, Microsoft explains that the home page “presents key security information in dashboard cards,” and that among these cards are summaries that highlight risky entities such as “Users at risk” and “Devices at risk.” These cards provide quick, actionable visibility for analysts by aggregating detections and exposure data across Microsoft Defender services (for identities and endpoints). The guidance emphasizes that the portal “correlates signals across identities, endpoints, email, and applications” and that security teams can use the dashboard cards to pivot directly into incidents and investigations from “Users at risk” or “Devices at risk” to take containment or remediation actions.

By contrast, Compliance Score is part of Microsoft Purview Compliance Manager, not the Microsoft 365 Defender portal; Service Health and User Management are functions of the Microsoft 365 admin center. Therefore, the cards you’ll find on the Microsoft 365 Defender portal that match the choices provided are Users at risk and Devices at risk.

Security Center

Microsoft Entra ID (formerly Azure Active Directory) is a cloud-based directory and identity platform. In Microsoft’s SCI materials, Entra ID is described as “Microsoft’s cloud-based identity and access management service that helps your employees sign in and access resources,” underscoring that it’s not deployed on-premises; instead, organizations can synchronize or federate with on-premises Active Directory using tools like Entra Connect. The same documentation explains that Entra ID is included with Microsoft 365 subscriptions, providing tenant identity services for apps such as Exchange Online, SharePoint Online, and Teams. Core capabilities listed include authentication, single sign-on (SSO), Conditional Access, device registration, and application access management, all of which classify Entra ID as an identity and access management (IAM) service. Thus: (1) on-premises deployment — No (it’s cloud-native), (2) provided with Microsoft 365 — Yes (a directory is created for each tenant), and (3) IAM service — Yes (it delivers identity, access, and governance controls used across Microsoft cloud services).

 Security defaults require an Azure Active Directory (Azure AD) Premium license. No

 Security defaults can be enabled for a single Azure Active Directory (Azure AD) user. No

 When Security defaults are enabled, all administrators must use multi-factor authentication (MFA). Yes

Microsoft explains that Security defaults are baseline identity protections that are “available to all tenants at no additional cost” and are intended to “help protect your organization from common identity-related attacks.” They are a tenant-wide setting: Microsoft states that security defaults are “either on or off for the entire tenant” and “can’t be customized or targeted to specific users or groups.” If you require per-user or granular targeting, Microsoft directs customers to use Conditional Access policies instead.

A core behavior of security defaults is enforcing MFA: “All users are required to register for Azure AD Multi-Factor Authentication,” and “administrators are required to perform MFA.” In addition, security defaults “block legacy authentication” and apply other baseline requirements, but they do not enable premium features such as Azure AD Identity Protection or PIM. Summarizing the implications for the statements: no premium license is required; you cannot enable security defaults for just one user because the control is global; and when enabled, administrators must use MFA, with Microsoft recommending exclusion only for a break-glass account if necessary.