SC-900 Exam Dumps - Microsoft Security Compliance and Identity Fundamentals

In Microsoft’s Security, Compliance, and Identity learning content for Microsoft Defender for Cloud, the service is described as providing ongoing posture management and threat protection. The official description states that Defender for Cloud “continuously assesses your resources to identify security misconfigurations and weaknesses” and “continuously discovers and evaluates resources” across your subscriptions. The recommendations and secure-score updates are produced as the platform “continuously analyzes your environment using security policies and analytics,” surfacing issues the moment they’re detected and mapping them to remediation guidance. This continuous assessment model underpins Defender for Cloud’s cloud security posture management (CSPM) capability and ensures that newly created or modified resources are evaluated without waiting for a scheduled job. By design, there is no fixed interval (such as hourly, every 15 minutes, or daily) required to trigger assessments—policy-driven evaluation and data collection run as changes occur and signals are received. Therefore, the sentence “Microsoft Defender for Cloud assesses Azure resources ____ for security issues” is correctly completed with continuously, reflecting Microsoft’s emphasis on persistent, real-time security posture evaluation rather than periodic scans.

In Microsoft’s hybrid identity model, organizations keep their authoritative identities in Active Directory Domain Services (AD DS) and surface those identities in Microsoft Entra ID (Azure AD). Microsoft guidance explains that hybrid identity is implemented by synchronizing on-premises directory objects (users, groups, and selected attributes) into Azure AD using Azure AD Connect or Cloud Sync. Azure AD Connect is explicitly documented as the Microsoft tool that establishes and maintains synchronization between AD DS and Azure AD and is therefore used to implement hybrid identity—hence statement 1 is Yes. Hybrid identity does not require two Microsoft 365 tenants; the standard design is one Azure AD tenant connected to one or more on-premises AD forests, so statement 2 is No. For users to authenticate to Microsoft cloud resources with their on-premises identity, Azure AD must have a corresponding cloud identity object, which is achieved by directory synchronization; sign-in can then be handled by cloud authentication (Password Hash Synchronization or Pass-through Authentication) or by federation (e.g., AD FS). Because these sign-in options depend on synchronized identities being present in Azure AD, statement 3 is Yes. This aligns with SCI guidance that hybrid identity = synchronized identities + a chosen authentication method (PHS/PTA or federation).

Microsoft Entra Access Reviews are designed to help organizations regularly validate and right-size access. Microsoft’s documentation explains that access reviews can target group memberships, enterprise app assignments, Azure AD roles, and Azure resource roles (via Privileged Identity Management), allowing reviewers to assess whether users, service principals, or groups should retain access to Azure resources—confirming the first statement. Access Reviews support automation: you can configure a review to “Auto-apply results”, so when the review ends, users who were denied or not reviewed are automatically removed from the group, application assignment, or role—validating the second statement. Finally, Access Reviews are a Premium P2 capability (now Microsoft Entra ID P2) alongside PIM and advanced identity governance. They are not included in all service plans; tenants require the appropriate P2 licenses for reviewers and users in scope—therefore the third statement is No.

In Azure networking, each Network Security Group (NSG) is created with a built-in set of default security rules. Microsoft’s documentation for NSGs explains: “Azure creates several default security rules within each network security group. You can’t remove the default security rules, but you can override them by creating rules with a higher priority.” The rule processing model is priority-based: “Security rules are processed in priority order, with lower numbers processed before higher numbers. Once a rule matches traffic, processing stops.” Because the defaults have relatively low precedence (high priority numbers), an administrator can create an explicit allow or deny rule with a lower priority number to supersede the default behavior.

This is why the correct completion is override rather than copy or delete. You cannot delete the default rules; they remain present to provide baseline behavior (such as denying inbound traffic from the internet by default and allowing virtual network traffic). Instead, you override the defaults by adding your own NSG rules—using lower priority numbers—to achieve the desired access control outcome while preserving Azure’s baseline protections and evaluation logic.

 An external email address can be used to authenticate self-service password reset (SSPR). → Yes

 A notification to the Microsoft Authenticator app can be used to authenticate self-service password reset (SSPR). → Yes

 To perform self-service password reset (SSPR), a user must already be signed in and authenticated to Azure AD. → No

For Microsoft Entra self-service password reset (SSPR), users must register one or more authentication methods that can later be used when they forget their password or are locked out. Microsoft’s end-user guidance states that an email address option lets users configure “an alternate email address that can be used without requiring your forgotten or missing password,” and that this method is available only for password reset. In practice, this alternate address is typically a personal or external email (for example, Gmail), so using an external email to authenticate SSPR is valid.

SSPR can also use the Microsoft Authenticator app as an authentication method. Microsoft documents that Authenticator push notifications, including number matching, are supported for several scenarios, explicitly listing self-service password reset (SSPR) among them. This means a push notification to the app on the user’s device can be used to verify identity during SSPR.

Finally, SSPR is designed for situations where the user cannot sign in. Official SSPR process descriptions explain that users start from the “Can’t access your account?” or password-reset page, provide their username, and then use their registered methods to prove identity. They do not need to be already authenticated to Azure AD; SSPR exists precisely to recover access when sign-in fails.

In Microsoft Sentinel, playbooks are the feature that integrates with Azure Logic Apps to automate response. Microsoft’s documentation describes them as “collections of procedures that can be run from Microsoft Sentinel in response to an alert” and clarifies that “playbooks are built on Azure Logic Apps” providing a workflow engine and a gallery of connectors to other Microsoft and third-party services. Playbooks can be triggered automatically from analytics rules or manually from incidents and alerts, enabling orchestration such as assigning owners, creating tickets, disabling accounts, blocking IPs, or posting to collaboration channels. The platform emphasizes that the Logic Apps foundation gives security teams a visual designer, managed connectors, and run history to track execution and outcomes. In short, Sentinel uses playbooks to “automate and orchestrate responses to alerts and incidents”, reducing mean-time-to-respond and standardizing actions across your SOC. Other Sentinel components serve different purposes: analytic rules detect threats, hunting queries aid proactive investigation, and workbooks provide dashboards and visualizations. Therefore, the correct completion is: Microsoft Sentinel playbooks use Azure Logic Apps to automate and orchestrate responses to alerts.

Microsoft Purview Compliance Manager organizes improvement actions into control action subcategories that mirror core security control types used throughout Microsoft Learn’s SCI content: preventative, detective, and corrective. In the SC-900 security fundamentals guidance, Microsoft describes these control types as follows: “Preventive controls are intended to deter or stop an attack from occurring (for example, encryption and access controls). Detective controls are used to discover and detect attacks that are in progress or have occurred (for example, logging, auditing, and monitoring). Corrective controls are used to limit the damage caused by an incident and to return systems to normal operations (for example, configuration changes, incident response, and recovery activities).”

Applying those definitions to Compliance Manager actions: Encrypt data at rest is a preventative control because it deters exposure by protecting data before an event. Perform a system access audit is a detective action because auditing and reviewing access logs are used to discover and detect misuse or anomalies. Make configuration changes in response to a security incident is a corrective action because it remediates and restores the environment after detection, aligning with Compliance Manager’s corrective action guidance. These mappings reflect how Compliance Manager measures completion of improvement actions that reduce compliance risk through the right mix of preventative, detective, and corrective controls.

Microsoft Purview Data Loss Prevention (DLP) defines supported service locations for policy enforcement. The Microsoft Learn/SCI materials state that DLP policies “help protect sensitive information across Microsoft 365 services” and can be scoped to common workloads. In the DLP overview, Microsoft explicitly lists the core cloud locations: “You can create DLP policies that protect content in Exchange Online, SharePoint Online, and OneDrive for Business.” The Teams workload is also included: “DLP can monitor and take protective actions on Microsoft Teams chat and channel messages.” These statements confirm that applying a DLP policy to Exchange Online email (A), OneDrive accounts (B), and Teams chat and channel messages (D) is supported.

By contrast, Exchange Online public folders (C) are not listed among supported DLP locations in the SCI documentation, and Viva Engage (formerly Yammer) (E) is not a standard Microsoft Purview DLP location in the core list above (Viva Engage has separate governance and communication compliance controls). Therefore, from the supported locations enumerated in Microsoft’s DLP guidance, the correct answers are Exchange Online email, OneDrive accounts, and Teams chat and channel messages.