SC-900 Exam Dumps - Microsoft Certified: Security Compliance and Identity Fundamentals Questions and Answers

Microsoft Cloud App Security (now Microsoft Defender for Cloud Apps) is Microsoft’s CASB that “discovers and controls shadow IT,” integrates with identity and endpoint signals, and enforces data protection in SaaS and custom apps. SCI materials describe three core use cases relevant here: (1) Discovery and control of shadow IT by analyzing network logs and app usage, rating risk, and applying governance—matching A. (2) Protect sensitive information hosted anywhere in the cloud via policies such as DLP, information protection label awareness, and integration with apps through API connectors—matching C. (3) Prevent data leaks to noncompliant apps and limit access to regulated data using Conditional Access App Control and session controls that can block download, apply protections, or monitor in real time—matching E. In contrast, secure connections to Azure virtual machines are provided by Azure Bastion, not the CASB (eliminating B), and pass-through authentication to on-premises apps is delivered by Azure AD features such as Azure AD Application Proxy or PTA (not Cloud App Security), eliminating D.

Microsoft 365 Endpoint Data Loss Prevention (Endpoint DLP) extends DLP controls directly to supported desktops. Microsoft states: “Endpoint DLP extends the activity monitoring and protection capabilities of DLP to Windows 10 (and later) devices.” The platform coverage is explicitly broadened to Apple desktops: “Endpoint DLP for macOS enables the same set of DLP capabilities on macOS devices (supported versions) so you can monitor and protect sensitive items across Windows and Mac endpoints.” At the same time, Microsoft clarifies the mobile scope: “Endpoint DLP is supported on Windows and macOS devices.” This means Android is not a supported operating system for Endpoint DLP (mobile data protection on Android uses different controls such as app protection policies via Microsoft Intune and conditional access). Therefore, the correct pairing of operating systems for Endpoint DLP support is Windows 10 and newer, and macOS—not Android. This aligns with Microsoft’s Endpoint DLP platform support guidance and the intended desktop-focused endpoint protections for activities such as file copy, print, upload, and removable media interactions.

Microsoft Purview Insider Risk Management is designed to identify, investigate, and act on risky activities by internal users—for example data exfiltration, data theft, policy violations, and user sentiments/signals that may indicate insider risk. SCI documentation explains that Insider Risk policies analyze signals such as file downloads, copying to USB, sharing to personal cloud, printing, or anomalous activity following events like performance warnings or resignation notices. Because it focuses on insider behaviors, it is not used to detect external threat vectors like phishing scams; those are addressed by Microsoft Defender for Office 365 and related anti-phishing protections—hence statement 1 is No. The solution is accessed in the Microsoft Purview (formerly Microsoft 365) compliance center under Insider risk management, where admins configure policies, alerts, and workflows—so statement 2 is Yes. Finally, its core purpose includes detecting and investigating potential data leaks by disgruntled or departing employees, using built-in policy templates (e.g., Data theft by departing employee, Data leaks), making statement 3 Yes.

Microsoft describes Identity Protection as a capability that “detects risky users and risky sign-ins using real-time and offline detections and allows you to configure automated responses.” Microsoft is explicit that detections aren’t limited to after authentication; rather, signals are evaluated during sign-in and also by offline analytics, where “some detections are offline and can take up to 48 hours to appear.” Therefore, saying it only “generates risk detections once a user is authenticated” is incorrect.

For risk scoring, Microsoft states that Identity Protection “assigns a risk level to each detection,” and that “risk levels are Low, Medium, or High,” which are then used by user-risk and sign-in-risk policies to drive remediation (for example, requiring password change or MFA).

Microsoft also defines the two core risk concepts: “User risk represents the probability that a given identity or account is compromised,” while “Sign-in risk represents the probability that a given authentication request isn’t authorized by the identity owner.” These definitions underpin Conditional Access and Identity Protection policies that can require additional verification or block access based on the assessed risk.

Taken together, the documentation confirms: detections are not restricted to post-authentication (No), detections carry Low/Medium/High levels (Yes), and user risk is the probability the identity is compromised (Yes).

No

No

Yes

Microsoft states that Communication Compliance is administered in Microsoft Purview, not the Microsoft 365 admin center. The Learn article shows configuration and policy templates “in the Microsoft Purview portal” and directs admins to “configure Communication Compliance” there, confirming the management plane is the Purview compliance portal, not the M365 admin center.

Regarding supported locations, Microsoft lists the communication channels that policies can inspect: “Microsoft Teams… Exchange Online… Viva Engage… [and] Third-party sources.” SharePoint Online is not listed among supported channels, so SharePoint content isn’t monitored by Communication Compliance policies.

Finally, Communication Compliance includes built-in workflows to address findings. The Learn page explicitly provides a Remediate step: “Remediate Communication Compliance issues you investigate by using the following options:” such as “Notify the user” and “Escalate to another reviewer.” These actions demonstrate that the solution does more than detect; it supports remediation within the Purview portal workflow.

Exact extracts (selected):

“You can choose from the following policy templates in the Microsoft Purview portal.”

“Communication Compliance policies check… Microsoft Teams… Exchange Online… Viva Engage… Third-party sources.”

“Remediate Communication Compliance issues you investigate by using the following options: Notify the user… Escalate to another reviewer.”

YES YES YES

Microsoft Entra Conditional Access is explicitly described by Microsoft as a system of policies that act as if-then statements: if a user wants to access a resource, then certain controls must be satisfied. These are called Conditional Access policies, and they combine assignments and access controls to enforce organizational requirements.

Among the configurable conditions in a policy is Device platforms. The documentation explains that Conditional Access identifies the device platform (Android, iOS, Windows, macOS, Linux) from the user agent and notes that this condition is typically used with grant controls such as block access or in combination with other controls. This allows administrators to block or allow access based specifically on the operating system of the user’s device.

For scoping, the Users and groups assignment lets you include or exclude groups instead of individual users. Microsoft’s Entra groups overview states that you can create a Conditional Access policy that applies to a group, and that Entra supports both security groups and Microsoft 365 groups, while another architecture article notes that either a security group or a Microsoft 365 Group can be used in Conditional Access policies.

In Microsoft Entra ID Protection, risk-based Conditional Access policies use signals such as User risk and Sign-in risk to evaluate potential threats during authentication and identity usage. These are core to adaptive access and identity protection features taught in Microsoft’s SC-300 and SC-900 learning paths.

User risk:

Defined by Microsoft as: “The probability that a specific identity or account is compromised.”

User risk is assessed based on activities and behaviors that indicate the account may have been compromised—such as leaked credentials or atypical user activity over time.

Sign-in risk:

Defined as: “The probability that the authentication request is not performed by the legitimate identity owner.”

Sign-in risk is calculated at the time of authentication based on indicators such as unfamiliar locations, anonymous IP addresses, impossible travel, or malware-linked sign-ins.

These signals help automate access decisions, such as requiring MFA or blocking access, based on real-time risk assessments.

Microsoft’s SCI guidance defines the supported passwordless methods in Entra ID (Azure AD). The documentation states: “Microsoft recommends three passwordless authentication options: Windows Hello for Business, FIDO2 security keys, and the Microsoft Authenticator app (phone sign-in).” Windows Hello for Business “replaces passwords with strong two-factor authentication on Windows devices,” allowing users to sign in with a gesture (biometric or PIN) that does not require a password during interactive sign-in. Likewise, “FIDO2 security keys enable users to sign in using an external security key,” providing a standards-based passwordless credential that can work across supported browsers and devices.

By contrast, OATH software tokens (for example, time-based one-time passcodes in an authenticator app) are documented as multifactor verification methods: “OATH software tokens generate time-based codes used for MFA.” These OTP codes serve as a second factor and are not a passwordless primary sign-in method; users typically still enter a password and then the OTP. Therefore: software tokens → No (not passwordless), Windows Hello → Yes, FIDO2 security keys → Yes. This mapping aligns directly with Microsoft’s Entra ID passwordless authentication guidance and the delineation between passwordless sign-in and MFA second-factor methods.

Explanation

In Microsoft’s hybrid identity guidance, Azure AD Connect is the supported tool to bridge on-premises Active Directory Domain Services (AD DS) with Azure Active Directory (Azure AD). Microsoft Learn describes it plainly: “Azure AD Connect is Microsoft’s tool for connecting on-premises directories to Azure AD.” It “synchronizes user, group, and device objects” so cloud identities stay aligned with on-premises accounts and attributes. Azure AD Connect also supports multiple sign-in methods: “password hash synchronization, pass-through authentication, and federation integration.” In other words, you can sync identities and choose how users authenticate to Microsoft Entra ID (Azure AD).

By contrast, Active Directory Federation Services (AD FS) is a federation service used for claims-based authentication; it does not perform directory synchronization. Azure Sentinel (now Microsoft Sentinel) is a cloud-native SIEM/SOAR and is unrelated to identity sync. Privileged Identity Management (PIM) is an identity governance feature for just-in-time privileged access; it does not synchronize identities. Therefore, in a hybrid identity model where the requirement is to sync identities between AD DS and Azure AD, the correct Microsoft-endorsed solution is Azure AD Connect, which “keeps identities in sync between on-premises directories and Azure AD.”