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

Azure Firewall is a managed, cloud-based network security service designed to secure traffic inside and across Azure Virtual Networks. Microsoft describes Azure Firewall as a stateful firewall that “protects Azure Virtual Network resources” by enforcing network and application rules, central logging, and threat intelligence–based filtering. Because it is deployed into a VNet/subnet (often as the hub in a hub-and-spoke), it directly governs East/West and North/South flows to workloads such as Azure virtual machines and platform services reachable through the VNet, using DNAT/SNAT and rule collections. Microsoft guidance highlights capabilities to “centrally create, enforce, and log application and network connectivity policies across subscriptions and virtual networks,” and to filter traffic for peered VNets, branch connections (VPN/ExpressRoute), and internet traffic. These capabilities explicitly map to protecting Azure virtual networks and the VMs and subnets inside them. In contrast, Azure AD users, Exchange Online inboxes, and SharePoint Online sites are SaaS/identity resources protected by Microsoft Entra controls, Exchange/SharePoint security, and Purview/Defender for Office 365—not by a VNet firewall. Therefore, the Azure Firewall–protectable resource types among the options are Azure virtual machines and Azure virtual networks.

Microsoft Purview Data Loss Prevention (DLP) is designed to prevent the inadvertent or inappropriate sharing of sensitive data across Microsoft 365 services. Microsoft’s guidance states that DLP “helps you discover, monitor, and protect sensitive items across Microsoft 365,” and that with DLP policies you can “identify, monitor, and automatically protect sensitive items in Exchange Online, SharePoint Online, OneDrive for Business, and Microsoft Teams.” This directly supports option C, because DLP can detect sensitive info in OneDrive documents and automatically apply protective actions such as blocking external sharing, restricting access, or auditing the event.

DLP also provides end-user coaching through policy tips: “Policy tips are informative notices that appear when users are working with content that contains sensitive info … to help prevent data loss.” When a user is about to send or share sensitive data in violation of policy, these tips surface in Outlook and Office apps (including when files are stored in SharePoint/OneDrive), aligning with option A.

By contrast, enabling disk encryption (e.g., BitLocker) and applying device security baselines are endpoint/device management tasks handled through Microsoft Intune or Group Policy—not by DLP. Therefore, A and C are the correct tasks you can implement with Microsoft 365 DLP policies.

Microsoft’s SCI/Learn content describes Azure AD (now Microsoft Entra ID) as a cloud service, not something you install on-premises. The docs state Azure AD is a “cloud-based identity and access management service” that “helps your employees sign in and access resources.” This clarifies the third statement (IAM service) as Yes, and the first statement (on-premises deployment) as No, because the native on-prem directory is Windows Server Active Directory, whereas Azure AD runs in Microsoft’s cloud and can be synchronized with on-prem AD via tools like Azure AD Connect.

Microsoft also explains licensing/availability: the service comes in several editions, and the free/Office 365 tier is included with many suites. The documentation explicitly notes that Azure AD is “included with subscriptions such as Microsoft 365” (formerly Office 365) and provides tenant-wide identity for those services. Therefore, stating that Azure AD is provided as part of a Microsoft 365 subscription is Yes.

In summary: Azure AD/Entra ID is a cloud identity and access management platform; it’s not deployed on-premises, and Microsoft 365 subscriptions include an Azure AD tenant/edition to manage users, groups, apps, and access policies.

Explanation

Azure AD Password Protection detects and blocks known weak passwords and their variants, and can also block additional weak terms that are specific to your organization.

With Azure AD Password Protection, default global banned password lists are automatically applied to all users in an Azure AD tenant. To support your own business and security needs, you can define entries in a custom banned password list.

In the Microsoft Purview compliance portal, administrators can tailor the user experience to match the roles and responsibilities of users in the organization. One key feature provided to enable this customization is the “Customize navigation” option.

According to Microsoft’s Security, Compliance, and Identity (SCI) learning paths and SC-series certification materials (especially SC-400 and SC-900), the Customize navigation option in the Microsoft Purview compliance portal is used to add, remove, or rearrange features in the navigation pane. This is especially useful for compliance or security administrators who want to streamline the portal for ease of use or hide sections that are not relevant to their work.

The SCI documentation states:

“The Microsoft Purview compliance portal provides a Customize navigation option that allows admins to personalize the left-hand navigation pane. This feature supports removing unused features or rearranging the order in which services appear, improving navigation efficiency and reducing clutter.”

This setting does not change permissions or access to features but purely controls the visibility and layout for users. The other listed options like Compliance Manager, Policies, and Settings are functional sections of the portal, but only " Customize navigation " is explicitly designed to manage the visual layout and visibility of the features shown in the portal ' s navigation pane.

Azure Blueprints lets you define a repeatable set of artifacts—like ARM/Bicep templates, role assignments, and Azure Policy—that you can assign to multiple subscriptions to deploy resources and guardrails consistently.

The Microsoft Service Trust Portal contains details about Microsoft ' s implementation of controls and processes that protect our cloud services and the customer data therein.

Microsoft’s identity guidance for Azure resources states there are two kinds of managed identities: system-assigned and user-assigned. The documentation describes that a system-assigned identity is scoped to a single resource and follows its lifecycle: “A system-assigned managed identity is created in Microsoft Entra ID and is tied to the lifecycle of that Azure service instance. When the resource is deleted, Azure automatically deletes the identity.” By contrast, a user-assigned identity is reusable across resources: “A user-assigned managed identity is a standalone Azure resource… It can be assigned to one or more Azure service instances and is managed independently of the resources that use it.”

Because the scenario requires multiple Azure web apps to use the same identity, the only managed identity type that supports this sharing model is the user-assigned managed identity. This allows you to grant RBAC permissions once to the identity and then attach that same identity to several App Service instances, simplifying secretless access to Azure resources (Key Vault, Storage, SQL, etc.) and providing centralized lifecycle and rotation management. Certificates or generic service principals would reintroduce credential management, while a system-assigned identity cannot be shared across multiple apps. Therefore, a user-assigned managed identity is the correct choice.