Integrating Third-Party Web Gateways with Defender for Cloud Apps

SC-300 By islever Editorial Last updated

Manage and monitor app access by using Microsoft Defender for Cloud Apps

Short answer

C Create an app registration to enable automated, low-effort data flow from Gateway1 to Microsoft Defender for Cloud Apps.

Question

You have a Microsoft 365 subscription.
You deploy a third-party web gateway named Gateway1.
You need to integrate Gateway1 with Microsoft Defender for Cloud Apps. The solution must meet the following requirements:
• Ensure that data flows automatically to Defender for Cloud Apps.
• Minimize administrative effort.
What should you do first?
  1. Add a data source.
  2. Create a snapshot report.
  3. Create an app registration. Correct Answer
  4. Add a log collector.

Key Takeaways

The trap is confusing manual data sources with automated API integrations; creating an app registration is the specific step that enables automatic, secure log streaming from third-party gateways.

This question addresses how to integrate a third-party web gateway with Microsoft Defender for Cloud Apps. The correct solution involves creating an app registration to facilitate automatic, minimal-effort data flow.

Common mistake: Option A (Add a data source) is often chosen because it sounds like the general term for importing data. However, 'adding a data source' in this context often implies manual configuration or SaaS connectors, whereas 'app registration' is the specific technical prerequisite for automated third-party gateway integration.

Expert Analysis

The core concept tested here is the method of data ingestion for Microsoft Defender for Cloud Apps (formerly Azure ATP/Cloud App Security) when using a third-party network gateway. The scenario specifies integrating a 'third-party web gateway' to ensure 'data flows automatically' while minimizing administrative effort.

Microsoft Defender for Cloud Apps supports two primary methods for cloud discovery: manual log uploads and automatic data sources. Manual uploads require periodic export and import, which contradicts the 'automatic' requirement. For automatic integration with supported third-party gateways, Defender for Cloud Apps uses an App Registration mechanism. This allows the gateway to push logs directly to the Defender service via API without requiring a local collector agent or manual intervention. Therefore, creating an app registration is the prerequisite step that enables this automated, low-effort connection.

Adding a data source (Option A) typically refers to configuring connectors for SaaS applications or setting up manual upload points, but it does not establish the secure, automated pipeline required for third-party gateway integration. Adding a log collector (Option D) usually implies deploying a local agent (like Sentinel Onboarding), which increases administrative overhead and contradicts the 'minimize administrative effort' constraint compared to the direct API integration facilitated by an app registration. Creating a snapshot report (Option B) is unrelated to data ingestion.

The key insight is distinguishing between manual data entry (Data Source) and automated, secure API-based integration (App Registration). The question's emphasis on 'automatic' flow and 'minimal effort' points directly to the modern, API-driven approach enabled by app registrations.

Exam Strategy

When a question asks for 'automatic' data flow with 'minimal administrative effort' for external services, look for solutions involving API-based integrations like App Registrations or Connectors rather than manual uploads or local agents. Prioritize options that reduce human intervention in the data pipeline.

Frequently Asked Questions

Why is 'Create an app registration' preferred over 'Add a data source'?

Creating an app registration establishes a secure OAuth2 connection for automated, real-time log streaming. 'Adding a data source' often implies manual uploads or static configurations, which do not meet the 'automatic' requirement.

Does this apply to all third-party web gateways?

It applies to gateways that support integration with Microsoft Defender for Cloud Apps via API. You must verify that Gateway1 is among the supported providers for this specific integration method.

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Community Votes

A
100%

100% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 1 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 1

  1. Tuyi 👍 1 Answered A
    Answer: A. Add a data source. Why: “Data flows automatically” means Cloud Discovery automatic log upload, not a manual one-time upload.

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