You need to ingest a data source into Next-Gen SIEM.

The correct answer is D. Data Source API key .

CrowdStrike’s Next-Gen SIEM onboarding examples for prebuilt connectors show that, for pull-style integrations, you typically provide the API key generated in the external data source so Falcon Next-Gen SIEM can connect and start ingesting data. For example, CrowdStrike’s Abnormal integration walkthrough says to enter the API key you generated , after which Falcon Next-Gen SIEM automatically connects and starts ingesting data.

Why the other options are incorrect:

A. HEC token is used for HTTP Event Collector push-style ingestion, not for a prebuilt pull connector.

B. Falcon Log Collector hostname is not the standard required credential for configuring a pull connector.

C. Falcon API URL is not the key external credential typically required by these pull connectors.

For prebuilt pull connectors, the required configuration is generally the data source’s API key or equivalent credential .