3.2 Develop Plans to Integrate Existing Detection Rules and Automation Use Cases from Legacy SIEM to Cortex XSIAM SECURITY-OPERATIONS-ARCHITECT Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A company is migrating its security operations to Cortex XSIAM. The legacy SIEM ingests firewall logs in a custom key-value format. The team needs to ensure these logs are usable by XSIAM detection rules. What is the most critical step in aligning this log source with XSIAM?

   • AEnsuring the firewall sends logs directly to XSIAM without any intermediate processing.
   • BConfiguring a data source integration and a parser to normalize the custom key-value format into the XSIAM data model.
   • CStoring the raw logs in a separate data lake and querying them directly from XSIAM.
   • DConverting the logs to a standard CEF format before sending them to XSIAM.
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2. 2foundation · easy

   What is a key component of knowledge transfer to operational teams after migrating detection rules to Cortex XSIAM?

   • AProviding access to the legacy SIEM for reference
   • BSharing the migration project plan
   • CRecording the vendor's sales presentation
   • DHands-on training sessions on managing and updating rules in XSIAM
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4. 3application · medium

   An organization is migrating from a legacy SIEM to Cortex XSIAM. The team has identified 150 detection rules and 30 automation use cases. Due to resource constraints, they cannot migrate everything at once. The team needs to develop a phased integration plan. Which factor should be the primary driver for prioritizing which rules and use cases to migrate first?

   • AThe ease of migration, starting with the simplest rules and use cases to build team confidence.
   • BThe preference of the individual security analysts who will be using the new system.
   • CThe risk and impact of the threats the rules and use cases are designed to detect and mitigate.
   • DThe number of data sources each rule depends on, migrating rules with fewer dependencies first.
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5. 4expert · hard

   A security operations team has migrated its detection rules and playbooks to Cortex XSIAM. The migration project is complete, and the legacy SIEM is scheduled for decommissioning in two weeks. The operational team has received some training, but the team lead is concerned about the team's ability to handle new threats and modify the migrated content. What is the most important action to ensure the team's long-term effectiveness?

   • AHire external consultants to manage the XSIAM environment permanently.
   • BEstablish a formal process for documentation, ongoing training, and knowledge sharing for the XSIAM environment.
   • CRestrict changes to the migrated rules and playbooks to prevent accidental breakage.
   • DDecommission the legacy SIEM immediately to prevent the team from reverting to old habits.
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6. 5foundation · easy

   What is the primary purpose of a validation and testing strategy for migrated detection rules in Cortex XSIAM?

   • ATo reduce the number of rules that need to be migrated
   • BTo ensure that the legacy SIEM can be decommissioned immediately
   • CTo document the migration process for auditors
   • DTo verify that the rules produce the same alerts as they did in the legacy SIEM
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