A company is evaluating its existing network infrastructure for XSIAM deployment. They currently use a mix of Cisco ASA firewalls, Palo Alto Networks Next-Generation Firewalls (NGFWs), and various third-party network devices. To maximize XSIAM's Network Detection and Response (NDR) capabilities, what specific types of data should the team prioritize for ingestion from these network devices, and what considerations are paramount for efficient data collection?

• A.Only firewall logs (traffic, threat, URL filtering) from Palo Alto Networks NGFWs are required. Efficient collection requires enabling only critical security logs.
• B.NetFlow/lPFlX records, DNS query logs, DHCP logs, and proxy logs are crucial from all network devices. Consideration for efficient collection is to use syslog forwarding from all devices directly to XSIAM cloud collectors.
• C.SNMP traps for device status and configuration changes are paramount. Efficient collection involves polling devices every 5 minutes via SNMP.
• D.Detailed packet captures (PCAP) from network taps are essential for all traffic. Efficient collection requires deploying high-capacity storage appliances on- premise.
• E.Authentication logs from RADIUS/TACACS+ servers and VPN connection logs. Efficient collection is achieved by integrating XSIAM with the authentication servers via LDAP.

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An XSIAM deployment is experiencing high ingestion rates, leading to increased costs and slower query performance. Analysis reveals that a significant portion of ingested logs, while voluminous, contributes little to high-fidelity detections for critical security use cases. The security team wants to optimize content ingestion to focus on high-value dat a. Which XSIAM content optimization strategy should be prioritized?

• A.Increase the data retention period for all ingested logs to ensure historical analysis is always possible.
• B.Implement data filtering at the ingestion point (e.g., via Cortex Data Lake or brokers) to only forward specific event types and fields required by existing detection rules and critical analytics.
• C.Purchase additional XSIAM compute resources to handle the increased data volume more efficiently.
• D.Disable all correlation rules and rely solely on raw log searches for incident investigation.
• E.Migrate all security logs to a separate, cheaper storage solution and only send alerts to XSIAM.

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A systems engineer overseeing the integration of data from various sources through data pipelines into Cortex XSIAM notices modifications occurring during the ingestion process, and these modifications reduce the accuracy of threat detection and response. The engineer needs to assess the risks associated with the pre-ingestion data modifications and develop effective solutions for data integrity and system efficacy.
Which set of steps must be followed to meet these goals?

• A.Develop an advanced monitoring system to track and log all changes made to data during ingestion, and use analytics to compare pre- and post-ingestion states based on XDM to identify and mitigate discrepancies.
• B.Design a hybrid approach for critical data fields to be safeguarded against modifications during ingestion, while less critical data fields undergo allowable modifications that are rectified post- ingestion by using XDM to balance performance with data integrity.
• C.Implement a pre-ingestion data validation process that aligns with the post-ingestion standards set by XDM, ensuring data consistency and integrity before it enters Cortex XSIAM.
• D.Establish a process to minimize data modifications during ingestion, prioritizing raw data capture and using XDM post-

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A Cortex XSIAM engineer at a SOC downgrades a critical threat intelligence content pack from the Cortex Marketplace while performing routine maintenance. As a result, the SOC team loses access to the latest threat intelligence data.
Which action will restore the functionality of the content pack to its previously installed version?

• A.Contact Palo Alto Networks Support to create an exception to revert to the previously installed version.
• B.Back up the current configuration and data, then revert to the previously installed version.
• C.Remove all integrations and playbooks associated with the content pack, then revert to the previously installed version.
• D.Directly reinstall the previously installed version over the current one.

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You are responsible for a large XSIAM deployment with Broker VMS deployed across multiple on-premises data centers, behind firewalls and proxies. You receive a critical security bulletin from Palo Alto Networks regarding a vulnerability in a specific Broker VM firmware version, requiring an immediate update to version 2.1.3. However, your internal change management policy mandates a maximum 2-day outage window for all non-critical updates. You need to identify the potential bottlenecks and a strategy to minimize downtime while ensuring the update's success. Which of the following considerations and actions are crucial for a successful, low- downtime Broker VM firmware update in this scenario? (Select all that apply)

• A.Pre-download the Broker VM firmware image to a local, accessible server within each data center to bypass potential internet bandwidth or proxy issues during the update.
• B.Verify network connectivity and firewall rules from each Broker VM to the XSIAM cloud update servers before initiating the update, specifically checking for newly introduced FQDNs or ports in the 2.1.3 release notes.
• C.Ensure that redundant Broker VMS are deployed in each data center and update them sequentially (e.g., one at a time) to maintain continuous data ingestion and minimize service disruption.
• D.Back up the Broker VM configuration and take a snapshot of the virtual machine before initiating the firmware update to facilitate quick recovery in case of an unforeseen issue.
• E.Temporarily disable all XDR Agents reporting to the Broker VMS to prevent data loss during the update process and re-enable them after successful completion.

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