NSE5_FSM-6.3 Dumps with Practice Exam Questions Answers

 Device Discovery Information: Information about discovered devices, including their configurations and statuses, is stored in a specific database.

 CMDB: The Configuration Management Database (CMDB) is used to store detailed information about the devices discovered by FortiSIEM.

Function: It maintains comprehensive details about device configurations, relationships, and other metadata essential for managing the IT infrastructure.

 Significance: Storing discovery information in the CMDB ensures that the FortiSIEM system has a centralized repository of device information, facilitating efficient management and monitoring.

 References: FortiSIEM 6.3 User Guide, Configuration Management Database (CMDB) section, which details the storage and usage of device discovery information.

 Discovery Methods in FortiSIEM: FortiSIEM can discover devices using various methods, including syslog, SNMP, and others.

 Syslog Discovery: The exhibit shows that the FortiGate device is discovered by FortiSIEM using syslog.

Syslog Parsing: The syslog messages sent by the FortiGate device are parsed by FortiSIEM to extract relevant information.

CMDB Entry: Based on the parsed information, an entry is populated in the Configuration Management Database (CMDB) for the device.

 Evidence in Exhibit: The exhibit shows the syslog flow from the FortiGate Firewall to the parsing and discovery process, resulting in the device being listed in the CMDB with the status "Pending."

 References: FortiSIEM 6.3 User Guide, Device Discovery section, which explains how syslog discovery works and how devices are added to the CMDB based on syslog data.

 Device Status in FortiSIEM: FortiSIEM assigns different statuses to devices based on their operational state and performance metrics.

 Packet Loss Impact: The reported packet loss percentage directly influences the status assigned to a device. Packet loss between 50% and 98% indicates significant network issues that affect the device's performance.

 Degraded Status: When packet loss is between 50% and 98%, FortiSIEM assigns a "Degraded" status to the device. This status indicates that the device is experiencing substantial packet loss, which impairs its performance but does not render it completely non-functional.

 Reasoning: The "Degraded" status helps administrators identify devices with serious performance issues that need attention but are not entirely down.

 References: FortiSIEM 6.3 User Guide, Device Availability and Status section, explains the criteria for assigning different statuses based on performance metrics such as packet loss.

 Advanced Analytical Rules Engine: FortiSIEM's rules engine allows for complex event correlation using multiple subpatterns.

 Operations for Referencing Subpatterns:

FOLLOWED_BY: This operation is used to indicate that one event follows another within a specified time window.

OR: This logical operation allows for the inclusion of multiple subpatterns, where the rule triggers if any of the subpatterns match.

AND: This logical operation requires all referenced subpatterns to match for the rule to trigger.

 Usage: These operations allow for detailed and precise event correlation, helping to detect complex patterns and incidents.

 References: FortiSIEM 6.3 User Guide, Advanced Analytics Rules Engine section, which explains the use of different operations to reference subpatterns in rules.

 Event Collection Overview: The exhibits show three events collected over a 10-minute period from two servers, Server A and Server B.

 Rule Subpattern Settings: The rule subpattern specifies two conditions:

AVG(CPU Util) > DeviceToCMDBAttr(Host IP : Server CPU Util Critical Threshold): This checks if the average CPU utilization exceeds the critical threshold defined for each server.

COUNT(Matched Events) >= 2: This requires at least two matching events within the specified period.

 Server A Analysis:

Events: Three events (CPU=90, CPU=90, CPU=95).

Average CPU Utilization: (90+90+95)/3 = 91.67, which exceeds the critical threshold of 90.

Matched Events Count: 3, which meets the condition of being greater than or equal to 2.

Incident Generation: Server A meets both conditions, so it generates one incident.

 Server B Analysis:

Events: Three events (CPU=70, CPU=50, CPU=60).

Average CPU Utilization: (70+50+60)/3 = 60, which does not exceed the critical threshold of 90.

Matched Events Count: 3, but since the average CPU utilization condition is not met, no incident is generated.

 Conclusion: Based on the rule subpattern, Server A will generate one incident, and Server B will not generate any incidents.

 References: FortiSIEM 6.3 User Guide, Event Correlation Rules and Incident Management sections, which explain how incidents are generated based on rule subpatterns and event conditions.