Fortinet NSE5_FSM-6.3 Fortinet NSE 5 - FortiSIEM 6.3 Exam Practice Test

Answer : B

Rule Evaluation in FortiSIEM: Rules in FortiSIEM are evaluated periodically to check if the defined conditions or subpatterns are met.

Frequency Field: The Frequency field in a rule determines the interval at which the rule's subpattern will be evaluated.

Evaluation Interval: This defines how often the system will check the incoming events against the rule's subpattern to determine if an incident should be triggered.

Impact on Performance: Setting an appropriate frequency is crucial to balance between timely detection of incidents and system performance.

Examples:

If the Frequency is set to 5 minutes, the rule will evaluate the subpattern every 5 minutes.

This means that every 5 minutes, the system will check if the conditions defined in the subpattern are met by the incoming events.

Reference: FortiSIEM 6.3 User Guide, Rules and Incidents section, which explains the Frequency field and how it impacts the evaluation of subpatterns in rules.

Answer : A

Syslog Reception Verification: To verify whether syslog messages are being received from a network device, a network packet capture tool can be used.

tcpdump Command: tcpdump is a powerful command-line packet analyzer tool available in Unix-like operating systems. It allows administrators to capture and analyze network traffic.

Usage: By using tcpdump with the appropriate filters (e.g., port 514 for syslog), administrators can monitor the incoming syslog messages in real-time to verify if they are being received.

Example Command: tcpdump -i <interface> port 514 captures the syslog messages on the specified network interface.

Reference: FortiSIEM 6.3 User Guide, CLI Commands section, which details the usage of tcpdump for network traffic analysis and verification of syslog reception.

Answer : D

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.

Reference: 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.

Answer : C

Raw Log Data: When devices send logs to FortiSIEM, the data arrives in a raw, unstructured format.

Data Parsing Process: The process that converts this raw log data into a structured format is known as data parsing.

Data Parsing: This involves extracting relevant fields from the raw log entries and organizing them into a structured format, making the data usable for analysis, reporting, and correlation.

Significance of Structured Data: Structured data is essential for effective event correlation, alerting, and generating meaningful reports.

Reference: FortiSIEM 6.3 User Guide, Data Parsing section, which details how raw log data is transformed into structured data through parsing.

Answer : C

Incident Management in FortiSIEM: FortiSIEM tracks incidents and their occurrences to help administrators manage and respond to recurring issues.

Performance Rule Triggering: When a performance rule, such as one for high CPU usage, is repeatedly triggered, FortiSIEM updates the corresponding incident rather than creating a new one each time.

Incident Table Updates:

Incident Count: The Incident Count value increases each time the rule is triggered, indicating how many times the incident has occurred.

First Seen and Last Seen Times: These timestamps are updated to reflect the first occurrence and the most recent occurrence of the incident.

Reference: FortiSIEM 6.3 User Guide, Incident Management section, explains how FortiSIEM handles recurring incidents and updates the incident table accordingly.

Answer : B

Feature Overview: FortiSIEM provides several tools for querying and reporting on device information within an environment.

Inventory Tab: The Inventory tab is specifically designed to display detailed information about devices, including their firmware versions.

Query Functionality: Within the Inventory tab, you can run queries to filter and display devices based on specific attributes, such as the firmware version for FortiGate devices.

Report Generation: By running a query in the Inventory tab, you can produce a report that lists the FortiGate devices and their corresponding firmware versions.

Reference: FortiSIEM 6.3 User Guide, Inventory Management section, explains how to use the Inventory tab to query and report on device attributes.

Answer : B

Offline Licensing in FortiSIEM: FortiSIEM provides mechanisms for offline licensing to accommodate environments without direct internet access.

License Tool Command: The command ./phLicenseTool --collect license_req.dat is used to collect license information necessary for offline registration.

Procedure Analysis: The exhibit shows the output of this command, which indicates the collection of license information to a file named license_req.dat.

Offline License Registration: This collected data file is then typically uploaded to the FortiSIEM support portal or provided to the FortiSIEM support team for processing and generating a license file.

Reference: FortiSIEM 6.3 Administration Guide, Licensing section, details the procedures for both online and offline license registration, including the use of the phLicenseTool for offline scenarios.