Pass the Fortinet NSE 6 Network Security Specialist NSE6_FSM_AN-7.4 Questions and answers with CertsForce

The correct answer is C. Regression. Regression is the machine learning task used when a model predicts a target value based on other fields in a dataset. In FortiSIEM’s machine learning workflow, regression configuration includes selecting Fields to use for Prediction and a Field to Predict. The User Guide explains that during regression training, the analyst chooses the fields used for prediction and the field being predicted, then trains the model with a Train factor. This matches the question exactly: the model predicts a target based on other fields, and the inference phase can identify anomalies when observed values differ significantly from predicted values. Classification is used to assign records to discrete classes or categories, not to predict a continuous target metric from other variables. Clustering groups similar observations without a predefined target field. Forecasting predicts future values over time, normally based on time-series behavior. Because the question specifically describes predicting a target field from other dataset fields and detecting mismatch from the prediction, the correct machine learning method is Regression.

The Incident Status shows " Auto Cleared " , and the Cleared Reason states: " Rule has not been triggered for 20 minutes. " This indicates that the incident was automatically cleared by the rule logic after a defined period of inactivity.

The correct answer is C because the exhibit shows the incident status as Auto Cleared and the cleared reason indicates that the rule condition was no longer being triggered. The Study Guide explains that FortiSIEM supports clear conditions and auto-clearing behavior at the rule level. It states that if a time-based clear condition is configured, FortiSIEM can auto-clear the incident after the last occurrence if the trigger condition no longer exists. It also explains pattern-based clear behavior: FortiSIEM evaluates clear-condition subpatterns and compares attributes from the clear condition with the original incident attributes. If the configured attributes match, the incident status is set to auto cleared. In the exhibit, the cleared reason says the rule has not been triggered for a defined number of minutes. That is not a manual action by the analyst and not an endpoint-generated all-clear signal. It is FortiSIEM’s rule-based clearing logic. Option B is also wrong because the exhibit shows a specific rule inactivity period, not a generic 24-hour timeout.

The correct answers are A. Email and B. FortiSIEM Case. FortiSIEM automation policies can notify or route work to analysts when an incident is triggered. The Study Guide describes the incident notification email workflow and explains that when an incident triggers and an automation policy is defined, FortiSIEM can send a notification email using the default template. It also explains that notification frequency is configured per rule and that repeated incident notifications are controlled by the frequency timer. The FortiSIEM 7.4 User Guide also describes automated case creation through automation policy. It states that an automation policy can use the action Create Case when an incident is created, and that a case management policy can assign FortiSIEM Analyst Teams in an ordered handling sequence. Syslog is not listed as one of the analyst notification methods in the automation policy options shown in this question; FortiSIEM supports SNMP and webhook-style actions, but not “Syslog” as the listed answer. A pop-up window is not an automation policy notification method. Therefore, the two correct analyst-notification/routing methods are Email and FortiSIEM Case.

The correct answer is A because CMDB objects are referenced from the Value field after selecting the appropriate event attribute and operator. The FortiSIEM Study Guide gives a structured search example that references the CMDB. In that example, the attribute is Reporting IP, the operator is IN, and the value is selected from CMDB groups such as Devices: Windows and Networks: Inside Net. The guide explains that to show events reported by Windows servers within a specific network, you set the attribute and operator first, then browse the CMDB and select the relevant CMDB group value. This confirms the workflow: the CMDB reference is chosen as the value of the condition, not as the attribute itself. Option B is incorrect because the CMDB tab is not used to launch the analytics search this way. Option C is not a valid workflow. Option D is wrong because the attribute is selected from event or CMDB attribute lists, while the CMDB object or group is selected in the value field.

The correct answer is B because the analyst is searching for events to either of two destination IP addresses, but the filter uses the wrong Boolean relationship. The FortiSIEM Study Guide explains structured searches with multiple conditions and states that “when you use multiple conditions, you must specify the next logical operator between conditions.” It gives a direct example: when searching for events from two specific devices, the first condition is one IP address, the second condition is another IP address, and “the next logical operator between the two conditions is an OR operator, because the search is for events from condition 1 OR condition 2.” The same logic applies here. A single event cannot usually have Destination IP equal to 10.10.1.1 and Destination IP equal to 192.168.1.1 at the same time. Using AND requires both conditions to be true simultaneously, so no results are returned. The correct operator between the two Destination IP conditions is OR.

The rule is triggering on successful RDP connection events because the Next operator between the two subpatterns is set to OR . The FortiSIEM Study Guide explains that multiple subpattern rules are used when patterns must occur within a specific time period or when one of several patterns proves that an incident condition exists. It lists the OR operator as: “Subpattern X OR Subpattern Y occurred within the Time Window.” The same Study Guide further explains that if multiple patterns are used, FortiSIEM requires a next operator, and in the OR example, “an event that matches either” subpattern will trigger. It also states that because the next operator is OR, the constraint between the two subpatterns is not enforced.

In the exhibit, Subpattern 1 matches RDP traffic on TCP/UDP port 3389 from FortiGate traffic-forward events, while Subpattern 2 matches logon failure events with COUNT(Matched Events) > = 3. Because the rule uses OR, FortiSIEM can trigger when only the RDP connection subpattern matches, even if the failed-logon subpattern does not match. The correct logic should require both subpatterns to match with the intended relationship constraints, not either subpattern independently.

The fields are highlighted in red because unique values such as Event Receive Time and Raw Event Log cannot be used in group-by operations. Grouping requires aggregatable or consistent values across events, while these fields are unique to each event, making them incompatible for grouping.

The correct answer is A because the highlighted fields are not valid for that grouped/aggregated display configuration. The FortiSIEM 7.4 User Guide notes that some event attributes, functions, and queries are not supported in specific analytics result-filter and display contexts. It lists date fields, including examples such as Event Receive Time , and also lists Raw Event Log and Binary Raw Event Log among unsupported fields for that context. The reason is practical: grouping requires stable values that can combine multiple events into meaningful grouped rows. Attributes such as Event Receive Time and Raw Event Log are highly specific to individual events. If every event has its own receive timestamp or unique raw log content, grouping by those fields defeats aggregation and can create one row per event rather than meaningful grouped output. COUNT(Matched Events) itself is a valid aggregate expression when used correctly. Event Receive Time is available in logs, but it is not appropriate as a grouped field in the configuration shown. Therefore, the red highlighting indicates invalid grouped fields caused by unique/non-groupable values.

The correct answer is Local Auto. The uploaded answer was right, but its explanation was sloppy because it incorrectly described Local mode as the most time-consuming mode. In FortiSIEM machine learning, Local Auto mode selects the best algorithm by evaluating multiple candidate algorithms. The User Guide states that in Local Auto mode, “FortiSIEM picks the best algorithm” and that the Max Run Time parameter limits how long the job can run; longer runtime can produce better results. That is why Local Auto can take the most time. Forecasting and Regression are task types, not run modes.

The correct answer is A. A configuration management database (CMDB) device group . In the exhibit, the analytics filter uses Source IP IN Group: VPN Gateway . In FortiSIEM analytics, values shown as Group: for IP/device-related attributes commonly reference FortiSIEM CMDB groups, not firewall address groups or rule folders. The FortiSIEM 7.4 User Guide explains how CMDB groups are inserted into queries: to add a CMDB group, the user selects an attribute, selects an operator such as IN , and then selects a value from CMDB. The guide gives a direct example where a reporting IP is matched using a firewall device group, expressed as a condition equivalent to “reptDevIpAddr IN Firewall group.”

This matches the exhibit’s structure: Source IP is the event attribute, IN is the operator, and Group: VPN Gateway is the selected CMDB group value. A FortiSIEM watchlist is different; the Study Guide describes watchlists as containers of similar items that can be referenced in searches, rules, and reports, but they are managed under Resources > Watch Lists, not shown here as a CMDB-style device group value. A FortiGate address group exists on FortiGate, not as this FortiSIEM analytics CMDB group reference.

The rule is matching VPN logon failure events where the Source Country is outside the configured home country . In the exhibit, the filter section shows Event Type IN EventTypes: VPN Logon Failure and Source Country NOT IN GeoCountries: My Home . That means the source must be outside the home-country geo group. The aggregate condition shows COUNT(Matched Events) > = 3 , so the rule is looking for at least three matching failed VPN logon events. The Group By section uses Source IP and User , so FortiSIEM evaluates the count per unique source IP and user combination, not by different countries.

The FortiSIEM Study Guide explains that a rule subpattern contains three components: Filter , Aggregate , and Group By . It states that the filter identifies the matching event group, the aggregate function specifies how many events must match, and Group By combines events with the same grouped attributes into one row while the count tracks those events.

Option A is wrong because the rule does not count different countries. Options C and D are wrong because the source country is explicitly NOT IN My Home, not inside the home country.