[2025年03月]更新のNSE5_FSM-6.3問題集完全版解答でNSE 5 Network Security Analyst試験学習ガイド
試験問題と解答NSE5_FSM-6.3学習ガイド
質問 # 15
Which statement about global thresholds and per device thresholds is true?
- A. FortiSIEM uses global and per device thresholds tor all performance metrics.
- B. FortiSIEM uses global thresholds for all security metrics.
- C. FortiSIEM uses fixed hardcoded thresholds for all performance metrics.
- D. FortiSIEM uses global thresholds for all performance metrics.
正解：A
解説：
Threshold Management: FortiSIEM uses thresholds to generate alerts and incidents based on performance and security metrics.
Global Thresholds: These are default thresholds applied to all devices and metrics across the system, providing a baseline for alerts.
Per Device Thresholds: These thresholds can be customized for individual devices, allowing for more granular control and tailored monitoring based on specific device characteristics and requirements.
Usage in Performance Metrics: Both global and per device thresholds are used for performance metrics to ensure comprehensive and precise monitoring.
References: FortiSIEM 6.3 User Guide, Thresholds and Alerts section, details the application of global and per device thresholds for performance and security metrics.
質問 # 16
Refer to the exhibit.
Which value will FortiSIEM use to populate theEvent Type field?
- A. phPerfJob
- B. PHL_INFO
- C. diskUtil
- D. PH_DSV_MON_SYS_DISK_UTIL
正解：D
解説：
Event Type Population: In FortiSIEM, the Event Type field is populated based on specific identifiers within the raw message or event log.
Raw Message Analysis: The exhibit shows a raw message with various components, includingPH_DEV_MON_SYS_DISK_UTIL,PHL_INFO,phPerfJob, anddiskUtil.
Primary Event Identifier: ThePH_DEV_MON_SYS_DISK_UTILat the beginning of the raw message is the primary identifier for the event type. It categorizes the type of event, in this case, a system disk utilization monitoring event.
Event Type Field: FortiSIEM uses this primary identifier to populate the Event Type field, providing a clear categorization of the event.
References: FortiSIEM 6.3 User Guide, Event Processing and Event Types section, details how event types are identified and populated in the system.
質問 # 17
An administrator is trying to identify an issue using an expression bated on the Expression Builder settings shown in the exhibit however, the error message shown in the exhibit indicates that the expression is invalid.
Which is the correct expression?
- A. COUNT(Matched Events)
- B. (COUNT) Matched Events
- C. Matched Events(COUNT)
- D. Matched Events COUNT()
正解：A
質問 # 18
Refer to the exhibit.
What does the pauso icon indicate?
- A. Data collection is paused duo to an issue, such as a change of password.
- B. Data collection is paused after the intervals shown for metrics.
- C. Data collection execution failed because the device is not reachable.
- D. Data collection has not started.
正解：A
解説：
Data Collection Status: FortiSIEM displays various icons to indicate the status of data collection for different devices.
Pause Icon: The pause icon specifically indicates that data collection is paused, but this can happen due to several reasons.
Common Cause for Pausing: One common cause for pausing data collection is an issue such as a change of password, which prevents the system from authenticating and collecting data.
Exhibit Analysis: In the provided exhibit, the presence of the pause icon next to the device suggests that data collection has encountered an issue that has caused it to pause.
References: FortiSIEM 6.3 User Guide, Device Management and Data Collection Status Icons section, which explains the different icons and their meanings.
質問 # 19
A FortiSIEM is continuously receiving syslog events from a FortiGate firewall. The FortiSIEM administrator is trying to search the raw event logs for the last two hours that contain the keyword tcp . However, the administrator is getting no results from the search.
Based on the selected filters shown in the exhibit, why are there no search results?
- A. The administrator selected - in the Operator column That a the wrong operator.
- B. The administrator selected AND in the Next drop-down list. This is the wrong boolean operator.
- C. In the Time section, the administrator selected the Relative Last option, and in the drop-dawn lists, selected 2 and Hours as the time period. The time period should be 24 hours.
- D. The keyword is case sensitive Instead of typing TCP in the Value field. the administrator should type tcp.
正解：A
質問 # 20
Which process converts raw log data to structured data?
- A. Data enrichment
- B. Data parsing
- C. Data classification
- D. Data validation
正解：B
解説：
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.
References: FortiSIEM 6.3 User Guide, Data Parsing section, which details how raw log data is transformed into structured data through parsing.
質問 # 21
If an incident's status is Cleared, what does this mean?
- A. Two hours have passed since the incident occurred and the incident has not reoccurred.
- B. A clear condition set an a rule was satisfied.
- C. The incident was cleared by an operator.
- D. A security rule issue has been resolved.
正解：B
質問 # 22
Refer to the exhibit.
If events are grouped by User. Source IP. and Application Category attributes in FortiSiEM. how many results will be displayed?
- A. Five results will be displayed.
- B. Three results will be displayed.
- C. No results will be displayed.
- D. Seven results will be displayed.
正解：A
解説：
Grouping Events in FortiSIEM: Grouping events by specific attributes allows for the aggregation of similar events, providing clearer insights and reducing clutter.
Grouping Criteria: For this question, events are grouped by "User," "Source IP," and "Application Category." Unique Combinations Analysis:
* Ryan, 1.1.1.1, Web App(appears multiple times but is one unique combination)
* John, 5.5.5.5, DB
* Paul, 3.3.2.1, Web App
* Ryan, 1.1.1.15, DB
* Wendy, 1.1.1.6, DB
Result Calculation: There are five unique combinations in the provided data based on the specified grouping attributes.
References: FortiSIEM 6.3 User Guide, Event Management and Reporting sections, which explain how to group events by various attributes for analysis and reporting purposes.
質問 # 23
Refer to the exhibit.
Which section contains the sortings that determine how many incidents are created?
- A. Group By
- B. Filters
- C. Aggregate
- D. Actions
正解：A
解説：
Incident Creation in FortiSIEM: Incidents in FortiSIEM are created based on specific patterns and conditions defined within the system.
Group By Function: The "Group By" section in the "Edit SubPattern" window specifies how the data should be grouped for analysis and incident creation.
Impact of Grouping: The way data is grouped affects the number of incidents generated. Each unique combination of the grouped attributes results in a separate incident.
Exhibit Analysis: In the provided exhibit, the "Group By" section lists "Reporting Device," "Reporting IP," and "User." This means incidents will be created for each unique combination of these attributes.
References: FortiSIEM 6.3 User Guide, Rule and Pattern Creation section, which details how grouping impacts incident generation.
質問 # 24
Refer to the exhibit.
How was the FortiGate device discovered by FortiSIEM?
- A. Auto log discovery
- B. Pull events discovery
- C. Syslog discovery
- D. GUI log discovery
正解：A
解説：
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.
質問 # 25
In the rules engine, which condition instructs FortiSIEM to summarize and count the matching evaluated data?
- A. Aggregation
- B. Filters
- C. Time Window
- D. Group By
正解：A
解説：
Rules Engine in FortiSIEM: The rules engine evaluates incoming events based on defined conditions to detect incidents and anomalies.
Aggregation Condition: The aggregation condition instructs FortiSIEM to summarize and count the matching evaluated data.
* Function: Aggregation is used to group events based on specified criteria and then perform operations such as counting the number of occurrences within a defined time window.
Purpose: This allows for the detection of patterns and anomalies, such as a high number of failed login attempts within a short period.
References: FortiSIEM 6.3 User Guide, Rules Engine section, which explains how aggregation is used to summarize and count matching data.
質問 # 26
Refer to the exhibit.
It events are grouped by Event Type and User attributes in FortiSIEM. how many results will be displayed?
- A. Eight results will be displayed.
- B. Two results will be displayed.
- C. No results will be displayed.
- D. Four results will be displayed.
正解：D
解説：
Grouping Events in FortiSIEM: Grouping events by specific attributes allows administrators to aggregate and analyze data more efficiently.
Grouping Criteria: In this case, the events are grouped by "Event Type" and "User" attributes.
Unique Combinations: To determine the number of results displayed, identify the unique combinations of the
"Event Type" and "User" attributes in the provided data.
* Failed Logon by Ryan(appears multiple times but is one unique combination)
* Failed Logon by John
* Failed Logon by Paul
* Failed Logon by Wendy
Unique Groupings: There are four unique groupings based on the given data: "Failed Logon" by "Ryan",
"John", "Paul", and "Wendy".
References: FortiSIEM 6.3 User Guide, Event Management and Reporting sections, which explain how events are grouped and reported based on selected attributes.
質問 # 27
In FortiSIEM enterprise licensing mode, it the link between the collector and data center FortiSlEM cluster is down, what happens?
- A. The collector processes stop, and events ate dropped.
- B. The collector continues performance collection of devices, but slops receiving syslog.
- C. The collector drops incoming events like syslog. but stops performance collection.
- D. The collector buffers events
正解：B
質問 # 28
Refer to the exhibit.
The FortiSIEM administrator is examining events for two devices to investigate an issue. However, the administrator is not getting any results from their search.
Based on the selected filters shown in the exhibit, why is the search returning no results?
- A. An invalid IP subnet is typed in the Value column.
- B. The wrong boolean operator is selected in the Next column.
- C. Parenthesis are missing.
- D. The wrong option is selected in the Operator column.
正解：B
解説：
Search Filters in FortiSIEM: When searching for events, the correct use of filters and logical operators is crucial to obtain accurate results.
Issue Analysis:
* Selected Filters: The exhibit shows filters for two different Reporting IP addresses.
* Logical Operators: The use of "AND" between the two Reporting IP addresses implies that an event must match both IP addresses simultaneously, which is not possible for a single event.
Correct Usage: To search for events from either of the two IP addresses, parentheses should be used to group conditions logically.
* Corrected Filter:(Reporting IP = 192.168.1.1 OR Reporting IP = 172.16.10.3)would return events from either IP address.
References: FortiSIEM 6.3 User Guide, Search and Filters section, which explains the use of logical operators and the importance of parentheses in constructing effective search queries.
質問 # 29
Refer to the exhibit.
If events are grouped by Reporting IP, Event Type, and user attributes in FortiSIEM, how ,many results will be displayed?
- A. Five results will be displayed.
- B. Unique attribute cannot be grouped.
- C. Seven results will be displayed.
- D. There results will be displayed.
正解：C
解説：
Grouping Events: Grouping events by specific attributes allows for the aggregation of similar events.
Grouping Criteria: For this question, events are grouped by "Reporting IP," "Event Type," and "User." Unique Combinations Analysis:
* 10.10.10.10, Failed Logon, Ryan, 1.1.1.1, Web App
* 10.10.10.11, Failed Logon, John, 5.5.5.5, DB
* 10.10.10.10, Failed Logon, Ryan, 1.1.1.1, Web App(duplicate, counted as one unique result)
* 10.10.10.10, Failed Logon, Paul, 3.3.2.1, Web App
* 10.10.10.11, Failed Logon, Ryan, 1.1.1.15, DB
* 10.10.10.11, Failed Logon, Wendy, 1.1.1.6, DB
* 10.10.10.10, Failed Logon, Ryan, 1.1.1.15, DB
Result Calculation: There are seven unique combinations based on the specified grouping attributes.
References: FortiSIEM 6.3 User Guide, Event Management and Reporting sections, explaining how events are grouped and reported based on selected attributes.
質問 # 30
What is a prerequisite for a FortiSIEM supervisor with a worker deployment, using the proprietary flat file database?
- A. The event database must be on NFS
- B. The event database must be on a local disk
- C. The archive mount must be on a local disk
- D. The CMDB database must be on NFS
正解：A
質問 # 31
To determine whether or not syslog is being received from a network device, which is the best command from the backend?
- A. phSyslogRecorder
- B. phDeviceTest
- C. tcpdump
- D. netcat
正解：C
質問 # 32
Refer to the exhibit.
A FortiSIEM is continuously receiving syslog events from a FortiGate firewall The FortiSlfcM administrator is trying to search the raw event logs for the last two hours that contain the keyword tcp . However, the administrator is getting no results from the search.
Based on the selected filters shown in the exhibit, why are there no search results?
- A. The administrator selected AND in the Next drop-down list. This is the wrong boolean operator.
- B. The administrator selected - in the Operator column That a the wrong operator.
- C. In the Time section, the administrator selected the Relative Last option, and in the drop-down lists, selected 2 and Hours as the lime period The time period should be 24 hours.
- D. The keyword is case sensitive Instead of typing TCP in the Value field. the administrator should type tcp.
正解：D
解説：
Case Sensitivity in Searches: In FortiSIEM, search queries, including those for raw event logs, are case sensitive. This means that keywords must be entered exactly as they appear in the logs.
Keyword Mismatch: The exhibit shows the keyword "TCP" in the Value field. If the actual events use "tcp" (lowercase), the search will return no results because of the case mismatch.
Correct Keyword: To match the keyword correctly, the administrator should enter "tcp" in the Value field.
References: FortiSIEM 6.3 User Guide, Search and Filtering section, which discusses the importance of case sensitivity in search queries.
質問 # 33
FortiSIEM is deployed in disaster recovery mode.
When disaster strikes, which two tasks must you perform manually to achieve a successful disaster recovery operation? (Choose two.)
- A. Change the DNS configuration to ensure that users, devices, and collectors log in to the secondary FortiSIEM.
- B. Promote the secondary supervisor to the primary role using the phSecondary2primary command.
- C. Promote the secondary workers to the primary rotes using the phSecworker2priworker command.
- D. Change the configuration for shared storage NFS configured for EventDB to the secondary FortiSIEM.
正解：A、C
解説：
Disaster Recovery Mode: FortiSIEM's disaster recovery (DR) mode ensures that there is a backup system ready to take over in case the primary system fails.
Manual Tasks for DR Operation: In the event of a disaster, certain tasks must be performed manually to ensure a smooth transition to the secondary system.
Promoting the Secondary Supervisor:
* Use the commandphSecondary2primaryto promote the secondary supervisor to the primary role. This command reconfigures the secondary supervisor to take over as the primary supervisor, ensuring continuity in management and coordination.
Changing DNS Configuration:
* Update the DNS configuration to direct all users, devices, and collectors to the secondary FortiSIEM instance. This ensures that all components in the environment cancommunicate with the newly promoted primary supervisor without manual reconfiguration of individual devices.
References: FortiSIEM 6.3 Administration Guide, Disaster Recovery section, provides detailed steps on promoting the secondary supervisor and updating DNS configurations during a disaster recovery operation.
質問 # 34
Which is a requirement for implementing FortiSIEM disaster recovery?
- A. The two supervisor nodes must have layer 2 connectivity.
- B. All worker nodes must access both supervisor nodes using IP.
- C. DNS names must be used for the worker upload addresses.
- D. SNMP, and WMI ports must be open between the two supervisor nodes.
正解：A
解説：
Disaster Recovery (DR) Implementation: For FortiSIEM to effectively support disaster recovery, specific requirements must be met to ensure seamless failover and data integrity.
Layer 2 Connectivity: One of the critical requirements for implementing FortiSIEM DR is that the two supervisor nodes must have layer 2 connectivity.
* Layer 2 Connectivity: This ensures that the supervisors can communicate directly at the data link layer, which is necessary for synchronous data replication and other DR processes.
Importance of Connectivity: Layer 2 connectivity between the supervisor nodes ensures that they can maintain consistent and up-to-date state information, which is essential for a smooth failover in the event of a disaster.
References: FortiSIEM 6.3 Administration Guide, Disaster Recovery section, which details the requirements and configurations needed for setting up disaster recovery, including the necessity for layer 2 connectivity between supervisor nodes.
質問 # 35
Consider thestorage of anomaly baseline date that is calculated for different parameters. Which database is used for storing this data?
- A. SVNDB
- B. Profile DB
- C. Event DB
- D. CMDB
正解：B
解説：
Anomaly Baseline Data: Anomaly baseline data refers to the statistical profiles and baselines calculated for various parameters to detect deviations indicative of potential security incidents.
Profile DB: The Profile DB is specifically designed to store such baseline data in FortiSIEM.
* Purpose: It maintains statistical profiles for different monitored parameters to facilitate anomaly detection.
* Usage: This data is used by FortiSIEM to compare real-time metrics against the established baselines to identify anomalies.
References: FortiSIEM 6.3 User Guide, Database Architecture section, which describes the different databases used in FortiSIEM and their purposes, including the Profile DB for storing anomaly baseline data.
質問 # 36
Three events are collected over a 10-minutc time period from two servers Server A and Server B.
Based on the settings being used for the rule subpattern. how many incidents will the servers generate?
- A. Server A will generate one incident and Server 8 will generate one incident
- B. Server A will generate one incident and Server 8 will not generate any incidents
- C. Server B will generate one incident and Server A will not generate any incidents
- D. Server A will not generate any incidents and Server B will not generate any incidents
正解：B
質問 # 37
Which FortiSIEM components can do performance availability and performance monitoring?
- A. Collectors only
- B. Supervisor, worker, and collector
- C. Supervisor and workers only
- D. Supervisor only
正解：B
質問 # 38
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