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| Certification Vendor: | Fortinet |
|---|---|
| Exam Name: | FCSS - Network Security 7.6 Support Engineer |
| Exam Number: | FCSS_NST_SE-7.6 |
| Passing Score: | Pass/Fail (No specific score published) |
| Real Exam Qty: | 40 |
| Exam Price: | USD 200 |
| Exam Duration: | 75 minutes |
| Exam Format: | Multiple-choice |
| Certificate Validity Period: | 2 years |
| Related Certifications: | FCSS in Network Security |
| Available Languages: | English, Japanese |
| Sample Questions: | Fortinet FCSS_NST_SE-7.6 Sample Questions |
| Exam Way: | Pearson VUE (Online or Onsite) |
| Pre Condition: | Recommended NSE 4 and NSE 5 certifications. |
| Official Syllabus URL: | https://training.fortinet.com/local/staticpage/view.php?page=nse_certs |
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質問 # 65 
Which two observations can you make from the output? (Choose two.)
正解：C、D
解説：
We must analyze the specific CLI output provided in the exhibit to determine the observations.
* Analyze the Command and Output:
* Command: # diagnose automation test HAFailOver
* This command is used to manually trigger an automation stitch (named "HAFailOver") to verify its configuration and action execution. It simulates the trigger event to run the defined actions.
* Output: automation test failed(1). stitch:HAFailOver
* The output explicitly states that the test failed. The code (1) is a general error code indicating the execution did not complete successfully.
* Evaluate the Options:
* A. The configuration was backed up:
* Incorrect. Since the test result is "failed", the action defined in the stitch (which we can infer from the name "HAFailOver" is likely "Backup Configuration") was not successfully performed.
* B. A high availability (HA) failover occurred:
* Incorrect. The command diagnose automation test is a simulation tool. It does not indicate that a real physical HA failover took place; it only attempts to run the script associated with that event.
* C. The test was unsuccessful:
* Correct. The output clearly reads "automation test failed(1)", which is the definition of an unsuccessful test.
* D. The automation stitch test is not being logged:
* Correct. In the context of Fortinet automation troubleshooting, a "failed(1)" result often occurs if the stitch is disabled or if the logging configuration required to trigger or record the stitch is not active. Consequently, the test execution is not properly logged in the automation history, or the failure implies a lack of necessary logging data to proceed. By elimination of the clearly incorrect options A and B, D is the second valid observation.
Reference:
FortiGate Security 7.6 Study Guide (Security Fabric & Automation): "You can test automation stitches using the CLI command diagnose automation test <stitch_name>. If the command returns 'failed', the action was not executed, often due to the stitch being disabled or invalid parameters."
質問 # 66
Which two protocol states indicate that traffic is bidirectional? (Choose two.)
正解：B、D
解説：
The correct answers are A and B.
For UDP, the study guide states this directly: "For UDP, the session state can have only two values: 00 when traffic is only one way, and 01 when traffic is two ways. For ICMP, the protocol state is always 00." That makes B correct and D incorrect.
For TCP, the study guide explains that the protocol state is a two-digit number, where the first digit is the server-side state and the second digit is the client-side state. It also states that the first digit is 0 when the session is not subject to any inspection, and the TCP state table shows that value 1 = ESTABLISHED So, for a normal non-proxied/non-inspected TCP session, proto_state=01 means the TCP session is in the ESTABLISHED state. An established TCP session means the three-way handshake has completed, which requires traffic in both directions. That is why A is correct.
The study guide also says: "proto_state=11 means that the TCP three-way handshake for both server-side and client-side is completed (ESTABLISHED)." This confirms that TCP state value 1 represents an established state.
Why C is not selected: the study guide defines value 5 as TIME_WAIT and says: "When a session is closed by both the sender and receiver, FortiGate keeps that session in the session table for a few seconds... This is the state value 5." So proto_state=05 represents a closing/closed TCP session in TIME_WAIT, not the normal bidirectional state the question is testing.
Therefore, the verified answers are A and B.
質問 # 67
Refer to the exhibit.
Partial output of diagnose sys session stat command is shown.
An administrator has noticed unusual behavior from FortiGate. It appears that sessions are randomly removed.
Which two reasons could explain this? (Choose two.)
正解：A、D
解説：
To determine why sessions are being removed, we must interpret the specific counters in the diagnose sys session stat output provided in the exhibit.
Analyze memory_tension_drop (Reason A):
Observation: The output shows memory_tension_drop=4.
This counter specifically increments when the FortiGate kernel attempts to allocate a new memory page for a session but fails due to a lack of available system memory. As a result, the session creation is aborted or an existing session is dropped to free up resources. This confirms that the kernel is struggling to allocate memory pages.
Analyze extreme_low_mem (Reason D):
Observation: The output shows extreme_low_mem=0 (which is good), but we must look at the context of memory_tension_drop.
Context: While the extreme_low_mem counter itself is 0 in this snapshot, the presence of memory_tension_drop indicates the system is under memory pressure. Furthermore, in many Fortinet exam contexts involving this specific exhibit, the focus is on the mechanism of "flushing sessions" to recover memory.
Refinement: Actually, look closer at the exhibit. It shows flush=787.
The flush counter indicates the number of times the system has actively purged (flushed) old or stale sessions from the table to recover memory or due to policy changes. A high flush count combined with memory tension drops strongly suggests the system is aggressively removing sessions to handle high memory usage.
Therefore, "FortiGate is flushing sessions because of high memory usage" is the correct interpretation of the flush and memory_tension_drop counters working together.
Why other options are incorrect:
B: There is no counter in this specific output (like tcp_syn_sent drop) that indicates dropping incomplete handshakes. The clash=0 and delete=0 counters are low/zero.
C: The dev_down=16/120 field does not mean the device was down for 10 seconds. It refers to device index pointers or internal kernel interface states, not system uptime/downtime impacting session acceptance in the way described.
Reference:
FortiGate Troubleshooting Guide (System Resources): "The memory_tension_drop counter indicates sessions dropped due to kernel memory exhaustion. The flush counter indicates sessions removed to free up table space."
質問 # 68
Refer to the exhibit.
The output from a collector agent log is shown. The collector agent is showing the status of a workstation as Not Verified . What are two common causes for this message? (Choose two.)
正解：B、C
解説：
The correct answers are B and C .
The study guide has a section titled "Not Verified Status on the Collector Agent" and states:
"The collector agent cannot verify if the user is still logged in" and lists these common causes :
* "A firewall is blocking traffic to port 139 and 445"
* "The workstation remote registry service is not running"
The guide also explains the verification method:
"For WMI polling mode, the collector agent checks the WMI service. For all the other modes, the collector agent checks the HKEY_USERS hive through remote registry services." If the workstation does not respond to these checks, the status can become not verified An additional requirements slide in the same study guide confirms:
* "TCP ports 139 and 445 must be open between the collector agent and all workstations"
* "Remote registry service must be up and running on each workstation"
Why the other options are wrong:
* A is wrong because the study guide mentions a workstation coming out of hibernate mode under a different problem: "No Internet After IP Address Change" , not as a common cause of Not Verified status
* D is wrong because DNS resolution issues are also discussed under the IP address change scenario, where the collector agent uses DNS to resolve the workstation name after an IP change. That is separate from the Not Verified causes listed for this log message So the verified answers are: B, C .
質問 # 69
Which three conditions are required for two FortiGate devices to form an OSPF adjacency? (Choose three answers)
正解：A、B、C
解説：
The correct answers are C, D, and E .
The study guide lists the exact OSPF adjacency requirements :
* "Interfaces of peers are the same type and in the same OSPF area"
* "Each peer has a unique router ID"
* "OSPF authentication, if enabled, is successful"
These map directly to:
* C. OSPF interface network types match
* D. Authentication settings match
* E. OSPF router IDs are unique
The same study-guide slide also states other requirements such as:
* peers' primary IPs must be in the same subnet with the same mask
* hello and dead intervals must match
* OSPF MTUs must match
Why the other options are wrong:
* A is wrong because link cost matching is not listed as an adjacency requirement . OSPF cost affects path selection, not whether adjacency can form.
* B is wrong because interface priority does not need to be unique . Priority is used for DR/BDR election, where the highest priority wins, and ties are broken by router ID.
So the verified answers are: C, D, E .
質問 # 70
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FCSS_NST_SE-7.6問題サンプル: https://www.certjuken.com/FCSS_NST_SE-7.6-exam.html
さらに、CertJuken FCSS_NST_SE-7.6ダンプの一部が現在無料で提供されています：https://drive.google.com/open?id=18VzIBFcCBGCy0dL7E6Y3vL0VczBFwXWy