This NSE7 practice question tests your understanding of advanced threat protection. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A network administrator has configured FortiGate to send files to FortiSandbox for analysis. However, files are not being submitted. The administrator checks the FortiGate configuration and sees that the FortiSandbox server IP is correctly entered. What is the most likely cause of the issue?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A firewall policy is blocking communication to FortiSandbox on port 514
The most likely cause is that a firewall policy is blocking communication to FortiSandbox on port 514. FortiGate uses port 514 (syslog) to submit files to FortiSandbox, and if this port is blocked by an intermediate firewall or an implicit deny policy, the submission will fail even if the server IP is correctly configured. The administrator should verify that traffic to the FortiSandbox IP on UDP/TCP 514 is permitted by all relevant policies.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
A firewall policy is blocking communication to FortiSandbox on port 514
Why this is correct
FortiGate communicates with FortiSandbox via TCP port 514 (or custom). A missing or blocking policy would prevent file submission.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The FortiSandbox is not licensed for file submission
Why it's wrong here
Licensing issues would typically appear in logs, but the network connectivity check is more fundamental.
✗
The file type is not supported by FortiSandbox
Why it's wrong here
Unsupported file types would be excluded based on configuration, not silently fail submission.
✗
The FortiGate antivirus profile is set to flow-based inspection
Why it's wrong here
Flow-based inspection can still submit files to FortiSandbox if properly configured.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume the issue is with the FortiSandbox configuration (licensing or file support) rather than a basic network connectivity problem, especially since the FortiGate's own policy may not show a block if the blocking occurs upstream.
Detailed technical explanation
How to think about this question
FortiGate communicates with FortiSandbox using the Syslog protocol (RFC 5424) over UDP or TCP port 514 to send files for analysis. The FortiGate acts as a syslog client, encapsulating the file in a syslog message. If an intermediate firewall or security group blocks outbound port 514, the FortiGate will never receive an acknowledgment, and the submission queue will back up or fail silently. In real-world deployments, administrators often overlook that the FortiSandbox appliance may be on a different subnet or VLAN, requiring explicit firewall rules to allow this traffic.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Advanced Threat Protection — This question tests Advanced Threat Protection — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A firewall policy is blocking communication to FortiSandbox on port 514 — The most likely cause is that a firewall policy is blocking communication to FortiSandbox on port 514. FortiGate uses port 514 (syslog) to submit files to FortiSandbox, and if this port is blocked by an intermediate firewall or an implicit deny policy, the submission will fail even if the server IP is correctly configured. The administrator should verify that traffic to the FortiSandbox IP on UDP/TCP 514 is permitted by all relevant policies.
What should I do if I get this NSE7 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This NSE7 practice question is part of Courseiva's free Fortinet certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the NSE7 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.