Fortinet NSE4_FGT_AD-7.6 Practice Test 31

Question 300

A newly installed FortiGate application sensor should block high-risk applications, but its FortiGuard Application Control subscription is expired. Select THREE prerequisites that together establish safe restored enforcement.

Renew/verify the required FortiGuard Application Control entitlement.
Disable application sensor logging to reduce event volume.
Treat a working outbound TCP connection as proof the denied app is blocked.
Permit every high-risk application by a broader first-match policy.
Confirm the appropriate application signatures have updated successfully.
Test a known named risky app under the matched sensor and verify the expected block/log.

Explanation

Correct Answer

Application signature functionality is subscription-dependent; an expired entitlement undermines supported definition access.

An active contract alone does not guarantee the appliance received current application signatures.

A controlled policy-hit test proves that signature and sensor actually enforce the desired app outcome.

Incorrect Answers

Suppressing detection logs cannot confirm signature updates or block outcomes.

Generic connectivity says nothing about application classification.

A bypass rule defeats the requested prevention rather than restoring it.

Question 301

An approved proprietary remote-control app is never recognized by the default application database; engineers have a stable protocol handshake fingerprint. Which TWO work items enable a specific rule rather than a port-only block?

Author and validate a custom application signature matching the known protocol fingerprint in a lab.
Configure only a website category for the app vendor hostname.
Raise TCP idle timeout for every session.
Disable all signature-engine updates and trust the source port.
Include the custom signature in the effective Application Control sensor and verify its action on a matching firewall policy.

Explanation

Correct Answer

A documented distinctive packet pattern can identify traffic that has no built-in application signature.

A custom signature does not enforce anything unless an applied sensor invokes it for that traffic.

Incorrect Answers

Different applications on one host can share the same web category, leaving the proprietary protocol unclassified.

Longer sessions do not identify application-specific protocol content.

The original failure is that port-only recognition cannot identify this application.

Question 302

A security team built an Application Control sensor on a DMZ-to-WAN policy, but test clients are in the Corporate zone and match Corporate-to-WAN policy 18. Which change addresses the missing app block?

Raise the model firewall MTU to account for the app payload.
Apply the intended sensor and UTM inspection to the actual Corporate-to-WAN rule selected by the client flow.
Enable HA session pickup for the DMZ policy.
Change the app vendor DNS TTL to 60 seconds.

Explanation

Correct Answer

FortiOS evaluates the first matching forwarding policy. A sensor on the wrong zone/rule cannot examine the traffic.

Incorrect Answers

MTU does not select an Application Control sensor.

HA state replication cannot change a Corporate-to-WAN policy match.

DNS caching is unrelated to wrong-zone security profile attachment.

Question 303

An administrator wants evidence of business-critical apps that match the Remote Access category before enabling a new category-wide block. Which safe rollout step minimizes accidental outage?

Apply a silent category-wide deny without logs.
Disable application signatures for the observation period.
Initially monitor/log the relevant category signature matches on the intended policies, review impact, then enforce only approved blockers.
Increase static-route cost for all WAN destinations.

Explanation

Correct Answer

A monitor phase gathers actual app IDs and user flows before a broad policy denial, enabling explicit impact assessment.

Incorrect Answers

Unexpected business traffic would be blocked with no useful reason evidence.

No application classification would be recorded for the risky category.

Route costs do not provide application usage evidence.

Question 304

A specific application signature falsely classifies an approved ERP client as unauthorized remote control. Other signatures in the category catch known bad tools. How should the sensor be adjusted?

Set the entire Remote Access category to Allow for everyone.
Disable every firewall policy that has Application Control.
Confirm the misfiring application ID and add a narrow signature exclusion/override with traceable justification, preserving the remaining category controls.
Turn off network routing to the ERP server.

Explanation

Correct Answer

FortiOS supports application signature exclusions/overrides; scope an exception to the false positive so category protections still apply elsewhere.

Incorrect Answers

That permits unrelated remote-access tools and over-expands the exception.

This removes inspection and interrupts unrelated approved traffic.

Routing denial is not a signature-level false-positive correction.

Question 305

A policy permits TCP/443 to a shared cloud IP, but compliance must block only a social-messaging application at that destination. A service object cannot distinguish it from approved HTTPS. What is necessary?

Block TCP/443 to the shared cloud IP for all applications.
Use an applicable Application Control signature/sensor with sufficient permitted protocol visibility instead of relying on port 443 alone.
Change all clients from DHCP to static addressing.
Raise FortiGuard web category quota.

Explanation

Correct Answer

Many applications share TCP/443. App signatures identify protocol/application behavior, while the firewall service field matches only transport parameters.

Incorrect Answers

This also interrupts legitimate services on the same address.

Source address assignment does not identify an app multiplexed over HTTPS.

A category quota is not specific application detection at a shared HTTPS destination.

Question 306

The `block-high-risk` sensor is too broad for a company that permits one approved high-risk app only to SOC analysts. Which component should encode the app-specific decision?

An unrestricted service `ALL` allow with no application sensor.
A custom application sensor with a specific signature override and a narrow analyst-matching firewall policy.
A separate WAN default route for analyst traffic with no app identity.
A DNS cache of the vendor hostname as the sole app signature.

Explanation

Correct Answer

Application Control actions can be set by category and signature; identity-scoped policy matching limits who receives the override.

Incorrect Answers

This permits every app and avoids the intended control entirely.

Route changes do not recognize or restrict the named high-risk app.

DNS names alone cannot discriminate all application behaviors or user authorization.

Question 307

An app-specific override is set to Allow, while the enclosing application category is Block. The policy is attached correctly. What must the reviewer inspect to predict the result?

The sensor matching order/priority for application signatures and the explicit override action, not just the broad category description.
Only the destination IP address listed in the default route.
Only the web-filter category for the same hostname.
Only the FortiGate admin trusted-host configuration.

Explanation

Correct Answer

Application-level explicit signature handling can take precedence over category filters; the effective sensor match must be inspected.

Incorrect Answers

Next-hop IP does not establish which sensor rule action is selected.

Application Control and web filtering are separate profile engines.

Admin login policy cannot resolve an application signature override.

Question 308

An Application Control profile reports a TLS flow as unknown, while the chosen app signature needs HTTP request content currently encrypted under certificate inspection. Which inspection limit should the analyst test?

Whether the admin GUI login certificate SAN contains the client workstation name.
Whether the WAN interface has a larger subnet mask.
Whether authorized deep inspection exposes the signature-required fields and that the chosen application decoder supports the protocol.
Whether the application name appears in an unrelated DNS zone file.

Explanation

Correct Answer

Not every app signature can classify an encrypted payload using handshake data alone; inspection visibility is a prerequisite.

Incorrect Answers

Management identity does not reveal fields in outbound application traffic.

Addressing can affect connectivity but cannot decrypt application fields.

A DNS name is not proof of a specific encrypted request/response signature.

Question 309

A user reports that firewall policy 19 accepted an HTTPS connection, but the app session reset. Logs show Application Control Signature 4097 with action Block. Which layer caused the denial?

An implicit deny after the already matched Accept policy.
A BGP aggregate-route suppressor.
A missing FSSO user entry necessarily caused the signature event.
The application sensor block action on that accepted forwarding policy, which operates after network policy matching.

Explanation

Correct Answer

FortiOS distinguishes a firewall Accept decision from later UTM App Control enforcement. The sensor log supplies the exact app action.

Incorrect Answers

The recorded app signature block is a more specific and later-stage denial than implicit policy lookup.

BGP routes cannot generate an Application Control signature-block log.

FSSO identity mismatch is distinct from a logged app-control signature denial.

Question 310

FortiGuard Application Control entitlement is active, but the latest signatures were not downloaded because the FortiGate uses a broken FortiGuard update proxy. What must be repaired?

Restore FortiGuard update connectivity/proxy configuration and confirm the application signature package reaches the expected version.
Renew a subscription that is already active while ignoring the update error.
Change all application sensor actions from Block to Allow.
Disable all network logs to save disk space.

Explanation

Correct Answer

License validity does not itself push definition updates through a broken update path; update transport and package status must be independently checked.

Incorrect Answers

Rebilling cannot fix proxy transport failure or deliver missing signatures.

Removing enforcement does not restore definition freshness.

Log volume is unrelated to the explicit update-proxy failure.

Fortinet NSE 4 - FortiOS 7.6 Administrator (NSE4_FGT_AD-7.6) Practice Tests

Fortinet NSE4_FGT_AD-7.6 Practice Test 29 - 10 Questions (Last Reviewed 16-Oct-2026)
Fortinet NSE4_FGT_AD-7.6 Practice Test 30 - 10 Questions (Last Reviewed 15-Oct-2026)
Fortinet NSE4_FGT_AD-7.6 Practice Test 31 - 10 Questions (Last Reviewed 14-Oct-2026)
Fortinet NSE4_FGT_AD-7.6 Practice Test 32 - 10 Questions (Last Reviewed 13-Oct-2026)
Fortinet NSE4_FGT_AD-7.6 Practice Test 33 - 10 Questions (Last Reviewed 12-Oct-2026)

Pass Your Fortinet NSE4_FGT_AD-7.6 Exam Easy!

Question 300

Explanation

Correct Answer

Incorrect Answers

Question 301

Explanation

Correct Answer

Incorrect Answers

Question 302

Explanation

Correct Answer

Incorrect Answers

Question 303

Explanation

Correct Answer

Incorrect Answers

Question 304

Explanation

Correct Answer

Incorrect Answers

Question 305

Explanation

Correct Answer

Incorrect Answers

Question 306

Explanation

Correct Answer

Incorrect Answers

Question 307

Explanation

Correct Answer

Incorrect Answers

Question 308

Explanation

Correct Answer

Incorrect Answers

Question 309

Explanation

Correct Answer

Incorrect Answers

Question 310

Explanation

Correct Answer

Incorrect Answers

Fortinet NSE 4 - FortiOS 7.6 Administrator (NSE4_FGT_AD-7.6) Practice Tests