Fortinet NSE4_FGT_AD-7.6 Practice Test 32

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.

Question 311

A company must approve exactly five known application signatures across several categories. How should FortiOS represent this set for controlled App Control policy reuse?

Create a supported application group of the five specified application IDs and apply it in the intended sensor/policy control.
Allow every application in every category containing one approved ID.
Create a DNS zone for each application ID.
Use a static route for every vendor public IP as the sole app allowlist.

Explanation

Correct Answer

FortiOS application groups can enumerate application IDs. This captures the exact five signature identities without permitting their entire categories.

Incorrect Answers

This expands five explicit approvals to many unrelated applications.

DNS records are not FortiOS application-signature grouping objects.

Vendor IPs are not equivalent to application signatures or protocol identity.

Question 312

The same employee application must be blocked on two different VLAN-to-WAN rules. The sensor is applied to only the first; the second VLAN is still allowed. Which deployment change is required?

Change the web-filter category for the app vendor domain.
Remove the second VLAN gateway address.
Increase FortiOS HA heartbeat link speed.
Reference the intended Application Control sensor from both effective VLAN forwarding policies with matching UTM inspection enabled.

Explanation

Correct Answer

A sensor does not automatically apply across every VLAN: each independently matched policy needs the appropriate security profile.

Incorrect Answers

URL categorization is a different engine and cannot guarantee application signature enforcement on VLAN two.

Deleting connectivity is not controlled app-policy enforcement.

HA communication cannot attach UTM profiles to forwarding rules.

Question 313

An application signature update adds a new category classification that may affect a medical device network. What acceptance process is most defensible before imposing a deny?

Deploy the strictest possible category Block immediately without logs or rollback.
Disable the signature database and classify traffic by destination port only.
Turn off policy logging and declare there are no affected applications.
Run a scoped Monitor phase, collect matched application IDs and affected endpoints, then approve or adjust explicit block actions based on observations.

Explanation

Correct Answer

The sensor can log recognized applications in Monitor mode to support safe tuning before disruptive policy activation.

Incorrect Answers

An unassessed change risks clinical service outages from false positives.

Port matching loses the application identity needed to measure risk.

Absent evidence is not proof of no impact.

Question 314

A legitimate ERP component trips one App Control signature with false positives, but the sensor must keep blocking other malware-like apps. Which repair is least disruptive?

Turn off Application Control in every firewall policy.
Inspect the actual application signature and add an approved single-signature exception/override, then regression-test other category blocks.
Add all ERP users to FortiGate super_admin.
Set the WAN static route to blackhole the ERP server.

Explanation

Correct Answer

FortiOS supports exclusion by individual signatures; the exception should not deactivate a whole high-risk category.

Incorrect Answers

That removes all other application defenses as a side effect.

Administrator privilege does not correct application classification.

Breaking connectivity is not a safe signature false-positive remedy.

Question 315

The SOC must log a known application that begins using an anomalous port where it should never operate. Which Application Control feature is relevant to the nonstandard port policy?

Evaluate supported Application Control port enforcement checks against the application signature and permitted port list.
Disable the application sensor because all recognized apps use one port.
Rely on a DNS sinkhole to decide every TCP port.
Increase web category usage quota.

Explanation

Correct Answer

Application identification alone names the app; port-enforcement logic can check whether the recognized app uses approved service ports.

Incorrect Answers

The premise is that an app uses an unexpected port; removing identity checks weakens visibility.

DNS policy lacks per-application port compliance information.

Category time quota does not enforce a protocol port assignment.

Question 316

After attaching a P2P App Control Block signature to a client rule, the same peer-to-peer client tries both TCP/6881 and encrypted TCP/443. Which result proves the original bypass is gone?

Only TCP/6881 is denied while the peer-to-peer app works on 443.
Every HTTPS website is blocked with no app-identification event.
Both trial sessions are classified as the prohibited app and blocked by the sensor under the correct policy, irrespective of service port.
The WAN route table contains a default route.

Explanation

Correct Answer

App decoder/signature evidence across distinct transport ports proves control is application-aware rather than a port-only block.

Incorrect Answers

This reproduces the original port-evasion failure.

A blanket 443 outage does not prove the targeted application signature works.

Network reachability does not prove App Control classification or action.

Question 317

An application category contains one approved collaboration app and many unapproved P2P clients. Which TWO independent conditions validate a correct App Control exception?

The named approved application is permitted by a specific signature override on the intended sensor and matched policy.
Make the entire category Allow for all client groups.
Disable all application signatures on the matching firewall policy.
A different unapproved application from the same category is still identified and blocked.
Assume app vendor DNS success proves signature control.

Explanation

Correct Answer

A narrow signature-specific allow identifies the business exception rather than opening the entire category.

Negative testing demonstrates that broader category prevention remains effective.

Incorrect Answers

This grants access to unrelated P2P applications outside the approved exception.

With no sensor, neither identification nor category block can be demonstrated.

DNS resolution cannot show whether a particular application was classified or blocked.

Question 318

An unknown application session on TLS/443 is not recognized. Its supported signature requires HTTP fields. After an approved deep-inspection profile change, what evidence establishes root-cause visibility?

Only the server name becomes visible through SNI.
The same controlled TLS client now logs the expected application signature with the relevant UTM sensor while endpoint TLS trust remains valid.
A browser certificate warning occurs and the app is unclassified.
The URL is successfully resolved by DNS.

Explanation

Correct Answer

Recognition after controlled decryption isolates previously encrypted fields as the absent signature input; a trusted handshake by itself is insufficient.

Incorrect Answers

A hostname can remain visible with certificate inspection and is not proof the needed HTTP fields were decoded.

Broken endpoint trust prevents proper controlled inspection rather than proving recognition.

DNS lookup does not establish which app protocol was recognized inside TLS.

Question 319

A helpdesk ticket says a user was denied access even though the IPv4 firewall rule shows Accept. After a fix, the approved app should pass, but a prohibited remote-control app should still be blocked. What should policy logs show?

All application logs disappear because the sensor is disabled.
Every application receives the same Block result.
Only an administrator login audit event is recorded.
Both flows match the correct forwarding rule; App Control permits the approved signature and blocks only the forbidden signature.

Explanation

Correct Answer

A firewall Accept determines forwarding eligibility, while App Control determines signature-specific UTM action on the permitted policy.

Incorrect Answers

Removing the sensor cannot demonstrate correct per-application control.

A blanket deny prevents the approved application as well.

Control-plane authentication is not a proxy for per-flow application decisions.

Question 320

After restoring an expired Application Control subscription, how should operations prove both the service entitlement and the endpoint signatures are operational?

Check only that the FortiGate GUI can be opened.
Disable all internet applications to make a block test pass.
Change the DHCP lease server to the FortiGate.
Confirm the license is valid, the current signature database has downloaded, and a known controlled application is recognized and handled by the sensor.

Explanation

Correct Answer

The entitlement is a prerequisite, but an up-to-date definition set and applied sensor log are separate evidence of actual detection.

Incorrect Answers

Management connectivity does not establish application signature update or enforcement.

A universal network deny does not prove the app sensor or licensed signature service works.

DHCP service placement cannot verify FortiGuard entitlement and signatures.

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Pass Your Fortinet NSE4_FGT_AD-7.6 Exam Easy!

Question 310

Explanation

Correct Answer

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Question 311

Explanation

Correct Answer

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Question 312

Explanation

Correct Answer

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Question 313

Explanation

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Question 314

Explanation

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Question 315

Explanation

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Question 316

Explanation

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Question 317

Explanation

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Question 318

Explanation

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Question 319

Explanation

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Question 320

Explanation

Correct Answer

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