NSE7 Advanced VPN and Zero Trust Practice Question
An administrator is configuring ZTNA inline CASB on a FortiGate to control access to a sanctioned SaaS application. The requirement is to block uploads of files containing credit card numbers while allowing normal business uploads. The administrator creates an access proxy rule and a CASB profile with a data loss prevention sensor. During testing, uploads of files with credit card numbers are still allowed. Which action should the administrator take to enforce the block?
⚠ Common exam trap
The trap here is assuming that creating a CASB profile or DLP sensor is enough, when the profile must be explicitly attached to the access proxy rule to take effect.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Attach the CASB profile to the ZTNA access proxy rule so the inline inspection can act on the upload.
Inline CASB requires the CASB profile to be attached to the ZTNA access proxy rule that handles the SaaS session. The profile contains the DLP sensor and SaaS application definitions that enable content inspection. Without this attachment, the FortiGate proxies the traffic but does not apply CASB controls, allowing sensitive uploads to proceed even though the profile and sensor exist.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Add the SaaS application FQDN to the ZTNA access proxy destination list.
Why it's wrong here
Including the FQDN ensures the proxy matches the SaaS destination, but it does not activate CASB or DLP inspection. The access proxy rule must reference the CASB profile for content enforcement. Destination matching alone only routes traffic through the proxy; it does not apply the data loss prevention sensor or block sensitive uploads.
- ✗
Enable deep inspection on the firewall policy that carries the SaaS traffic.
Why it's wrong here
Deep inspection decrypts TLS for inspection, but the CASB profile is still required to identify SaaS application actions and apply DLP logic. Without the CASB profile attached to the access proxy rule, decrypted traffic is not evaluated for SaaS upload content, so credit card data would still be permitted despite deep inspection being enabled.
- ✓
Attach the CASB profile to the ZTNA access proxy rule so the inline inspection can act on the upload.
Why this is correct
Inline CASB enforcement occurs only when the CASB profile is referenced by the access proxy rule handling the SaaS traffic. Creating the profile without attaching it leaves inspection inactive, so uploads pass uninspected. Attaching the profile makes the DLP sensor evaluate the upload stream and block content matching the credit card pattern.
- ✗
Configure the DLP sensor to use the 'block' action instead of 'monitor' in the sensor definition.
Why it's wrong here
Setting the DLP sensor action to block is necessary for enforcement, but the sensor must first be reachable through an attached CASB profile on the access proxy rule. If the CASB profile is not referenced by the rule, the sensor never evaluates the upload, so changing the action alone will not prevent credit card data from leaving.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Fortinet exam blueprint
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