PCNSA Decryption and Monitoring Practice Question
During a security audit, it is discovered that some internal hosts are using TLS 1.0, which is deprecated. The firewall is configured to decrypt SSL traffic. How can the administrator use the firewall to detect and report these connections without breaking them?
⚠ Common exam trap
Many exam-takers confuse 'TLS Version Check' with a blocking action, assuming that detection requires blocking, or they may incorrectly think that 'No Decrypt' can still detect the TLS version, when in fact decryption must occur to inspect the handshake for version information.
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
✓
Configure a decryption policy rule with action 'Decrypt' and enable 'TLS Version Check' with action 'alert'.
The firewall can decrypt TLS 1.0 traffic (action 'Decrypt') while using the 'TLS Version Check' feature set to 'alert' to detect and log the deprecated protocol without disrupting the connection. This allows the administrator to identify hosts using TLS 1.0 for reporting and remediation, while maintaining business continuity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure a decryption policy rule with action 'Decrypt' and enable 'TLS Version Check' with action 'alert'.
Why this is correct
Alert logs the violation without blocking.
- ✗
Configure a decryption policy rule with action 'No Decrypt' for TLS 1.0 traffic.
Why it's wrong here
Bypasses decryption but does not report the TLS version.
- ✗
Use a Security policy rule to block TLS 1.0 traffic.
Why it's wrong here
Block is too aggressive; need alert first.
- ✗
Configure a decryption policy rule with action 'Decrypt' and enable 'TLS Version Check' with action 'block'.
Why it's wrong here
Block would prevent connections, not just report.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCNSA practice question is part of Courseiva's free Palo Alto Networks 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 PCNSA exam.