350-701 Network Security Practice Question
A Cisco FTD is configured with SSL/TLS inspection using the 'decrypt-known-key' method. Which traffic can be decrypted with this method?
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
✓
Traffic to internal servers whose private key is imported into FTD
Decrypt-known-key is used when the FTD has the server's private key, typically for internal servers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Traffic to internal servers whose private key is imported into FTD
Why this is correct
This method requires the server's private key to decrypt.
- ✗
Traffic to any website on the internet
Why it's wrong here
The FTD does not have private keys for external servers.
- ✗
Traffic using self-signed certificates only
Why it's wrong here
Self-signed certificates still require the private key.
- ✗
All SSL traffic regardless of certificate
Why it's wrong here
Only traffic where the private key is known can be decrypted.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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