PCNSE Practice Test

Explanation:
The two key exchange algorithms that consume the most resources when decrypting SSL traffic are ECDHE and DHE. These are both Diffie-Hellman based algorithms that enable perfect forward secrecy (PFS), which means that they generate a new and unique session key for each SSL/TLS session, and do not reuse any previous keys. This enhances the security of the encrypted communication, but also increases the computational cost and complexity of the key exchange process. ECDHE stands for Elliptic Curve Diffie-Hellman Ephemeral, which uses elliptic curve cryptography (ECC) to generate the session key. DHE stands for Diffie-Hellman Ephemeral, which uses modular arithmetic to generate the session key. Both ECDHE and DHE require more CPU and memory resources than RSA, which is a non-PFS algorithm that uses public and private keys to encrypt and decrypt the session key.
References:
Key Exchange Algorithms, Best Practices for Enabling SSL Decryption, PCNSE Study Guide (page 60)

Explanation:
When managing firewalls with Panorama, configurations can be pushed from Panorama templates to managed firewalls. However, there are scenarios where specific settings need to be overridden on the local firewall level due to unique requirements or exceptions.
B. The modification will not be visible in Panorama:
When an override is made directly on the firewall, this change is not automatically reflected back in Panorama's templates or device groups. The local configuration on the firewall will take precedence over the Panorama pushed configuration for the overridden settings, but these local changes will not be visible in the Panorama interface. This means that while Panorama maintains central control and visibility over the bulk of the configuration, it does not have visibility into local overrides made directly on the firewalls.
This distinction is crucial for auditors and administrators to understand, as it impacts how configurations are managed and synchronized between Panorama and the individual firewalls. Local overrides provide flexibility but require careful management to ensure consistency and compliance with security policies.

Explanation: Use the dynamic user group in a policy to regulate traffic for the members of the group. You will need to configure at least two rules: one to allow initial traffic to populate the dynamic user group and one to deny traffic for the activity you want to prevent (in this case, questionable-activity). To tag users, the rule to allow traffic must have a higher rule number in your rule base than the rule that denies traffic.