Considere o seguinte texto: Nowadays, firewalls are way...

Considere o seguinte texto:

Nowadays, firewalls are way more sophisticated than they used to be. They are now capable of inspecting the application-level protocols and are often not only deployed at the forefront of the infrastructure but also between each component, to monitor and limit unauthorized accesses.

For the same reason, some container orchestrator tools (such as $\underset{......}{I}$ , but also the public cloud providers) offer the possibility to implement the so-called network policies, which are essentially $\underset{......}{\mathrm{II}}$ acting as a network firewall, hence not allowing (or dropping) unwanted network connections. Firewalls can be hardware appliances (with major vendors including Cisco and Check Point, among others), or even software distributions (such as PFSense and Zeroshell).

(Adaptado de: BONOCORE, Giuseppe. Hands-On Software Architecture with Java. Packt Publishing, 2022)

As lacunas I e II devem ser preenchidas, correta e respectivamente, com