Câu 32: SSCP: System Security Certified Practitioner (SSCP)

Which of the following statements pertaining to firewalls is incorrect?

1. A. Firewalls create bottlenecks between the internal and external network.
2. B. Firewalls allow for centralization of security services in machines optimized and dedicated to the task.
3. C. Firewalls protect a network at all layers of the OSI models. — đáp án hiện tại
4. D. Firewalls are used to create security checkpoints at the boundaries of private networks.