Systems Security Certified Practitioner (SSCP) — Question 10
In stateful inspection firewalls, packets are:
Answer options
- A. Inspected at only one layer of the Open System Interconnection (OSI) model
- B. Inspected at all Open System Interconnection (OSI) layers
- C. Decapsulated at all Open Systems Interconnect (OSI) layers.
- D. Encapsulated at all Open Systems Interconnect (OSI) layers.
Correct answer: B
Explanation
The correct answer is B because stateful inspection firewalls evaluate packets at all layers of the OSI model, allowing them to monitor the state of active connections. The other options are incorrect as they either limit inspection to one layer or incorrectly describe the processes of decapsulation and encapsulation.