# Q3(b) · Stateful packet filtering

Subject: Computer Networks

Exam: TEE

Reader: https://deep-learning-study-room.vercel.app/cn/#tee/papers/paper-2023-ai-partial/q3b

Canonical: https://deep-learning-study-room.vercel.app/read/cn/tee/papers/paper-2023-ai-partial--q3b/

Exact historical variant. Current-syllabus questions solved; excluded topics and source limitations stated.

### Q3(b). What are the two main data structures used by a stateful packet filter? Explain their purpose. [5 marks]

### Answer

This historical topic is not named in the current six-unit syllabus. It is recorded for a complete paper inventory, but excluded from the required preparation and current-unit mark totals.