# Q7(d) · NAT translated flow

Subject: Computer Networks

Exam: TEE

Reader: https://deep-learning-study-room.vercel.app/cn/#tee/papers/paper-2023-jan-ai-reexam/q7d

Canonical: https://deep-learning-study-room.vercel.app/read/cn/tee/papers/paper-2023-jan-ai-reexam--q7d/

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

### Q7(d). Host 10.0.0.1:2020 communicates with web server 128.119.40.186:80. NAT maps public 138.76.29.7:5051 to 10.0.0.1:2020. At point D (return packet after translation, inside the LAN), find source/destination IP addresses and ports. [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.