What does PAT stand for?

What does PAT stand for?

• A. Public Address Translation
• B. Port Assignment Translation
• C. Protocol Address Translation
• D. Port Address Translation

Answer: (D)

Port Address Translation is the term PAT stands for. It’s a form of NAT that lets many devices on a private network share a single public IP by using different source port numbers for each connection. When a device sends traffic out, the NAT device rewrites the source address to the public IP and assigns a unique port, so multiple internal hosts can use the same public IP simultaneously without confusion. Incoming replies are matched to the correct internal device by that port, enabling proper delivery. The other phrases don’t reflect the standard terminology for this mechanism. Public Address Translation isn’t the recognized name, Protocol Address Translation refers to a different concept, and Port Assignment Translation isn’t the standard term used here.

Port Address Translation is the term PAT stands for. It’s a form of NAT that lets many devices on a private network share a single public IP by using different source port numbers for each connection. When a device sends traffic out, the NAT device rewrites the source address to the public IP and assigns a unique port, so multiple internal hosts can use the same public IP simultaneously without confusion. Incoming replies are matched to the correct internal device by that port, enabling proper delivery. The other phrases don’t reflect the standard terminology for this mechanism. Public Address Translation isn’t the recognized name, Protocol Address Translation refers to a different concept, and Port Assignment Translation isn’t the standard term used here.