CompTIA Network+ (N10-009) — Question 270

Which of the following is most commonly associated with many systems sharing one IP address in the public IP-addressing space?

Answer options

• A. PAT
• B. NAT
• C. VIP
• D. NAT64

Correct answer: A

Explanation

The correct answer, PAT (Port Address Translation), is used to allow multiple devices on a local network to share a single public IP address by differentiating them through port numbers. NAT (Network Address Translation) is a broader term that includes PAT but does not specifically refer to the port differentiation. VIP (Virtual IP) and NAT64 serve different purposes, with VIP typically used for load balancing and NAT64 facilitating IPv6 to IPv4 translation.