CompTIA 220-802 Certification Practice Test

Answer: C - Network address translation (NAT) allows an organization to present a single address to the Internet.

Key Takeaway: NAT obscures an internal network’s structure sothat all traffic appears to outsiders as if it originated from the gateway machine. Network address translation involves re-writing the source and/or destination IP addresses and usually also the TCP/UDP port numbers of IP packets as they pass through the NAT. The NAT router maps all inbound and outbound requests and maintains a table for returned messages.