NAT is a technique used to do which of the following?
a. Translate external private address to a public address.
b. Associate a single public IP address with many internal addresses.
c. Hide the internal IP infrastructure.
d. Use TCP/UDP ports.
c. Hide the internal IP infrastructure.
Explanation: Network Address Translation (NAT) is a technique used to translate an internal private IP address to a public IP address before the packets leave the local network to the public network. NAT can also be used to hide the internal IP infrastructure of the network. PAT is sometimes referred to as many-to-one NAT and NAT overload because of its capability to translate many IP addresses with a single public IP address or a handful of public IP addresses. PAT accomplishes this by using the TCP/UDP ports.
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