Question

Why is NAT necessary for traffic from private IP addresses?

Private IP addresses are non-routable
Private IP addresses need a proxy to communicate with other networks
To save on the number of private IP addresses used in a network
To save on the number of public IP addresses used in a network

Answer 1

To save on the number of public IP addresses used in a network

Step-by-step explanation:

NAT is the short form of Network Address Translation. The purpose of NAT is to reduce the use of No. of public IP address. Each organization has their own network, They have their own IP Ip address can be called as Private IP address of the company. The company can access the internet on all their devices by using multiple private addresses. While on the other hand, Only one or two IP assigned to the company by utility.

The company have only one Public IP and have their own set of IP's to provide internet to all the users inside the company. This is called NAT. With the help of this service use of public IP address is reduced.