Typically, when an organization purchases internet access from an internet service provider (isp), the isp will grant it
(a) no public ip address at all
(b) a single public ip address that it can use for nat
(c) a number of public ip addresses that it can use for nat
(d) virtually an unlimited numberof public ip address that it can use for nat

(B) A single public IP address that it can use for NAT

Explanation:

Because the IPV4 IP protocol is still used today, the number of available IP addresses is limited (only 4,294,967,296 addresses in the world), for this reason, the most correct practice is the assignment of a single public IP to those companies that acquire services from an ISP, with some few exceptional cases of companies that own several.

So that the company's addressing can be executed successfully, the use of NATs is enabled, this allows the translation of network addresses, allowing the company to have as many private networks as necessary and that these can be communicated Correctly with the global network, the Internet, through the public IP of the company.

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