Question

What NAT variation automatically assigns an inside global address from a pool of available addresses?

a) Dynamic NAT
b) Static NAT
c) PAT (Port Address Translation)
d) NAT64

Answer 1

The NAT variation that automatically assigns an inside global address from a pool of available addresses is Dynamic NAT, which is useful when multiple private IP addresses need to be mapped to the public network intermittently.

Step-by-step explanation:

The variation of Network Address Translation (NAT) that automatically assigns an inside global address from a pool of available addresses is Dynamic NAT. This type of NAT allows multiple private IP addresses to be mapped to a pool of public IP addresses on a first-come, first-served basis, without the need for a one-to-one correspondence between private and public addresses. Unlike Static NAT, which maps a single private IP address to a single public IP address, Dynamic NAT allows for address conservation and is particularly useful for networks where users require intermittent access to the Internet. PAT (Port Address Translation), on the other hand, assigns multiple private IP addresses to a single public IP address using different port numbers to distinguish between the connections. NAT64 is used for translating IPv6 addresses to IPv4 addresses and is not relevant in this context.