Cisco Certified Network Associate (200-301 CCNA) – Question144

Which two IP addressing schemes provide internet access to users on the network while preserving the public IPv4 address space? (Choose two.)

A. IPv6 addressing
B. PAT with private internal addressing
C. single public Class A network
D. private networks only
E. custom addresses from ARIN

Correct Answer: AB

Explanation:

Explanation:
PAT with private internal addressing is the usual method of allowing Internet access while preserving IPv4 addresses. Another alternative is using IPV6, which will allow internet access without using any IPv4 addresses.
The other answer choices will consume a great deal of public IPV4 addresses, or will not allow for internet access.