How have the IPv4 limitations been solved? (select all that apply) By implementing the IPv6 protocol By creating more IPv4 address By using DNS By using Network Address Translation
The Correct Answer and Explanation is:
The solutions to the limitations of IPv4 are as follows:
- By implementing the IPv6 protocol: IPv6 is the next-generation internet protocol that addresses many of the limitations of IPv4. The most notable improvement is the vastly larger address space. IPv4 can only support around 4.3 billion unique IP addresses, while IPv6 uses 128-bit addresses, allowing for approximately 340 undecillion (3.4×10^38) unique IP addresses, which is more than enough to meet the growing demands of the internet.
- By using Network Address Translation (NAT): NAT allows multiple devices on a local network to share a single public IP address. This is particularly helpful in reducing the number of IP addresses needed by organizations and individuals. NAT helps mitigate the problem of IPv4 address exhaustion, as multiple devices can be connected to the internet through a single IP address.
The other options, however, do not directly solve the limitations of IPv4:
- By creating more IPv4 addresses: This is not a practical solution. The address space of IPv4 is fixed at 32-bits, which provides a maximum of about 4.3 billion addresses. While techniques like private addressing (e.g., using reserved IP ranges) can reduce address consumption, they do not “create more” IPv4 addresses. The inherent limitation is in the design of IPv4 itself.
- By using DNS (Domain Name System): DNS is a system that translates domain names (e.g., www.example.com) into IP addresses. While DNS helps with easier navigation on the internet, it does not address the actual limitation of IPv4 address space. DNS simply maps human-readable domain names to existing IP addresses but does not create or expand the availability of IP addresses.
In summary, the most effective solutions are IPv6 and NAT, while creating more IPv4 addresses or relying on DNS does not directly resolve the fundamental issue of limited address space.
