Which of the following best describes IPv6?

IPv6, or Internet Protocol version 6, is the most up-to-date version of the Internet Protocol that is designed to replace IPv4 as the primary method for assigning IP addresses. This development arises from the expanding demand for unique IP addresses due to the growing number of devices connected to the internet.

IPv6 offers a vastly larger address space compared to its predecessor—enabling trillions of unique addresses—ensuring that there will be enough addresses to accommodate the future needs of internet-connected devices. In addition to providing more addresses, IPv6 includes improvements in routing efficiency and security features that are not present in IPv4.

The other options are inaccurate portrayal of IPv6. It is certainly not outdated; rather, it embodies the current and future framework for internet connectivity. Also, it is not a temporary solution, as it is intended to support the long-term progression of the internet. Lastly, IPv6 is not limited to internal networks; it is designed for global internet communication, making it globally applicable. Thus, the characterization of IPv6 as the current standard for internet addressing protocols is clear evidence of its significance and utility in modern networking.