Palo Alto Networks (PANW) Certified Cybersecurity Entry-level Technician (PCCET) Practice Exam

Which 32-bit logical address is the most widely deployed version of IP?

1. IPv6

2. IPv5

3. IPv4

4. IPv3

The correct answer is: IPv4

The most widely deployed version of IP is IPv4, which is characterized by its use of a 32-bit logical address. This version was developed in the early 1980s and has been the predominant protocol used for routing traffic on the internet for several decades. The 32-bit address space allows for approximately 4.3 billion unique IP addresses, which was adequate for the initial growth of the internet. IPv4 is foundational to the basic structure of the internet, allowing devices to communicate and connect across different networks. Its widespread adoption has led to its presence in virtually all aspects of internet communication. Although newer versions like IPv6 have been designed to address limitations such as the exhaustion of addresses, IPv4 remains in extensive use, often coexisting with IPv6 in various network environments through techniques such as dual-stack implementations. Understanding the legacy and ongoing relevance of IPv4 is crucial for those studying cybersecurity and networking fundamentals. The other versions listed, including IPv3, IPv5, and IPv6, do not share the same level of deployment and support. IPv6, while increasingly important, is still in the process of being adopted globally.