IPv4 allows for about 4.3 billion IP addresses to be used on computers, tablets, smartphones, cameras, thermometers, and so on. Since the world ran out of IP addresses, IPv6 is one solution that extends the address space to more than 300 trillion trillion trillion IP addresses. What other systems increase IP address utilization? (Choose two.)

Domain 4: Communication and Network Security Practice Questions
Questions from the following topics are included in this domain:   
Assess secure network design principles.   
Implement secure network design principles.  
Secure network components using network access control devices.   
Implement secure design communication channels.  
Understand data communications and virtualized networks.