Which statement about the protocol monitor is true?

The statement that the protocol monitor covers a range of protocols including IPv6 and ARP is accurate. A protocol monitor's primary function is to analyze and display traffic across various networking protocols, which encompasses both IPv4 and IPv6. This capability is essential as networks increasingly leverage IPv6 due to the exhaustion of IPv4 addresses. Furthermore, ARP (Address Resolution Protocol) plays a crucial role in resolving IP addresses to MAC addresses within local networks, making it significant for monitoring as well.

By understanding the breadth of the protocols monitored, network administrators can gain insights into the overall health and performance of the network, troubleshoot issues, and enhance security measures. This capability demonstrates the importance of monitoring not just the traditional IPv4 traffic but also the more modern protocols that are gaining relevance in the current networking landscape. This aspect reflects a comprehensive approach to network management and security provided by tools that incorporate functionality for a wide array of protocols.