Which of the following commands is primarily used to display network connections and listening ports?

The command that is primarily used to display network connections and listening ports is Netstat. This command provides detailed information about the network protocols in use, including active connections, ports that are open, and the status of those connections. It allows you to see which network services are listening for incoming connections and can also display statistics about network interfaces.

Using Netstat can be crucial for diagnosing network issues, as it helps identify if certain ports are being used as expected, whether there are unwanted services listening on your machine, or if there are any unusual connections that may indicate security concerns. The information provided by this command can also help in network optimization and troubleshooting.

In contrast, Ping is mainly for checking the reachability of a host on a network. Ipconfig is used to display network configuration details such as the IP address, subnet mask, and default gateway of your system. Tracert, or traceroute, tracks the path your data takes to reach a destination, providing details on each hop but not specifically focusing on connections and listening ports. Thus, Netstat is the most relevant command for displaying network connections and listening ports.