Which command would you use to display all current TCP/IP connections and listening ports?

The command that displays all current TCP/IP connections and listening ports is Netstat. This utility provides detailed information about network connections, including active TCP connections, the protocol being used, local and remote addresses, and the state of the connections. It is particularly useful for diagnosing network issues, monitoring network traffic, and understanding how your system interacts with the network.

In contrast, Tracert is a diagnostic tool used to trace the route packets take to reach a destination host, providing insights into the hops along the way rather than the actual connections. Ipconfig is a command used on Windows to display and manage the IP configuration of the machine, showing details like the IP address, subnet mask, and default gateway, but does not provide information on active connections or listening ports. IFconfig serves a similar purpose on Unix-like systems, displaying the network interfaces and their configurations, but does not show the status of connections. Therefore, Netstat is the appropriate choice for displaying all current TCP/IP connections and listening ports.