Which command line tool is used for testing latency and the general health of a modem?

The command line tool that is used for testing latency and the general health of a modem is Ping. This tool works by sending Internet Control Message Protocol (ICMP) Echo Request messages to a specific IP address or hostname. If the destination is reachable, it responds with ICMP Echo Reply messages. By measuring the time it takes to receive the response, Ping provides valuable information about the latency between the source and destination. It also indicates whether the modem and the network connection are functioning properly.

Other tools serve different purposes: Tracert traces the route packets take to reach a destination, providing details about each hop along the way. Netstat is used to display active connections and listening ports, making it useful for network troubleshooting but not for latency testing. Ipconfig is primarily used to view and manage the network configuration of network interfaces on a device, not for measuring latency or health of a modem. Therefore, Ping is the most appropriate choice for assessing latency and the overall health of a modem.