Cisco Certified Support Technician (CCST) Networking Practice Exam

The command used to verify the connectivity between two hosts in a network is "ping." When you execute this command, it sends Internet Control Message Protocol (ICMP) Echo Request messages to the target host. If the target host is reachable and active, it responds with ICMP Echo Reply messages. This process allows you to determine whether the network path to the host is operating correctly and whether the host is present on the network.

The ping command also provides information about the round-trip time for messages sent to the destination, which can help assess the quality of the network connection. In summary, ping is essential for troubleshooting network connectivity issues, and it serves as a fundamental tool in network diagnostics.