How to find the response time of a server ?

We have two ways to find the response time:

1. ICMP Ping : We will execute the following command.
ping <hostname>
based on the time taken for the above command, the response time of the server is measured.

2. If the ICMP Ping fails, we will do a TCP\UDP Port check in the remote system. This is based on the mode of the monitoring you have configured for the remote system. If the mode is "TELNET", we will connect to the port 23 and check whether the system is up. The time taken for connnecting to the above port is taken as Response Time.