Answer:
TNSPING
Step-by-step explanation:
tnsping is a utility, this helps us to determine the service on an Oracle Net network can be reached successfully.
If you want to connect between a client and server, we can use the tnsping utility, in this case, we're going to receive an estimated time around the trip in milliseconds it takes to reach the Oracle service, if it fails, we're going to receive an error message.