PING

A network diagnostic tool that sends a signal to check

• if a server/device is online and responding.
• Tests network connectivity.
• Measures response time (latency).
• Uses ICMP protocol.
• Does not check specific application ports.

Purpose: Check ALIVE/DEAD status only

VISUAL FLOW:

Reply received → Server/network reachable.

No reply → Network issue or ping blocked.

ping google.com

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TELNET

A network tool that attempts to open a connection to a specific server on a specific PORT to verify if the port is open and the service is running.

Purpose: Check if specific PORT is OPEN and ACCESSIBLE

VISUAL FLOW:

telnet google.com 80

Overall Comparison: