Which tool is used to determine reachability and round-trip time using ICMP echo requests?

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Multiple Choice

Which tool is used to determine reachability and round-trip time using ICMP echo requests?

Explanation:
Ping is the tool designed for this purpose. It sends an ICMP Echo Request to a destination and waits for an ICMP Echo Reply. If a reply comes back, the host is reachable; the time between sending the request and receiving the reply is the round-trip time, which gives you a quick measure of latency to that endpoint. This simple, end-to-end test is exactly what ICMP echo requests are for. Other tools differ in their primary use: tracing the path to a destination (which shows per-hop RTT and route details) or performing unrelated tasks like DNS lookups or file transfers, so they aren’t as suited to measuring end-to-end reachability and latency with ICMP echo.

Ping is the tool designed for this purpose. It sends an ICMP Echo Request to a destination and waits for an ICMP Echo Reply. If a reply comes back, the host is reachable; the time between sending the request and receiving the reply is the round-trip time, which gives you a quick measure of latency to that endpoint. This simple, end-to-end test is exactly what ICMP echo requests are for.

Other tools differ in their primary use: tracing the path to a destination (which shows per-hop RTT and route details) or performing unrelated tasks like DNS lookups or file transfers, so they aren’t as suited to measuring end-to-end reachability and latency with ICMP echo.

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