101 · Question #652
What command sends an "Echo Request' message and expects an "Echo Reply" message?
The correct answer is A. ping. The ping command is the standard network utility that sends ICMP Echo Request messages and waits for ICMP Echo Reply responses to test host reachability.
Question
What command sends an "Echo Request' message and expects an "Echo Reply" message?
Options
- Aping
- Bnetstal
- Ctcpdump
- Decho
How the community answered
(56 responses)- A89% (50)
- B5% (3)
- C2% (1)
- D4% (2)
Why each option
The ping command is the standard network utility that sends ICMP Echo Request messages and waits for ICMP Echo Reply responses to test host reachability.
The ping utility sends ICMP Type 8 (Echo Request) packets to a destination and expects ICMP Type 0 (Echo Reply) responses, as defined in RFC 792. This makes ping the direct and only correct answer, as it is specifically designed around this Echo Request and Echo Reply mechanism to measure reachability and round-trip latency.
netstat (likely the intended spelling of 'netstal') displays active connections, listening ports, and interface statistics, but does not generate any ICMP Echo Request messages.
tcpdump is a packet capture and analysis tool used to inspect traffic passively; it does not generate or send ICMP Echo Request messages.
The echo command repeats text to the local terminal standard output and does not transmit any network packets to a remote host.
Concept tested: ICMP Echo Request and Reply mechanism using ping
Source: https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/ping
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