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101 · Question #652
101 Question #652: Real Exam Question with Answer & Explanation
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
Explanation
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.
Common mistakes.
- B. netstat (likely the intended spelling of 'netstal') displays active connections, listening ports, and interface statistics, but does not generate any ICMP Echo Request messages.
- C. tcpdump is a packet capture and analysis tool used to inspect traffic passively; it does not generate or send ICMP Echo Request messages.
- D. 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
Reference. https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/ping
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