Users on multiple network segments report that they are unable to retrieve email from a server.
Which of the following commands will allow a server technician to ensure that the email service is running on the server?
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A. B. C. D.D.
The correct answer to this question is D. netstat.
Explanation: The netstat command displays active network connections, routing tables, and network protocol statistics. By using the netstat command, a server technician can ensure that the email service is running on the server by checking whether the email service's port is listening for incoming connections.
For example, if the email service is using the Simple Mail Transfer Protocol (SMTP), the server technician can use the following command to check if the SMTP service is running:
luanetstat -an | find "25" This command will display all active network connections and filter the results to show only the connections that are using port 25, which is the default port for SMTP.
In contrast, the other commands listed in the answer choices are used for other network-related tasks: