Which tool is used to provide a list of open ports on network devices?Question 7Select one:PingWhoisNmapTracert

Problem Breakdown

1. Identify the purpose of the tools listed: Ping, Whois, Nmap, and Tracert.
2. Determine which tool is specifically designed to list open ports on network devices.

Relevant Concepts

• Ping: A network utility that tests the reachability of a host on an Internet Protocol (IP) network.
• Whois: A query and response protocol used for querying databases that store registered users or assignees of a domain name or an IP address.
• Nmap: A network scanning tool used to discover hosts and services on a computer network by sending packets and analyzing the responses.
• Tracert: A utility that shows the path that a packet takes to a destination, usually used for diagnosing network routing issues.

Analysis and Detail

1. Ping does not provide information about open ports; it only checks if a particular IP address is reachable.
2. Whois does not assess the status of ports but retrieves registration information for domains.
3. Nmap is specifically designed for scanning open ports on a network device, making it the most appropriate tool in this context.
4. Tracert is again focused on the route packets take and does not relate to open ports.

Verify and Summarize

Among the tools listed, Nmap is the only one that can identify open ports on network devices.

Final Answer

Nmap