Communications with the webMethods Integration Server is handled via listeners. On which ports can the webMethods Integration Server have an active listener?
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5555, 8021, 80, and/or 443 only
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Port numbers greater than or equal to 1000 only
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Any valid port number not already in use
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Ports 21, 80, 443, and any port number above 1000
To solve this question, the user needs to have knowledge of webMethods Integration Server and how it handles communications.
Option A is incorrect. While ports 5555, 8021, 80, and 443 can be used for listeners, they are not the only ports available for use.
Option B is incorrect. Port numbers greater than or equal to 1000 are not the only ports available for use.
Option C is correct. The webMethods Integration Server can have an active listener on any valid port number that is not already in use.
Option D is incorrect. While ports 21, 80, and 443 can be used for listeners, any port number above 1000 is not guaranteed to be available for use.
Therefore, the answer is: C. Any valid port number not already in use.
webMethods Integration Server listeners are configurable and can be bound to essentially any available TCP port the administrator chooses, not restricted to a fixed list or a numeric floor. The commonly used defaults (like 5555 for the primary listener) are just conventions, not hard limits on what ports can be used. Restricting to ports above 1000 or to a specific set would prevent legitimate configurations many deployments actually use.