When configuring the MID Server Service Settings, which of the following is not a valid...

In configuring the MID Server Service Settings in ServiceNow, the MID Server name must adhere to certain naming conventions. Among the options provided, "mid server1" (D) is not a valid MID Server name because it contains a space. MID Server names should not include spaces or special characters that are not typically used in naming conventions. Names like "mymidserver1," "mid.server1," and "midserver1" are more in line with the standard naming practices. References = ServiceNow MID Server documentation, specifically the sections detailing MID Server configuration and naming conventions.