Not sure about the RADIUS server, but connections to the CA use TLS for SCEP and/or ACME DA so the CA root cert needs to be trusted for TLS. There may be some way to configure more narrow trust for just this one interaction, but I'm not aware of any such mechanism in the current releases of macOS/iOS/iPadOS/tvOS.
Not sure about the RADIUS server, but connections to the CA use TLS for SCEP and/or ACME DA so the CA root cert needs to be trusted for TLS. There may be some way to configure more narrow trust for just this one interaction, but I'm not aware of any such mechanism in the current releases of macOS/iOS/iPadOS/tvOS.