my understanding is that it addresses the handling of the inbound questions concerning the open source parts of the Supplied Software.

Assume you are using some GPLv2 licensed code and offer to hand over the sources attached with that license. You will need an interface with the external world, to receive and reliable process the request.

The same applies to questions - and here you do good to make sure the process is well known across the organisation -  by potential notifications of infringements through the Supplied Software. Assume someone wants to contact you, because he thinks, the Supplied Software is non-compliant with his view, how the components should be treated/handled/documented… Having a sound procedure in place allowing to record, understand and securely process this inquiry will help to protect the company from potential damage.

I hope this answers your question?