Is is possible to perform stream processing/build a topology in way that would allow Processor to stream from a Topic A on Broker A within Cluster A and write results to Topic B on Broker B within Cluster B.
(Topic A - Broker A - Cluster A) belong to Department A
(Topic B - Broker B - Cluster B) belong to Department B.
Department A writes its feeds to Cluster A and allows other Departments such as Department B to consume those feeds and stay in sync. Department A will not allow Department B to publish to its clusters/brokers/topics.