(A) Publisher applications can send messages to a subscriber.
(B) Subscriber applications can subscribe to a topic to receive the message when the subscriber is ready.
(C) Publisher applications can receive messages from a topic.
(D) Subscriber applications can send messages on a topic directly to publisher applications.
This question is a part of the GCP Big Data and Machine Learning Assessment section of the Google Cloud Platform Business Professional Accreditation. You can find answers to all the questions asked in this exam in our GCP Big Data and Machine Learning Assessment Answers page and Google Cloud Platform Business Professional Accreditation Answers page.