What is the push mechanism that ensures published Products become visible within a few seconds?

The Management server stores the Product and API configuration information, and logically the Developer Portal is a view onto this data.

What is the push mechanism that ensures published Products become visible within a few seconds?
A . Webhooks
B . Loopbacks
C . Background sync
D . Asynchronous calls

Answer: B

Explanation:

Reference https://www.ibm.com/support/knowledgecenter/en/SSMNED_5.0.0/ com.ibm.apic.apionprem.doc/publishing_a_product.html