Explanation
If you have an existing knowledge base and you would like to migrate that content into a knowledge base, you must create specific Content Types for that content to migrate to.
Before you migrate your knowledge base, create the following Content Types:
C: HTML - These answers represent HTML content. You create an HTML article by entering text in the Summary, Question, and Answer fields on the Add Content page.
D: URL - These answers represent URLs to external content. You create a URL article by entering the URL of the document that is to be the answer source for the given question in the URL field of the Add Content page.
The URL must be to one specific page and not to a page containing links to additional sources or external collections. It is also important to enter a descriptive Summary and Question as Knowledge Advanced uses the information in these two fields when conducting internal searches for documents. For customer searches, Knowledge Advanced also indexes the destination URL so it can be searched.
E: Attachment - These answers represent standalone documents attached to the answer. You create an attachment article, select the attachment to use from the Attachment link on the Add Content page.
FAQ - These answers represent frequently asked questions.
KCS - These answers represent similar content from KSC articles.
Manual - These answers represent application manuals.
References:
https://docs.oracle.com/cloud/may2017/servicecs_gs/FAUKA/Content_Authoring.htm#FAUKAcontent_authorin

Explanation
The Knowledge Advanced Task Management facility automatically generates tasks based on configured workflow processes and content life cycle events.
References:
Oracle Service Cloud, Knowledge Advanced User Guide, Release May 2017, page 14
https://docs.oracle.com/cloud/november2016/servicecs_gs/FAAKA/Content_Management.htm

Explanation
A docked filter is a run-time selectable filter or output variable that is added to the top of a report. Docked filters let report users select different run-time filter values and output variablesin the report, bypassing the Search window.

Explanation
ANS_NEW_INC_DURATION denotes the number of days that the solved count of new answers will not be aged (reduced).

Explanation
Chaining is always used together with batching. A batch operation includes multiple target operations that each can take a homogeneous or heterogeneous list of business objects.
References:
https://docs.oracle.com/en/cloud/paas/integration-cloud-service/cccdg/batch-and-bulk-operations.html