Explanation
You can define rollup levels in a report to group data beneath headings in the report. You can add additional rollup levels to further break down the data under each heading by grouping data under sub-headings.
Usingrollups, you can group rows in a report that share the same value in the columns you select for the rollup levels. For example, you could add rollups to an incident report to group incidents by their status, and then add an additional rollup level to groupthe incidents that have the same status by their assigned staff account.
References:
https://docs.oracle.com/cloud/february2017/servicecs_gs/FAMUG/_analytics.htm#FAMUGae1133175

Explanation
Knowledge Advanced uses Products and Categories hierarchies that you define for your Service Cloud environment, and automaticallysynchronizes any changes you make to the Product hierarchy.
You manage users through roles, which control the level of management access you have to Knowledge Advanced, the general authoring abilities you have on a particular Content Type, and what tasksyou can perform in a workflow. Users are assigned either Console roles or Web roles.
References:
Oracle Service Cloud, Using Knowledge Advanced, Release May 2016, pages 28, 45

Explanation
D: A workflow consists of one or more steps. Each step defines a task that is assigned to a user or team of users, and the task assignment appears in the user's Inbox in Knowledge Advanced.When the task is completed, the user can either:
E: A workflow process is a sequences of steps, such as creating, editing, translating, reviewing, and approving, that you can define to enforce specific content management procedures for your organization.
References:
Oracle Service Cloud, Knowledge Advanced Administration Guide, November 2016, page 4

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