Which is the CORRECT of the 'R' role in a RACI matrix?

What type of change is pre-authorized, low risk, relatively common, and follows a procedure or work instruction?

Identify the missing word in the following sentence.
The purpose of the service configuration management practice is to ensure that accurate and reliable information about the [?], and the CIs that support them, is available when and where it is needed.

Which practice requires skills and competencies related to business analysis, supplier management and relationship management?

Staff in an IT organization are very busy, mostly carrying out tasks that add little or no value to the organization or its customers.
Which guiding principle recommends that the unnecessary work should be eliminated?