What is this illustration from?

Which of the following terms best describes the process of removing restricted classification levels? (from textbook)

Activity:  As a security risk analyst, you are gathering evidence of water related dangers to data center equipment.  One article that you found reports of a recent storm titled, ‘Frozen Pipes in Texas’.   You are concerned that this represents a realistic hazard to your equipment. Using the above illustration as your reference, what step and task best encapsulates the above activity?

Which regulation requires that companies must submit an annual statement of compliance with the regulation?

  Figure 5-1 from the textbook shows __________________________________________________________.  

The two missing states are level 1 or _________________ and level 4 or _____________________.  

“Responsible for measuring compliance with Board-approved policies and to ensure that controls are functioning as intended.” What organizational role fulfills this function?

     The above image is from Chapter 3 and it illustrates what attack on availability?

The Policy Hierarchy defines the relationship between documents as:

Sentence 1:  A powered working-end is not like a magic wand– a quick swipe of the working-end over the tooth surface will be ineffective. Sentence 2: Rather, correct technique requires many slow, repetitive instrumentation strokes to accomplish calculus removal.