An important principle in information security is the concept of layers of security, which is often referred to as layered security, or defense in depth. Which of the following is not an example of a layer of security?

Available options in question are

Answer is : Control Standard. It is not an example of layer of security.

Explanation:

Defense in depth consists of three major domains like physical, technical and administrative. Layered Security will consists of best practices by combining multiple  security methods to mitigate vulnerabilities and attack vectors. It is used to protect resources at different levels.  

Control Standard is not an example of Layered Security.

answer; ///i believe that the correct answer is (b) to both side choose a fair and impartial jury;