When you create an adjustment layer-like the Levels adjustment layer-it is created automatically with a(n) ____.

What is meant by the term usability?

A. how often a security solution or device must be updated and how long the updates take B. the amount or percentage of time a computer system is available for use C. the probability that a failed security solution or device can be restored to its normal operable state within a given timeframe using the prescribed practices and procedures D. making a security solution or device easier to use and matching the solution or device more closely to organizational needs and requirements

The OSI security architecture focuses on security attacks, __________, and services.

Fill in the blank(s) with the appropriate word(s).