Under the National Institute of Standards and Technology (NIST) impact descriptions in the course material, which rating describes a severe or catastrophic effect, such as loss of a primary function?

### Why this is right The National Institute of Standards and Technology (NIST) description labels severe or catastrophic effects as High. Loss of a primary function is an example of that level. ### The concept Impact describes the seriousness of the consequences if a threat event occurs. High covers severe effects, such as major financial loss or severe harm to individuals. Moderate describes serious effects, including significantly reduced operations. Low describes limited effects, such as minor financial loss or a noticeable but limited reduction in operations. ### The other options - **A. Low**: This is for limited effects, so it understates the severity described. - **B. Moderate**: This covers serious effects, but not the severe or catastrophic examples in the question. - **D. Very Low**: The course material uses Very Low as a likelihood level, not as one of the stated impact categories. ### Terms - **National Institute of Standards and Technology (NIST)**: The organization whose risk guidance supplies the impact descriptions used in the material. - **Impact rating**: A category describing the seriousness of potential harm. ### Remember Severe or catastrophic consequences correspond to High impact.