Explanation
The biggest challenge for properly using any programmatic tools in data discovery is the actual quality of the data, including the data being uniform and well structured, labels being properly applied, and other similar facets. Without data being organized in such a manner, it is extremely difficult for programmatic tools to automatically synthesize and make determinations from it. The overall quantity of data, as well as the number of sources, does not pose an enormous challenge for data discovery programs, other than requiring a longer time to process the data. The language of the data itself should not matter to a program that is designed to process it, as long as the data is well formed and consistent.

Explanation
Data discovery is a term used to describe the process of identifying information according to specific traits or categories. The rest are all methods for obscuring data.

The cloud service integrator is the official role that involves connecting and integrating existing systems and services with a cloud environment. This may involve moving services into a cloud environment, or connecting to external cloud services and capabilities from traditional data center-hosted services.

Generators are considered an external redundancy to a data center. Power distribution units (PDUs), storage systems, and power feeds to racks are all internal to a data center, and as such they are considered internal redundancies.