"Big Data" is a term used when there is a large amount of: Unstructured data Information transparency Deduplication encryption The purpose of a digital signature is to: validate that the message was sent by the purported sender ensure that the message was delivered to the purported receiver have an electronic version of the signature encrypt the document Refers to all data in computer storage while excluding data that is traversing a network or temporarily residing in computer memory to be read or updated Transparency System dependence Data at rest Information redundancy