Final answer:
A design specification created by a defense contractor can be classified as either CUI or FCI.
Step-by-step explanation:
A design specification created by a defense contractor can be classified as Controlled Unclassified Information (CUI) or Federal Contract Information (FCI).
CUI refers to unclassified information that requires safeguarding and dissemination controls, as defined by the U.S. government. It includes sensitive information related to defense, intelligence, and other government contracts.
FCI, on the other hand, specifically pertains to information created by or for the government under a contract, and it may include sensitive information that is not publicly available.