Which item is a form of credential a TA handles?

• A. CAC tokens
• B. Social Security numbers
• C. Phone numbers
• D. Access codes

Answer: (A)

Credentials are items used to prove identity when accessing systems. A CAC token is a physical smart card issued to authorized personnel that stores cryptographic keys and certificates and is used with a PIN to authenticate to DoD networks. As a tangible credential, it is something a trusted agent handles, issues, and tracks for access control. Social Security numbers are identifiers and protect PII; they aren’t used as a login credential in TA workflows. Phone numbers are contact details, not authentication credentials. Access codes refer to things you type or generate to gain access, but the CAC token uniquely represents a portable hardware credential that a TA works with.