3 methods of authentic'n avail for BitLocker encryption, & describe what’s required for ea.
1. Computr authentic'n-TPM (Trusted Platform Module) chip holds Bitlocker encryption key
2. User Authent'n-startup key can be installed on a flash drive, but this must be installed before computer boots
3. Computer & User Authentic'n- PIN/ password can be required @ every startup in addit'n to TPM