A security administrator would like to protect data on employees’ laptops. Which of the following encryption techniques should the security administrator use?

Full disk encryption (FDE) is the most appropriate technique to protect data on employees' laptops because it encrypts the entire storage device, ensuring all data at rest is secured. If a laptop is lost or stolen, the data remains unreadable without the correct decryption key. Partition encryption only secures specific partitions, leaving other data vulnerable. Asymmetric encryption is primarily used for secure communication and digital signatures, not for encrypting entire disks. Database encryption secures data within a database, which is a specialized use case and doesn't protect all data on a laptop.