This type of backup management provides a continuous on-line backup by using optical or tape "jukeboxes," similar to WORMs (Write Once, Read Many): 

Answer options:

A. Hierarchical Storage Management (HSM).
B. Hierarchical Resource Management (HRM).
C. Hierarchical Access Management (HAM).
D. Hierarchical Instance Management (HIM).

A

Hierarchical Storage Management (HSM) provides a continuous on-line backup by using optical or tape "jukeboxes," similar to WORMs. Source: KRUTZ, Ronald L. & VINES, Russel
D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 71.