Which of the following is a type of optical media?

The Digital Versatile Disc (DVD) is a type of optical media because it uses laser technology to read and write data. Optical media is characterized by its ability to store information in the form of pits and lands on a disc surface, which is read by a laser. DVDs are widely used for storing video, audio, and data due to their higher storage capacities compared to traditional CDs.

In contrast, Solid State Drives (SSDs) utilize flash memory and do not rely on optical technology, as they store data electronically without any moving parts. Universal Serial Bus (USB) pertains to a standardized interface for connecting various devices and transferring data, but it is not a medium for storing data itself. Network Attached Storage (NAS) refers to a dedicated file storage device that connects to a network and allows multiple users and devices to access data, but again, it is not classified as optical media. Thus, the designation of a DVD as a type of optical media is accurate, reflecting its fundamental characteristics and functionality.