What functionality does AirPlay provide?

AirPlay provides the functionality of streaming video and other content wirelessly from an Apple device to compatible devices, such as Apple TV, speakers, or other AirPlay-enabled devices. This technology allows users to share their audio and video content seamlessly, enhancing the viewing or listening experience without the need for physical connections like HDMI cables.

This capability makes it convenient for users to display photos, videos, music, and even mirror their device screens on larger displays. For instance, when using an iPhone or iPad, a user can simply select the AirPlay option to stream a movie to their Apple TV or play music through a set of AirPlay-compatible speakers, without the hassle of wires.

The other choices highlight functionalities that are not related to AirPlay. For example, remote file access pertains to services like iCloud; direct installation of apps on Apple TV relates to the App Store, and editing documents remotely is associated with cloud-based applications and services, rather than streaming via AirPlay. Thus, the correct answer focuses specifically on AirPlay's core feature of wireless streaming.