When implementing video streaming from the Internet to an always on device, it is best to employ which of the following services to minimize latency issues?

QoS allows network administrators to classify and prioritize traffic types, ensuring that latency-sensitive data such as video streams receives preferential treatment over less time-critical traffic. This directly reduces buffering, jitter, and playback interruptions for always-on streaming devices.

EIGRP is a Cisco routing protocol used for path selection between routers and does not directly manage per-flow traffic prioritization.

PPTP is a VPN tunneling protocol used for creating encrypted tunnels and has no traffic prioritization function.

OSPF is a link-state routing protocol for determining routing paths and does not prioritize specific traffic types.