Which protocol emphasizes reduced latency over reliability?

TCP emphasizes reliability through a three-way handshake, acknowledgments, sequencing, and retransmission, all of which introduce latency overhead rather than minimizing it.

UDP (User Datagram Protocol) is a connectionless protocol that performs no handshaking, acknowledgment, sequencing, or retransmission, eliminating the overhead that causes latency in TCP. This makes UDP ideal for latency-sensitive applications such as real-time video, VoIP, and online gaming where occasional packet loss is preferable to the delays introduced by error recovery mechanisms.

GRE (Generic Routing Encapsulation) is a tunneling protocol used to encapsulate packets inside a virtual point-to-point link and is not designed around a latency-versus-reliability tradeoff.

RSVP (Resource Reservation Protocol) is a signaling protocol used to reserve network bandwidth and QoS resources along a path, not a transport protocol with a latency-versus-reliability design goal.