QUIC has ACKS also. It is a connection oriented protocol that can guarantee delivery of packets. QUIC also has a three-way handshake (on new conntections). The

QUIC has ACKS also. It is a connection oriented protocol that can guarantee delivery of packets. QUIC also has a three-way handshake (on new conntections). The equivalent of TCP's SYN, SYN+ACK, ACK, but stacked with the TLS negotiation at the same time. Also, SYN is only used during this handshake in TCP.