--- version: rssac002v4 service: a.root-servers.net start-period: '2022-06-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5901223037 dns-udp-queries-received-ipv6: 1574189506 dns-tcp-queries-received-ipv4: 377911715 dns-tcp-queries-received-ipv6: 62082029 dns-udp-responses-sent-ipv4: 5607508725 dns-udp-responses-sent-ipv6: 1572640355 dns-tcp-responses-sent-ipv4: 313953943 dns-tcp-responses-sent-ipv6: 62226078