--- version: rssac002v4 service: a.root-servers.net start-period: '2022-05-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5167443029 dns-udp-queries-received-ipv6: 1662395711 dns-tcp-queries-received-ipv4: 349285908 dns-tcp-queries-received-ipv6: 78508386 dns-udp-responses-sent-ipv4: 5020347945 dns-udp-responses-sent-ipv6: 1667680943 dns-tcp-responses-sent-ipv4: 328590247 dns-tcp-responses-sent-ipv6: 78482951