--- version: rssac002v3 service: a.root-servers.net start-period: '2021-04-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6067794078 dns-udp-queries-received-ipv6: 1411952134 dns-tcp-queries-received-ipv4: 309037299 dns-tcp-queries-received-ipv6: 92997080 dns-udp-responses-sent-ipv4: 5919419130 dns-udp-responses-sent-ipv6: 1410397916 dns-tcp-responses-sent-ipv4: 298020233 dns-tcp-responses-sent-ipv6: 93546456