--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5548668005 dns-udp-queries-received-ipv6: 1041137307 dns-tcp-queries-received-ipv4: 280252647 dns-tcp-queries-received-ipv6: 110028248 dns-udp-responses-sent-ipv4: 5389457490 dns-udp-responses-sent-ipv6: 1039035726 dns-tcp-responses-sent-ipv4: 269060058 dns-tcp-responses-sent-ipv6: 110463206