--- version: rssac002v3 service: a.root-servers.net start-period: '2021-07-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5851922579 dns-udp-queries-received-ipv6: 1424830731 dns-tcp-queries-received-ipv4: 286435519 dns-tcp-queries-received-ipv6: 96779305 dns-udp-responses-sent-ipv4: 5687456126 dns-udp-responses-sent-ipv6: 1422098233 dns-tcp-responses-sent-ipv4: 275773651 dns-tcp-responses-sent-ipv6: 96693807