--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5544187614 dns-udp-queries-received-ipv6: 1404270856 dns-tcp-queries-received-ipv4: 318107743 dns-tcp-queries-received-ipv6: 167945215 dns-udp-responses-sent-ipv4: 5536117718 dns-udp-responses-sent-ipv6: 1436411904 dns-tcp-responses-sent-ipv4: 306504114 dns-tcp-responses-sent-ipv6: 175766853