--- version: rssac002v3 service: a.root-servers.net start-period: '2019-12-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6081606678 dns-udp-queries-received-ipv6: 885364906 dns-tcp-queries-received-ipv4: 214550388 dns-tcp-queries-received-ipv6: 69431918 dns-udp-responses-sent-ipv4: 5898093043 dns-udp-responses-sent-ipv6: 878089408 dns-tcp-responses-sent-ipv4: 211758452 dns-tcp-responses-sent-ipv6: 69634237