--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6404784995 dns-udp-queries-received-ipv6: 852410847 dns-tcp-queries-received-ipv4: 245957706 dns-tcp-queries-received-ipv6: 71394561 dns-udp-responses-sent-ipv4: 6222089436 dns-udp-responses-sent-ipv6: 847956715 dns-tcp-responses-sent-ipv4: 229374158 dns-tcp-responses-sent-ipv6: 71564733