--- service: a.root-servers.net start-period: '2016-06-26T00:00:00Z' end-period: '2016-06-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2248463684 dns-udp-queries-received-ipv6: 403049974 dns-tcp-queries-received-ipv4: 63746867 dns-tcp-queries-received-ipv6: 7791467 dns-udp-responses-sent-ipv4: 2248113759 dns-udp-responses-sent-ipv6: 403041430 dns-tcp-responses-sent-ipv4: 53177424 dns-tcp-responses-sent-ipv6: 1904360