--- service: a.root-servers.net start-period: '2013-10-28T00:00:00Z' end-period: '2013-10-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1502428925 dns-udp-queries-received-ipv6: 83601837 dns-tcp-queries-received-ipv4: 8118439 dns-tcp-queries-received-ipv6: 1522360 dns-udp-responses-sent-ipv4: 1502018958 dns-udp-responses-sent-ipv6: 83615160 dns-tcp-responses-sent-ipv4: 8446762 dns-tcp-responses-sent-ipv6: 18724