--- service: a.root-servers.net start-period: '2013-10-25T00:00:00Z' end-period: '2013-10-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1578301221 dns-udp-queries-received-ipv6: 85075711 dns-tcp-queries-received-ipv4: 7776266 dns-tcp-queries-received-ipv6: 1516175 dns-udp-responses-sent-ipv4: 1577215036 dns-udp-responses-sent-ipv6: 85084884 dns-tcp-responses-sent-ipv4: 8254055 dns-tcp-responses-sent-ipv6: 286593