--- service: a.root-servers.net start-period: '2013-11-13T00:00:00Z' end-period: '2013-11-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1627463980 dns-udp-queries-received-ipv6: 85061273 dns-tcp-queries-received-ipv4: 7652069 dns-tcp-queries-received-ipv6: 1376722 dns-udp-responses-sent-ipv4: 1626593117 dns-udp-responses-sent-ipv6: 85072016 dns-tcp-responses-sent-ipv4: 7976171 dns-tcp-responses-sent-ipv6: 8019