--- service: a.root-servers.net start-period: '2016-07-03T00:00:00Z' end-period: '2016-07-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3958277811 dns-udp-queries-received-ipv6: 420326698 dns-tcp-queries-received-ipv4: 68684799 dns-tcp-queries-received-ipv6: 6225123 dns-udp-responses-sent-ipv4: 3957445618 dns-udp-responses-sent-ipv6: 420283137 dns-tcp-responses-sent-ipv4: 56912472 dns-tcp-responses-sent-ipv6: 317379