--- service: a.root-servers.net start-period: '2016-06-12T00:00:00Z' end-period: '2016-06-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5373500112 dns-udp-queries-received-ipv6: 364742338 dns-tcp-queries-received-ipv4: 78461430 dns-tcp-queries-received-ipv6: 5383836 dns-udp-responses-sent-ipv4: 5373344734 dns-udp-responses-sent-ipv6: 364387862 dns-tcp-responses-sent-ipv4: 66468189 dns-tcp-responses-sent-ipv6: 316829