--- service: j.root-servers.net start-period: '2016-12-18T00:00:00Z' end-period: '2016-12-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5860652531 dns-udp-queries-received-ipv6: 612726747 dns-tcp-queries-received-ipv4: 188331950 dns-tcp-queries-received-ipv6: 10561024 dns-udp-responses-sent-ipv4: 5756244349 dns-udp-responses-sent-ipv6: 616952687 dns-tcp-responses-sent-ipv4: 167909668 dns-tcp-responses-sent-ipv6: 10623227