--- service: j.root-servers.net start-period: '2016-05-15T00:00:00Z' end-period: '2016-05-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7954637801 dns-udp-queries-received-ipv6: 885856072 dns-tcp-queries-received-ipv4: 261422067 dns-tcp-queries-received-ipv6: 5223866 dns-udp-responses-sent-ipv4: 7576631856 dns-udp-responses-sent-ipv6: 887451266 dns-tcp-responses-sent-ipv4: 192322807 dns-tcp-responses-sent-ipv6: 2355547