--- service: j.root-servers.net start-period: '2016-05-18T00:00:00Z' end-period: '2016-05-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7995671284 dns-udp-queries-received-ipv6: 753882017 dns-tcp-queries-received-ipv4: 253943083 dns-tcp-queries-received-ipv6: 3310055 dns-udp-responses-sent-ipv4: 7681745798 dns-udp-responses-sent-ipv6: 752547535 dns-tcp-responses-sent-ipv4: 205621222 dns-tcp-responses-sent-ipv6: 584335