--- service: j.root-servers.net start-period: '2016-02-18T00:00:00Z' end-period: '2016-02-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5801488456 dns-udp-queries-received-ipv6: 583467286 dns-tcp-queries-received-ipv4: 148382225 dns-tcp-queries-received-ipv6: 3104270 dns-udp-responses-sent-ipv4: 5266656744 dns-udp-responses-sent-ipv6: 583696235 dns-tcp-responses-sent-ipv4: 125137389 dns-tcp-responses-sent-ipv6: 347756