--- service: d.root-servers.net start-period: '2015-11-15T00:00:00Z' end-period: '2015-11-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3708781758 dns-udp-queries-received-ipv6: 440723799 dns-tcp-queries-received-ipv4: 16167179 dns-tcp-queries-received-ipv6: 491753 dns-udp-responses-sent-ipv4: 3695342287 dns-udp-responses-sent-ipv6: 440457892 dns-tcp-responses-sent-ipv4: 16123583 dns-tcp-responses-sent-ipv6: 491574