--- service: d.root-servers.net start-period: '2016-03-14T00:00:00Z' end-period: '2016-03-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4354747228 dns-udp-queries-received-ipv6: 540471641 dns-tcp-queries-received-ipv4: 27508704 dns-tcp-queries-received-ipv6: 1181403 dns-udp-responses-sent-ipv4: 4330856538 dns-udp-responses-sent-ipv6: 540153126 dns-tcp-responses-sent-ipv4: 27506590 dns-tcp-responses-sent-ipv6: 1181378