--- service: a.root-servers.net start-period: '2017-02-26T00:00:00Z' end-period: '2017-02-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4614289784 dns-udp-queries-received-ipv6: 465865240 dns-tcp-queries-received-ipv4: 185996144 dns-tcp-queries-received-ipv6: 8140892 dns-udp-responses-sent-ipv4: 4611952394 dns-udp-responses-sent-ipv6: 465806431 dns-tcp-responses-sent-ipv4: 186315673 dns-tcp-responses-sent-ipv6: 8192723