--- service: i.root-servers.net start-period: '2015-10-28T00:00:00Z' end-period: '2015-10-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2495802946 dns-udp-queries-received-ipv6: 200049777 dns-tcp-queries-received-ipv4: 12286229 dns-tcp-queries-received-ipv6: 349764 dns-udp-responses-sent-ipv4: 2467845146 dns-udp-responses-sent-ipv6: 204037904 dns-tcp-responses-sent-ipv4: 12355587 dns-tcp-responses-sent-ipv6: 354325