--- service: j.root-servers.net start-period: '2015-04-23T00:00:00Z' end-period: '2015-04-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3254235902 dns-udp-queries-received-ipv6: 215786756 dns-tcp-queries-received-ipv4: 23853393 dns-tcp-queries-received-ipv6: 5893955 dns-udp-responses-sent-ipv4: 3246229291 dns-udp-responses-sent-ipv6: 215604471 dns-tcp-responses-sent-ipv4: 23401269 dns-tcp-responses-sent-ipv6: 4279227