--- service: j.root-servers.net start-period: '2015-03-23T00:00:00Z' end-period: '2015-03-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3347930752 dns-udp-queries-received-ipv6: 330744867 dns-tcp-queries-received-ipv4: 25661385 dns-tcp-queries-received-ipv6: 4741495 dns-udp-responses-sent-ipv4: 3351239569 dns-udp-responses-sent-ipv6: 330599939 dns-tcp-responses-sent-ipv4: 25350209 dns-tcp-responses-sent-ipv6: 3925231