--- service: j.root-servers.net start-period: '2015-02-06T00:00:00Z' end-period: '2015-02-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3171845436 dns-udp-queries-received-ipv6: 293537687 dns-tcp-queries-received-ipv4: 26061513 dns-tcp-queries-received-ipv6: 4359038 dns-udp-responses-sent-ipv4: 3191802738 dns-udp-responses-sent-ipv6: 293539027 dns-tcp-responses-sent-ipv4: 26061371 dns-tcp-responses-sent-ipv6: 3668283