--- service: j.root-servers.net start-period: '2015-05-13T00:00:00Z' end-period: '2015-05-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3825897390 dns-udp-queries-received-ipv6: 271677019 dns-tcp-queries-received-ipv4: 24820155 dns-tcp-queries-received-ipv6: 4876033 dns-udp-responses-sent-ipv4: 3763597156 dns-udp-responses-sent-ipv6: 271554739 dns-tcp-responses-sent-ipv4: 24285824 dns-tcp-responses-sent-ipv6: 3780763