--- service: j.root-servers.net start-period: '2016-05-30T00:00:00Z' end-period: '2016-05-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6616331309 dns-udp-queries-received-ipv6: 676920513 dns-tcp-queries-received-ipv4: 200385209 dns-tcp-queries-received-ipv6: 3332645 dns-udp-responses-sent-ipv4: 6405251222 dns-udp-responses-sent-ipv6: 675484515 dns-tcp-responses-sent-ipv4: 162993289 dns-tcp-responses-sent-ipv6: 615618