--- service: j.root-servers.net start-period: '2013-10-21T00:00:00Z' end-period: '2013-10-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2395807302 dns-udp-queries-received-ipv6: 155240102 dns-tcp-queries-received-ipv4: 21083724 dns-tcp-queries-received-ipv6: 3689942 dns-udp-responses-sent-ipv4: 2387978369 dns-udp-responses-sent-ipv6: 155193618 dns-tcp-responses-sent-ipv4: 20693238 dns-tcp-responses-sent-ipv6: 95210