--- service: j.root-servers.net start-period: '2015-03-29T00:00:00Z' end-period: '2015-03-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3078940029 dns-udp-queries-received-ipv6: 312943305 dns-tcp-queries-received-ipv4: 27400155 dns-tcp-queries-received-ipv6: 4422690 dns-udp-responses-sent-ipv4: 3087745281 dns-udp-responses-sent-ipv6: 312914096 dns-tcp-responses-sent-ipv4: 27156640 dns-tcp-responses-sent-ipv6: 3743568