--- service: j.root-servers.net start-period: '2016-04-18T00:00:00Z' end-period: '2016-04-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5482184888 dns-udp-queries-received-ipv6: 684016302 dns-tcp-queries-received-ipv4: 168282645 dns-tcp-queries-received-ipv6: 3276030 dns-udp-responses-sent-ipv4: 5170969682 dns-udp-responses-sent-ipv6: 683705127 dns-tcp-responses-sent-ipv4: 147165978 dns-tcp-responses-sent-ipv6: 311393