--- service: h.root-servers.net metric: traffic-volume start-period: '2015-03-28T00:00:00Z' end-period: '2015-03-28T23:59:59Z' dns-udp-queries-received-ipv4: 920762045 dns-udp-queries-received-ipv6: 84117376 dns-tcp-queries-received-ipv4: 132609 dns-tcp-queries-received-ipv6: 63122 dns-udp-responses-sent-ipv4: 796753097 dns-udp-responses-sent-ipv6: 78359380 dns-tcp-responses-sent-ipv4: 36502 dns-tcp-responses-sent-ipv6: 42748