--- service: h.root-servers.net metric: traffic-volume start-period: '2015-12-15T00:00:00Z' end-period: '2015-12-15T23:59:59Z' dns-udp-queries-received-ipv4: 911642994 dns-udp-queries-received-ipv6: 76036840 dns-tcp-queries-received-ipv4: 280719 dns-tcp-queries-received-ipv6: 102565 dns-udp-responses-sent-ipv4: 874118852 dns-udp-responses-sent-ipv6: 76087705 dns-tcp-responses-sent-ipv4: 175530 dns-tcp-responses-sent-ipv6: 86971