--- service: h.root-servers.net metric: traffic-volume start-period: '2015-06-12T00:00:00Z' end-period: '2015-06-12T23:59:59Z' dns-udp-queries-received-ipv4: 836783170 dns-udp-queries-received-ipv6: 77024786 dns-tcp-queries-received-ipv4: 118752 dns-tcp-queries-received-ipv6: 43772 dns-udp-responses-sent-ipv4: 792501974 dns-udp-responses-sent-ipv6: 70720316 dns-tcp-responses-sent-ipv4: 42552 dns-tcp-responses-sent-ipv6: 28690