--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-05-04T00:00:00Z' dns-udp-queries-received-ipv4: 2374300886 dns-udp-queries-received-ipv6: 487611536 dns-tcp-queries-received-ipv4: 36619622 dns-tcp-queries-received-ipv6: 12194467 dns-udp-responses-sent-ipv4: 2328747227 dns-udp-responses-sent-ipv6: 485665133 dns-tcp-responses-sent-ipv4: 34167144 dns-tcp-responses-sent-ipv6: 11554602