--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-12-07T00:00:00Z' dns-udp-queries-received-ipv4: 3666435297 dns-udp-queries-received-ipv6: 888906750 dns-tcp-queries-received-ipv4: 159164292 dns-tcp-queries-received-ipv6: 48707104 dns-udp-responses-sent-ipv4: 3422335638 dns-udp-responses-sent-ipv6: 842116832 dns-tcp-responses-sent-ipv4: 147364875 dns-tcp-responses-sent-ipv6: 43270104