--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-12-17T00:00:00Z' dns-udp-queries-received-ipv4: 3554907119 dns-udp-queries-received-ipv6: 814355284 dns-tcp-queries-received-ipv4: 164992046 dns-tcp-queries-received-ipv6: 63038244 dns-udp-responses-sent-ipv4: 3386038199 dns-udp-responses-sent-ipv6: 786700044 dns-tcp-responses-sent-ipv4: 153835386 dns-tcp-responses-sent-ipv6: 61700693