--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-05-17T00:00:00Z' dns-udp-queries-received-ipv4: 2803936770 dns-udp-queries-received-ipv6: 525617425 dns-tcp-queries-received-ipv4: 59952125 dns-tcp-queries-received-ipv6: 15572089 dns-udp-responses-sent-ipv4: 2778305965 dns-udp-responses-sent-ipv6: 525223536 dns-tcp-responses-sent-ipv4: 58024229 dns-tcp-responses-sent-ipv6: 15285481