--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-06-01T00:00:00Z' dns-udp-queries-received-ipv4: 2994448253 dns-udp-queries-received-ipv6: 652761071 dns-tcp-queries-received-ipv4: 66348347 dns-tcp-queries-received-ipv6: 17238045 dns-udp-responses-sent-ipv4: 2972838732 dns-udp-responses-sent-ipv6: 652205087 dns-tcp-responses-sent-ipv4: 64770913 dns-tcp-responses-sent-ipv6: 17001113