--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-05-11T00:00:00Z' dns-udp-queries-received-ipv4: 2448753861 dns-udp-queries-received-ipv6: 489104624 dns-tcp-queries-received-ipv4: 59058146 dns-tcp-queries-received-ipv6: 16336741 dns-udp-responses-sent-ipv4: 2429643450 dns-udp-responses-sent-ipv6: 488721746 dns-tcp-responses-sent-ipv4: 57787718 dns-tcp-responses-sent-ipv6: 16235831