--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-04-11T00:00:00Z dns-udp-queries-received-ipv4: 3363618026 dns-udp-queries-received-ipv6: 892059532 dns-tcp-queries-received-ipv4: 112811689 dns-tcp-queries-received-ipv6: 60866568 dns-udp-responses-sent-ipv4: 3359847022 dns-udp-responses-sent-ipv6: 891763954 dns-tcp-responses-sent-ipv4: 115126294 dns-tcp-responses-sent-ipv6: 62729993