--- version: rssac002v4 service: a.root-servers.net start-period: '2021-10-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4585479155 dns-udp-queries-received-ipv6: 1109013738 dns-tcp-queries-received-ipv4: 278974503 dns-tcp-queries-received-ipv6: 70361738 dns-udp-responses-sent-ipv4: 4449591557 dns-udp-responses-sent-ipv6: 1107344134 dns-tcp-responses-sent-ipv4: 275599400 dns-tcp-responses-sent-ipv6: 70945242