--- version: rssac002v4 service: a.root-servers.net start-period: '2021-10-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5429683116 dns-udp-queries-received-ipv6: 1352444122 dns-tcp-queries-received-ipv4: 295924857 dns-tcp-queries-received-ipv6: 103088621 dns-udp-responses-sent-ipv4: 5255465265 dns-udp-responses-sent-ipv6: 1350602783 dns-tcp-responses-sent-ipv4: 292279474 dns-tcp-responses-sent-ipv6: 102902062