--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5594047182 dns-udp-queries-received-ipv6: 1368310100 dns-tcp-queries-received-ipv4: 327909290 dns-tcp-queries-received-ipv6: 106013514 dns-udp-responses-sent-ipv4: 5604188295 dns-udp-responses-sent-ipv6: 1405897642 dns-tcp-responses-sent-ipv4: 322921790 dns-tcp-responses-sent-ipv6: 106438933