--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5536593259 dns-udp-queries-received-ipv6: 1116463380 dns-tcp-queries-received-ipv4: 279060355 dns-tcp-queries-received-ipv6: 87732390 dns-udp-responses-sent-ipv4: 5329799101 dns-udp-responses-sent-ipv6: 1115062675 dns-tcp-responses-sent-ipv4: 267974598 dns-tcp-responses-sent-ipv6: 88173441