--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4897060602 dns-udp-queries-received-ipv6: 1193875539 dns-tcp-queries-received-ipv4: 318155834 dns-tcp-queries-received-ipv6: 117920322 dns-udp-responses-sent-ipv4: 4829116889 dns-udp-responses-sent-ipv6: 1218101884 dns-tcp-responses-sent-ipv4: 306132504 dns-tcp-responses-sent-ipv6: 117815813