--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5655411479 dns-udp-queries-received-ipv6: 1439340743 dns-tcp-queries-received-ipv4: 320749089 dns-tcp-queries-received-ipv6: 116909290 dns-udp-responses-sent-ipv4: 5674937435 dns-udp-responses-sent-ipv6: 1472625167 dns-tcp-responses-sent-ipv4: 305572772 dns-tcp-responses-sent-ipv6: 117279561