--- version: rssac002v3 service: a.root-servers.net start-period: '2019-12-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6062455706 dns-udp-queries-received-ipv6: 882562392 dns-tcp-queries-received-ipv4: 239706298 dns-tcp-queries-received-ipv6: 86057481 dns-udp-responses-sent-ipv4: 5870614947 dns-udp-responses-sent-ipv6: 881275496 dns-tcp-responses-sent-ipv4: 235880119 dns-tcp-responses-sent-ipv6: 86281647