--- version: rssac002v4 service: a.root-servers.net start-period: '2022-01-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5393927378 dns-udp-queries-received-ipv6: 1248823085 dns-tcp-queries-received-ipv4: 319202769 dns-tcp-queries-received-ipv6: 65656629 dns-udp-responses-sent-ipv4: 5455879465 dns-udp-responses-sent-ipv6: 1281647352 dns-tcp-responses-sent-ipv4: 295821455 dns-tcp-responses-sent-ipv6: 65675893