--- version: rssac002v4 service: a.root-servers.net start-period: '2022-03-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4692178209 dns-udp-queries-received-ipv6: 1221667109 dns-tcp-queries-received-ipv4: 267469651 dns-tcp-queries-received-ipv6: 44330713 dns-udp-responses-sent-ipv4: 4848444845 dns-udp-responses-sent-ipv6: 1238861050 dns-tcp-responses-sent-ipv4: 264823857 dns-tcp-responses-sent-ipv6: 44375042