--- version: rssac002v4 service: a.root-servers.net start-period: '2022-04-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4384808113 dns-udp-queries-received-ipv6: 1267219775 dns-tcp-queries-received-ipv4: 253142906 dns-tcp-queries-received-ipv6: 47517018 dns-udp-responses-sent-ipv4: 4376280895 dns-udp-responses-sent-ipv6: 1272651382 dns-tcp-responses-sent-ipv4: 249401400 dns-tcp-responses-sent-ipv6: 47568258