--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8632975950 dns-udp-queries-received-ipv6: 1533059093 dns-tcp-queries-received-ipv4: 420393615 dns-tcp-queries-received-ipv6: 122335307 dns-udp-responses-sent-ipv4: 8367338980 dns-udp-responses-sent-ipv6: 1524032285 dns-tcp-responses-sent-ipv4: 415925372 dns-tcp-responses-sent-ipv6: 122428903