--- version: rssac002v4 service: a.root-servers.net start-period: '2022-02-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5411355434 dns-udp-queries-received-ipv6: 1424599346 dns-tcp-queries-received-ipv4: 327942715 dns-tcp-queries-received-ipv6: 126483715 dns-udp-responses-sent-ipv4: 5468512038 dns-udp-responses-sent-ipv6: 1516118717 dns-tcp-responses-sent-ipv4: 303317305 dns-tcp-responses-sent-ipv6: 126727723