--- version: rssac002v4 service: a.root-servers.net start-period: '2022-02-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5188824780 dns-udp-queries-received-ipv6: 1309498369 dns-tcp-queries-received-ipv4: 294774328 dns-tcp-queries-received-ipv6: 55856871 dns-udp-responses-sent-ipv4: 5397043699 dns-udp-responses-sent-ipv6: 1343862728 dns-tcp-responses-sent-ipv4: 290616204 dns-tcp-responses-sent-ipv6: 55894364