--- version: rssac002v4 service: a.root-servers.net start-period: '2022-07-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6411205215 dns-udp-queries-received-ipv6: 1992672539 dns-tcp-queries-received-ipv4: 379622101 dns-tcp-queries-received-ipv6: 55519969 dns-udp-responses-sent-ipv4: 5966001379 dns-udp-responses-sent-ipv6: 1985109515 dns-tcp-responses-sent-ipv4: 296453584 dns-tcp-responses-sent-ipv6: 54304047