--- version: rssac002v4 service: a.root-servers.net start-period: '2022-03-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5356516063 dns-udp-queries-received-ipv6: 1448467233 dns-tcp-queries-received-ipv4: 299169017 dns-tcp-queries-received-ipv6: 84997095 dns-udp-responses-sent-ipv4: 5573754717 dns-udp-responses-sent-ipv6: 1553690767 dns-tcp-responses-sent-ipv4: 295962469 dns-tcp-responses-sent-ipv6: 84767639