--- version: rssac002v4 service: a.root-servers.net start-period: '2022-05-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5012515724 dns-udp-queries-received-ipv6: 1629216245 dns-tcp-queries-received-ipv4: 277670699 dns-tcp-queries-received-ipv6: 64325073 dns-udp-responses-sent-ipv4: 4758541315 dns-udp-responses-sent-ipv6: 1627467750 dns-tcp-responses-sent-ipv4: 259472466 dns-tcp-responses-sent-ipv6: 64339628