--- version: rssac002v4 service: a.root-servers.net start-period: '2023-06-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7080558284 dns-udp-queries-received-ipv6: 1992496142 dns-tcp-queries-received-ipv4: 444681474 dns-tcp-queries-received-ipv6: 157185838 dns-udp-responses-sent-ipv4: 6633716847 dns-udp-responses-sent-ipv6: 1681842690 dns-tcp-responses-sent-ipv4: 397478827 dns-tcp-responses-sent-ipv6: 119346643