--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7109500942 dns-udp-queries-received-ipv6: 2124358654 dns-tcp-queries-received-ipv4: 429623747 dns-tcp-queries-received-ipv6: 146915275 dns-udp-responses-sent-ipv4: 6586760374 dns-udp-responses-sent-ipv6: 1745767777 dns-tcp-responses-sent-ipv4: 384766755 dns-tcp-responses-sent-ipv6: 112026260