--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6717370549 dns-udp-queries-received-ipv6: 2175732765 dns-tcp-queries-received-ipv4: 458912081 dns-tcp-queries-received-ipv6: 138728739 dns-udp-responses-sent-ipv4: 6105061389 dns-udp-responses-sent-ipv6: 1775574126 dns-tcp-responses-sent-ipv4: 387724983 dns-tcp-responses-sent-ipv6: 104244259