--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6949608322 dns-udp-queries-received-ipv6: 2070284876 dns-tcp-queries-received-ipv4: 449974562 dns-tcp-queries-received-ipv6: 133261096 dns-udp-responses-sent-ipv4: 6480278111 dns-udp-responses-sent-ipv6: 1860873180 dns-tcp-responses-sent-ipv4: 398011015 dns-tcp-responses-sent-ipv6: 108333964