--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6851012630 dns-udp-queries-received-ipv6: 2032832501 dns-tcp-queries-received-ipv4: 459130840 dns-tcp-queries-received-ipv6: 174021420 dns-udp-responses-sent-ipv4: 6379731273 dns-udp-responses-sent-ipv6: 1707072970 dns-tcp-responses-sent-ipv4: 397608387 dns-tcp-responses-sent-ipv6: 127265521