--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7094815115 dns-udp-queries-received-ipv6: 2398240205 dns-tcp-queries-received-ipv4: 433718064 dns-tcp-queries-received-ipv6: 189046719 dns-udp-responses-sent-ipv4: 6489705546 dns-udp-responses-sent-ipv6: 1927448236 dns-tcp-responses-sent-ipv4: 371500743 dns-tcp-responses-sent-ipv6: 138826595