--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6885777746 dns-udp-queries-received-ipv6: 2479201098 dns-tcp-queries-received-ipv4: 456327642 dns-tcp-queries-received-ipv6: 181156325 dns-udp-responses-sent-ipv4: 6266164677 dns-udp-responses-sent-ipv6: 2009649715 dns-tcp-responses-sent-ipv4: 397462313 dns-tcp-responses-sent-ipv6: 132791605