--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6967627401 dns-udp-queries-received-ipv6: 2100885108 dns-tcp-queries-received-ipv4: 475125812 dns-tcp-queries-received-ipv6: 138403806 dns-udp-responses-sent-ipv4: 6352326625 dns-udp-responses-sent-ipv6: 1785589777 dns-tcp-responses-sent-ipv4: 396696116 dns-tcp-responses-sent-ipv6: 107065425