--- version: rssac002v4 service: a.root-servers.net start-period: '2023-06-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7134459636 dns-udp-queries-received-ipv6: 2055807450 dns-tcp-queries-received-ipv4: 430619948 dns-tcp-queries-received-ipv6: 218722708 dns-udp-responses-sent-ipv4: 6754524772 dns-udp-responses-sent-ipv6: 1820346681 dns-tcp-responses-sent-ipv4: 393473777 dns-tcp-responses-sent-ipv6: 190196231