--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7267602436 dns-udp-queries-received-ipv6: 2006226863 dns-tcp-queries-received-ipv4: 440612849 dns-tcp-queries-received-ipv6: 168992657 dns-udp-responses-sent-ipv4: 6804065112 dns-udp-responses-sent-ipv6: 1677867494 dns-tcp-responses-sent-ipv4: 379043734 dns-tcp-responses-sent-ipv6: 122041638