--- version: rssac002v4 service: a.root-servers.net start-period: '2021-11-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5054099266 dns-udp-queries-received-ipv6: 1189879142 dns-tcp-queries-received-ipv4: 291812545 dns-tcp-queries-received-ipv6: 75008449 dns-udp-responses-sent-ipv4: 5048429726 dns-udp-responses-sent-ipv6: 1199751755 dns-tcp-responses-sent-ipv4: 289233950 dns-tcp-responses-sent-ipv6: 74893601