--- version: rssac002v4 service: a.root-servers.net start-period: '2021-11-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5119636531 dns-udp-queries-received-ipv6: 1265463083 dns-tcp-queries-received-ipv4: 292293809 dns-tcp-queries-received-ipv6: 114195987 dns-udp-responses-sent-ipv4: 4968605397 dns-udp-responses-sent-ipv6: 1263626294 dns-tcp-responses-sent-ipv4: 289124481 dns-tcp-responses-sent-ipv6: 114006204