--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5939138857 dns-udp-queries-received-ipv6: 1185760660 dns-tcp-queries-received-ipv4: 279504806 dns-tcp-queries-received-ipv6: 100972635 dns-udp-responses-sent-ipv4: 5773247345 dns-udp-responses-sent-ipv6: 1184036973 dns-tcp-responses-sent-ipv4: 270367732 dns-tcp-responses-sent-ipv6: 101373979