--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6314784900 dns-udp-queries-received-ipv6: 918556863 dns-tcp-queries-received-ipv4: 265745499 dns-tcp-queries-received-ipv6: 69850567 dns-udp-responses-sent-ipv4: 6124790337 dns-udp-responses-sent-ipv6: 916783365 dns-tcp-responses-sent-ipv4: 246202476 dns-tcp-responses-sent-ipv6: 69889867