--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7163343157 dns-udp-queries-received-ipv6: 1368664260 dns-tcp-queries-received-ipv4: 330434093 dns-tcp-queries-received-ipv6: 81063659 dns-udp-responses-sent-ipv4: 6869603848 dns-udp-responses-sent-ipv6: 1279984923 dns-tcp-responses-sent-ipv4: 316387369 dns-tcp-responses-sent-ipv6: 80639998