--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5597138744 dns-udp-queries-received-ipv6: 1127891918 dns-tcp-queries-received-ipv4: 290420154 dns-tcp-queries-received-ipv6: 87986225 dns-udp-responses-sent-ipv4: 5416447898 dns-udp-responses-sent-ipv6: 1126415318 dns-tcp-responses-sent-ipv4: 275072900 dns-tcp-responses-sent-ipv6: 88400898