--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6732370933 dns-udp-queries-received-ipv6: 1023232585 dns-tcp-queries-received-ipv4: 261362600 dns-tcp-queries-received-ipv6: 97825041 dns-udp-responses-sent-ipv4: 6534384477 dns-udp-responses-sent-ipv6: 1022431372 dns-tcp-responses-sent-ipv4: 257659378 dns-tcp-responses-sent-ipv6: 98244258