--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3339400982 dns-udp-queries-received-ipv6: 343950046 dns-tcp-queries-received-ipv4: 140518415 dns-tcp-queries-received-ipv6: 15834359 dns-udp-responses-sent-ipv4: 3337301610 dns-udp-responses-sent-ipv6: 343883859 dns-tcp-responses-sent-ipv4: 140825727 dns-tcp-responses-sent-ipv6: 15869012