--- version: rssac002v3 service: a.root-servers.net start-period: '2019-02-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4794095244 dns-udp-queries-received-ipv6: 702211187 dns-tcp-queries-received-ipv4: 149386476 dns-tcp-queries-received-ipv6: 33477955 dns-udp-responses-sent-ipv4: 4687131926 dns-udp-responses-sent-ipv6: 701786215 dns-tcp-responses-sent-ipv4: 145784993 dns-tcp-responses-sent-ipv6: 34074132