--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3320890559 dns-udp-queries-received-ipv6: 422280550 dns-tcp-queries-received-ipv4: 120542651 dns-tcp-queries-received-ipv6: 16380080 dns-udp-responses-sent-ipv4: 3309071470 dns-udp-responses-sent-ipv6: 422195829 dns-tcp-responses-sent-ipv4: 120492733 dns-tcp-responses-sent-ipv6: 16490620