--- version: rssac002v3 service: a.root-servers.net start-period: '2017-05-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4350705615 dns-udp-queries-received-ipv6: 376087148 dns-tcp-queries-received-ipv4: 163795126 dns-tcp-queries-received-ipv6: 8131443 dns-udp-responses-sent-ipv4: 4349365015 dns-udp-responses-sent-ipv6: 375983699 dns-tcp-responses-sent-ipv4: 163627482 dns-tcp-responses-sent-ipv6: 8230515