--- version: rssac002v3 service: a.root-servers.net start-period: '2017-11-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3500417702 dns-udp-queries-received-ipv6: 386489331 dns-tcp-queries-received-ipv4: 87437364 dns-tcp-queries-received-ipv6: 16668379 dns-udp-responses-sent-ipv4: 3498268464 dns-udp-responses-sent-ipv6: 386445656 dns-tcp-responses-sent-ipv4: 87671303 dns-tcp-responses-sent-ipv6: 16775364