--- version: rssac002v3 service: a.root-servers.net start-period: '2018-10-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4227390284 dns-udp-queries-received-ipv6: 620760946 dns-tcp-queries-received-ipv4: 111483262 dns-tcp-queries-received-ipv6: 25625676 dns-udp-responses-sent-ipv4: 4122129635 dns-udp-responses-sent-ipv6: 620478998 dns-tcp-responses-sent-ipv4: 108690976 dns-tcp-responses-sent-ipv6: 25724951