--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3315021047 dns-udp-queries-received-ipv6: 363752505 dns-tcp-queries-received-ipv4: 155126470 dns-tcp-queries-received-ipv6: 14527809 dns-udp-responses-sent-ipv4: 3312591895 dns-udp-responses-sent-ipv6: 363631955 dns-tcp-responses-sent-ipv4: 155192683 dns-tcp-responses-sent-ipv6: 14674119