--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3404367651 dns-udp-queries-received-ipv6: 388981240 dns-tcp-queries-received-ipv4: 157540081 dns-tcp-queries-received-ipv6: 14742340 dns-udp-responses-sent-ipv4: 3401636736 dns-udp-responses-sent-ipv6: 388948689 dns-tcp-responses-sent-ipv4: 157385089 dns-tcp-responses-sent-ipv6: 14860393