--- version: rssac002v3 service: a.root-servers.net start-period: '2018-12-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4896724395 dns-udp-queries-received-ipv6: 753863585 dns-tcp-queries-received-ipv4: 139260619 dns-tcp-queries-received-ipv6: 34839236 dns-udp-responses-sent-ipv4: 4789213550 dns-udp-responses-sent-ipv6: 753232493 dns-tcp-responses-sent-ipv4: 135353327 dns-tcp-responses-sent-ipv6: 35026371