--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6579415194 dns-udp-queries-received-ipv6: 1372506488 dns-tcp-queries-received-ipv4: 178997120 dns-tcp-queries-received-ipv6: 34747240 dns-udp-responses-sent-ipv4: 6420979630 dns-udp-responses-sent-ipv6: 1371560273 dns-tcp-responses-sent-ipv4: 174055798 dns-tcp-responses-sent-ipv6: 35462048