--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3964506192 dns-udp-queries-received-ipv6: 672474782 dns-tcp-queries-received-ipv4: 113404867 dns-tcp-queries-received-ipv6: 20516178 dns-udp-responses-sent-ipv4: 3847136271 dns-udp-responses-sent-ipv6: 671594951 dns-tcp-responses-sent-ipv4: 109689555 dns-tcp-responses-sent-ipv6: 20571685