--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3516640257 dns-udp-queries-received-ipv6: 456448639 dns-tcp-queries-received-ipv4: 100346124 dns-tcp-queries-received-ipv6: 17729211 dns-udp-responses-sent-ipv4: 3430570962 dns-udp-responses-sent-ipv6: 456177192 dns-tcp-responses-sent-ipv4: 96941617 dns-tcp-responses-sent-ipv6: 17737371