--- version: rssac002v3 service: a.root-servers.net start-period: '2018-04-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3678266010 dns-udp-queries-received-ipv6: 330754076 dns-tcp-queries-received-ipv4: 108719439 dns-tcp-queries-received-ipv6: 13709938 dns-udp-responses-sent-ipv4: 3611848325 dns-udp-responses-sent-ipv6: 330580527 dns-tcp-responses-sent-ipv4: 107802752 dns-tcp-responses-sent-ipv6: 13739830