--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3677816634 dns-udp-queries-received-ipv6: 432450002 dns-tcp-queries-received-ipv4: 110643022 dns-tcp-queries-received-ipv6: 15391566 dns-udp-responses-sent-ipv4: 3663809018 dns-udp-responses-sent-ipv6: 432390028 dns-tcp-responses-sent-ipv4: 110437065 dns-tcp-responses-sent-ipv6: 15482319