--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4396266904 dns-udp-queries-received-ipv6: 410984314 dns-tcp-queries-received-ipv4: 126699666 dns-tcp-queries-received-ipv6: 12794150 dns-udp-responses-sent-ipv4: 4393889247 dns-udp-responses-sent-ipv6: 410977448 dns-tcp-responses-sent-ipv4: 126999582 dns-tcp-responses-sent-ipv6: 12912718