--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3928531567 dns-udp-queries-received-ipv6: 427557336 dns-tcp-queries-received-ipv4: 149262213 dns-tcp-queries-received-ipv6: 16073118 dns-udp-responses-sent-ipv4: 3923315185 dns-udp-responses-sent-ipv6: 427206544 dns-tcp-responses-sent-ipv4: 149417746 dns-tcp-responses-sent-ipv6: 16119073