--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4143706145 dns-udp-queries-received-ipv6: 310717411 dns-tcp-queries-received-ipv4: 123974818 dns-tcp-queries-received-ipv6: 13176920 dns-udp-responses-sent-ipv4: 4081259984 dns-udp-responses-sent-ipv6: 310350795 dns-tcp-responses-sent-ipv4: 123886124 dns-tcp-responses-sent-ipv6: 13211142