--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3762902254 dns-udp-queries-received-ipv6: 440533724 dns-tcp-queries-received-ipv4: 163646072 dns-tcp-queries-received-ipv6: 16384752 dns-udp-responses-sent-ipv4: 3758317781 dns-udp-responses-sent-ipv6: 440450628 dns-tcp-responses-sent-ipv4: 163487109 dns-tcp-responses-sent-ipv6: 16481418