--- service: a.root-servers.net start-period: '2016-05-05T00:00:00Z' end-period: '2016-05-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4830343875 dns-udp-queries-received-ipv6: 350625695 dns-tcp-queries-received-ipv4: 79662553 dns-tcp-queries-received-ipv6: 4658248 dns-udp-responses-sent-ipv4: 4829823331 dns-udp-responses-sent-ipv6: 350318644 dns-tcp-responses-sent-ipv4: 61886784 dns-tcp-responses-sent-ipv6: 289966