--- service: a.root-servers.net start-period: '2016-05-11T00:00:00Z' end-period: '2016-05-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4948643371 dns-udp-queries-received-ipv6: 363677322 dns-tcp-queries-received-ipv4: 98041587 dns-tcp-queries-received-ipv6: 5306185 dns-udp-responses-sent-ipv4: 4948175341 dns-udp-responses-sent-ipv6: 362712611 dns-tcp-responses-sent-ipv4: 82009575 dns-tcp-responses-sent-ipv6: 886549