--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9041875754 dns-udp-queries-received-ipv6: 1776143237 dns-tcp-queries-received-ipv4: 312363846 dns-tcp-queries-received-ipv6: 133541524 dns-udp-responses-sent-ipv4: 8781728038 dns-udp-responses-sent-ipv6: 1757364737 dns-tcp-responses-sent-ipv4: 307791984 dns-tcp-responses-sent-ipv6: 133713799