--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6642623336 dns-udp-queries-received-ipv6: 968293063 dns-tcp-queries-received-ipv4: 269071702 dns-tcp-queries-received-ipv6: 69802793 dns-udp-responses-sent-ipv4: 6433394266 dns-udp-responses-sent-ipv6: 965664831 dns-tcp-responses-sent-ipv4: 248544194 dns-tcp-responses-sent-ipv6: 69808599