DNS protocol, messages query and reply messages, both with same message format. 2 bytes. 2 bytes.
{"Image DocumentName": "DNS protocol, messagesquery and reply messages, both with same message format. 2 bytes. 2 bytes. identification.", "Image ImageDescription": "flags. # questions. questions (variable # of questions) # additional RRs. # authority RRs. # answer RRs. answers (variable # of RRs) authority (variable # of RRs) additional info (variable # of RRs) msg header. identification: 16 bit # for query, reply to query uses same # flags: query or reply. recursion desired. recursion available. reply is authoritative. H. Fauconnier. M2-Internet.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}