Question Detail Which layer will be used while transmitting data using FTP or Telnet PresentationApplicationSessionTransport Answer: Option B Similar Questions : 1. Which class is given wrong here ? CLASS A = 1 to 126CLASS B = 128 to 191CLASS C = 192 to 220CLASS D = 224 to 239 (Multicasting)CLASS E = 240 to 255 (Research) Answer: Option CExplanation:CLASS C is from 192 to 223 2. Which protocol uses both TCP and UDP FTPSMTPTelnetDNS Answer: Option D 3. ICMP works on which layer Physical LayerDatalink LayerNetwork layerTransport Layer Answer: Option C 4. Which protocol deals with emails FTPSMTPLPDX window Answer: Option B 5. Which protocol ensures reliable delivery TCPUDPBoth of above None of above Answer: Option A Read more from - TCP-IP Questions Answers