Question Detail Which protocol ensures reliable delivery TCPUDPBoth of above None of above Answer: Option A Similar Questions : 1. Which protocol uses window flow system UDPTCPFTPNone of above Answer: Option B 2. Telnet allows user to connect client machinetransferring filessharing filesnone of above Answer: Option A 3. 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 4. Which protocol finds the MAC address from IP address SMTPICMPARPRARP Answer: Option C 5. Which protocol uses both TCP and UDP FTPSMTPTelnetDNS Answer: Option D Read more from - TCP-IP Questions Answers