Question Detail TCP/IP suite was created by IEEEDepartment of defenceOpen sourceNone of above Answer: Option B Similar Questions : 1. TCP/IP reference model contains how many layers 3467 Answer: Option BExplanation:TCP/IP reference model has four layer Application Layer Host to Host Internet Layer Network Access 2. Which IP is reserved for loopback testing 192.168.0.010.255.255.255255.0.0.0None of above Answer: Option DExplanation:127.0.0.1 is reserved for loopback testing 3. Telnet allows user to connect client machinetransferring filessharing filesnone of above Answer: Option A 4. ICMP works on which layer Physical LayerDatalink LayerNetwork layerTransport Layer Answer: Option C 5. 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 Read more from - TCP-IP Questions Answers