Q1. Distinguish between the given terms:
a) LAN and WAN
b) Monolithic and structured protocols.
Q2. Describe the working principle of TCP/IP model.
Q3. Explain what signal to noise ratio is needed to put T1 carrier on the 50 kHz line?
Q4. For binary data 01101001, plot various digital shift keying modulated wave forms and describe the same.
Q5. Describe the working of CSMA/CA and CSMA/CD protocol.
Q6. Explain why data encryption is needed in networks? As well describe in short about the DES.
Q7. Write a detail note on the World Wide Web.