Q1. The session layer is not existed in TCP/IP protocol suite as compared to the OSI model.  Describe how the session layer needs are then taken care of in the TCP/IP?

Q2. Let consider building a CSMA/CD network running at 1 Gbps over 1-km cable with no repeaters. Signal speed in the cable is 200,000 km/sec. Find out the minimum frame size?

Q3. Prove that the utilization of a server in M/M/1 queue is ρ.

Q4. prepare down the format of Ethernet frame and describe the meaning of each field in the frame.

Q5. describe why keying is needed in the data communication over networks? By using suitable diagrams compare the different features of the Frequency Shift Keying (FSK) with Phase Shift Keying (PSK).

Q6. Illustrate the use of AC, FC, and FS in the token ring protocol (IEEE 802.5).