Assignment 2- BCA

PHYSICAL LAYER

ASSIGNMENT 2

1. What is Physical ? Explain various functions of the Physical Layer .
2. Define transmission impairment. Explain the causes of impairments. 
3. Differentiate Analog and Digital Signal.
4. Q1 : Consider a noiseless channel with a bandwidth of 6KHz transmitting a signal with two signal levels. What can be the maximum bit rate?
5. Explain Guided and Unguided transmission media in detail.
6. Write short  note on :

FDMA

WDMA

TDMA

CDMA

7. Explain switching with all three switching types . 
8. Briefly explain Cable Network, Telephone Network and Mobile Network.