Data Communication 1st Assignment Questions

                             I- ASSIGNMENT QUESTIONS

SUBJECT: Data Communication                         LAST DATE FOR SUBMISSION:13/08/2019

Class: B.E 3/4 Sec-II & III              Teacher: Daggubati Sirisha     Date Given: 8/08/2019

UNIT-I & II

 I -Short Answer Questions.(CO-1, -Remember,Understand,Apply)

1.Define Data Communication model and protocol architecture

2. Define Errors and types of errors

3.Enumerate different types of multiplexing technique
4. Define: Bit Rate, Baud Rate
5. Define Nyquiste Criteria
6. Define Channel Capacity
7. Why Layered concept is needed in protocol architecture

II-Long Answer Questions:(CO-1,CO3-Remember,Understand)

1. Explain the OSI and TCP reference model with neat diagram.

2. Write short notes on circuit switching, packet switching with timing diagram

3. Explain in detail 

a) Digital –Digital Encoding

b) Analog – Digital (PCM)

c) Digital – Analog (Keying) techniques

4. Explain various types of transmission media in detail

5. What is an error? Explain various error detection and correction techniques.