Bachelors Level/Second Year/Fourth Semester/Science bit/fourth semester/network and data communications/syllabus wise questions
Bachelors In Information Technology
Institute of Science and Technology, TU
Network and Data Communications (BIT254)
Year Asked: 2080.2, syllabus wise question
Application layer
1.
What is SNMP and how does it work?[5]
Data link layer
1.
Explain the design of Selective Repeat ARQ. Illustrate with suitable flow diagram example[10]
2.
What is MAC-address? The message sequence is 1011011 and generator polynomial G(X) = x3+x2+1. Calculate the transmitted encoded frame[5]
Fundamental of Data Communication
1.
List different categories of networks and explain[5]
Network layer
1.
What are the features of Distance Vector Routing protocol? Explain Distance Vector Routing protocol with relevant example. What are its disadvantages?[10]
2.
How IGMP allows devices to join a multicast group? Explain[5]
3.
Explain different phases of packet switching. How packet switching works?[5]
Physical Layer and Media
1.
Explain the concept of Binary Phase Shift Keying. Represent bit sequence 111000110 by the following waveform a.) NRZ-I, b) Differential Manchester[10]
2.
Explain Frequency Division Multiplexing with required figure[5]
3.
Write short notes on a.) Shannon CapacityWrite short notes on b.) Connectionless service[2.5+2.5]
Transport layer
1.
Differentiate between reliable and unreliable protocol. Provide example of each. How does protocol check for errors?[5]
2.
A pure ALOHA network transmits 200-bit frames using a shared channel of bandwidth. Find throughput if system produces frames per second. Vulnerable time of pure ALOHA?[5]