Data Communication and Networking question 2020

 Data Communication and Networking question 2020

Sub Code: - 1618502


Time : 3Hrs

  Semester  V/CSE  


Full Marks : 70

Pass marks : 28


Group A


Choose the most suitable answer from the following options: -   (1*20=20)

(i) Set of rules that govern data communication:

(a) Multi -point

(b) Point - point

(c)  (a) and (b)

(d) None of the above

(ii) A television broadcast is an example of:

(a) Half duplex

(b) Full duplex

(c) Simplex

(d) Automation

(iii) Data flow in two devices can be occur in:

(a) Simplex

(b) Half duplex

(c) Full duplex

(d) All of the above

(iv) Data communication in a building is defined by:

(a) LAN

(b) MAN

(c) WAN

(d) None of the above

(v) Which was the first network:





(vi) Device may be arranged in given topology:

(a) Mesh

(b) Ring

(c) Bus

(d) All of the above

(vii) It is an Idea or concept that is pre cursor to an internet standered:

(a) RCF

(b) ID

(c) RFC

(d) None of the above 

(viii) Packet switching network can be divided into:

(a) Five part

(b) Two part

(c) Three part

(d)Four part


(ix) Each packet is treated independently:

(a) Circuit switching

(b) Datagram switching

(c) Frame switching

(d) None of the above

(x) The path in the circuit are separated from on another spatially

(a) Time division

(b) Two dimensional

(c) Space division

(d) Three dimensional

(xi) Which are defines two types of addressing Global and Local

(a) Datagram

(b) Virtual circuit

(c) Circuit switching

(d) None of the above

(xii) Packet switching has how many types of components

(a) 4

(b) 3

(c) 2

(d) None of the above

(xiii) In a banyan switch, four inputs and four output have, how many stages:

(a) 2

(b) 4

(c) 8

(d) 3

(xiv)A switch in a datagram network uses routing tables that is based on:

(a) Destination

(b) Source

(c) Local

(d) None of the above

(xv) The network layer is the internet which is design as:

(a)  Circuit switching

(b) Datagram

(c)  Virtual circuit

(d) None of the above

(xvi) The local telephone network is an example of:

(a)  Packet switching

(b) Circuit switching

(c)  Both (a) and (b)

(d) Line switched

(xvii) Which is not an application layer protocol:

(a)  HTTP

(b) SMTP

(c)  FTP

(d) TCP

(xviii) E-mail is:

(a)  Loss tolerant application

(b) Bandwidth sensitive application

(c)  Electronic application

(d) None of the above

(xix) To deliver a message to correct application program on the host consult address of:

(a)  IP

(b) MAC

(c)  Port

(d) None of the above

(xx) Which multiplexing techniques sends digital signal:

(a)  TDM

(b) FDM

(c)  WDM

(d) None of the above




Answer all Five Questions: -                         (5*4=20) 


2.  What is communication and communication system? Explain it.


Differentiate signal and data with examples.


3.  With the help of proper diagram explain Optical Fiber.


What do you mean by unguided media? Explain it.


4. What do you mean by Swift Key? Explain with any suitable example.


What do you mean by multiplexing? Explain it.


5.  Differentiate Frequency division multiplexing and time division multiplexing.


What do you mean by message switching? Describe it with suitable diagram.


6. Write the characteristics of different type of Transmission mode.


What do you mean by layered solution? Explain need of its.


Group:- "C"


Answer all Five Questions: -                         (5*6=30) 


7.  What do you mean by layers solution? Explain need of its.


Differentiate OSI model and TCP/ IP layers.


8.  How does HDLC works? Explain it with suitable diagram.


Write short notes on:

a.    Repeater

b.    LAN hardware


9.  What do you mean by ISDN? Explain it.


What do you mean by computer network security? Explain it.


10.  How does dynamic routing work? Explain it.


Differentiate static and dynamic routing.


11.  What do you mean by LAN topology? Explain different types of LAN topology.


What is virtual private network? Explain it.





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