MI0035-Computer Networks

Spring-2016

Get solved assignments at nominal price of Rs.125 each.

Mail us at: subjects4u@gmail.com or contact at

09882243490

Master of Business Administration- MBA Semester 3

MI0035-Computer Networks

(Book ID: B1973)

Assignment (60 Marks)

Note: Answer all questions must be written within 300 to 400 words each. Each Question carries 10 marks 6 X 10=60

Q1. Explain the concept of computer networks. Briefly explain the different types of networks.

Concept of computer networks - 6

Types of computer networks - 4

Answer. In a general sense “network” refers to a group of objects, individuals connected to each other. Similarly a cluster of interconnected computers that communicate with one another through a shared communication link for data exchange is known as a computer network.

A computer network requires two or more individual computers having some data to share. The individual computers must be connected through a physical pathway called the transmission medium. All the

Q2. Write a brief note on seven layered OSI reference model. Explain the role of each layer.

Define seven layered OSI reference model - 3

Explain the role of 7 layers - 7

Answer. The OSI reference model emerged as a first step towards international standardisation of the protocols used in the various layers by the ISO. The model is called the ISO OSI reference model as it deals with connecting open systems, that is, systems open for communication with other systems. An open system is a set of rules that is used for communication of two different systems (the difference is in their

Q3. Write short notes on the following:

a. Subnet

b. Super netting

c. Subnet masks

d. Dynamic NAT

e. Domain Name System

Answer. a. Subnets

A network that exists within the Class A, B, or C network is called a subnet. It can also be defined as a network within a network. Subnets are created to extend network IDs by using host bits of one or more Class A, B, or C. Therefore, subnets can have a network ID of any length. All devices that have IP addresses with same prefix are defined as subnets. These are connected to the Internet by using the same shared network.

Q4. What is Dense Wavelength Division Multiplexing (DWDM)? What are the pros and cons of DWDM?

Concept of DWDM

Four pros of DWDM

Four cons of DWDM

Answer. DWDM: This refers to a technique that enables more than one wavelength to be added to a single-mode fiber to increase the capacity of the transmission path by a factor equal to the number of wavelengths added.

Pros and Cons of DWDM

Apart from

Q5. Explain the working of Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Protocol.

Working of CSMA/CD in a Flowchart

Explain the working in detail

Answer. The CSMA/CD protocol can be compared with a typical life scenario such as a group discussion during an interview. Suppose several candidates are sitting around the table. Every candidate must listen to the instruction for a while before speaking (Carrier Sense). After listening to the instruction, during a pause every candidate has an equal chance to participate in group discussion (Multiple Access). In the case

Q6. Briefly explain the functions of network management model.

Answer. Functions of network management model:

Fault Management

The main aim of fault management is to identify the network problems and notify it to the users. The fault management system, if possible, automatically fixes network problems. Fault management is the most widely implemented function of the network management system because faults frequently occur in a network. These

Spring-2016

Get solved assignments at nominal price of Rs.125 each.

Mail us at: subjects4u@gmail.com or contact at

09882243490