Exam Details

Subject Data Communication and Computer Networks
Paper
Exam / Course Post Graduate Diploma in Computer Application (PGDCA)/ Advance Diploma inComputer Applications (ADCA) / Masters in Computer Applications (MCA)
Department School of Computer and Information Sciences (SOCIS)
Organization indira gandhi national open university
Position
Exam Date June, 2016
City, State new delhi,


Question Paper

A system has an n-layer protocol hierarchy. Application generates messages of length M bytes. At each of the layers, an h-byte header is added. What fraction of the network bandwidth is filled with headers?

Draw Manchester and Differential Manchester encoding for the following bit stream:

0 1 0 0 1 1 0 0

How do connection oriented services run over connectionless services in TCP/IP reference model?

Find the CRC for the data polynomial x^4 x^2 x where the generator polynomial is x^3 1.

Explain the concept of piggybacking in detail.

Why should the leaky bucket algorithm allow just one packet per tick, independent of the size of the packet?

What is cryptography? Explain symmetric key cryptography in detail.

Explain various modes of data transmission in detail.

How does slotted Aloha improve the performance of a system over pure Aloha Also derive the expression for throughput computation.

What is the difference between congestion control and flow control?

Explain DES algorithm.

What is a digital signature? What are the benefits of using digital signatures?

How is flow control at transport layer different from flow control at data link layer?

Explain the functioning of sliding window protocol in detail.

Explain the concept of frequency division multiplexing in detail.

What are the features of a transparent bridge?

What do you mean by window management in case of TCP protocol How is TCP window management used for congestion control?

Compare virtual circuit and datagram subnet.

Differentiate between SSL and TLS.


Departments

  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • National Centre for Disability Studies (NCDS)
  • School of Agriculture (SOA)
  • School of Computer and Information Sciences (SOCIS)
  • School of Continuing Education (SOCE)
  • School of Education (SOE)
  • School of Engineering & Technology (SOET)
  • School of Extension and Development Studies (SOEDS)
  • School of Foreign Languages (SOFL)
  • School of Gender Development Studies(SOGDS)
  • School of Health Science (SOHS)
  • School of Humanities (SOH)
  • School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
  • School of Journalism and New Media Studies (SOJNMS)
  • School of Law (SOL)
  • School of Management Studies (SOMS)
  • School of Performing Arts and Visual Arts (SOPVA)
  • School of Performing Arts and Visual Arts(SOPVA)
  • School of Sciences (SOS)
  • School of Social Sciences (SOSS)
  • School of Social Work (SOSW)
  • School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
  • School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
  • School of Translation Studies and Training (SOTST)
  • School of Vocational Education and Training (SOVET)
  • Staff Training & Research in Distance Education (STRIDE)

Subjects

  • Accounting and Financial Management
  • Advanced Database Design
  • Advanced Discrete Mathematics
  • Advanced Internet Technologies
  • Artificial Intelligence and Knowledge Management
  • Communication Skills
  • Computer Graphics and Multimedia
  • Computer Organisation & Assembly Language Programming
  • Data and File Structure
  • Data Communication and Computer Networks
  • Database Management System
  • Database Management Systems
  • Design and Analysis of Algorithm
  • Discrete Mathematics
  • Elements of Systems Analysis & Design
  • Numerical and Statistical Computing
  • Object Oriented Analysis and Design
  • Object Oriented Technologies and Java Programming
  • Operating System Concepts and Networking Management
  • Operating Systems
  • Parallel Computing
  • Principles of Management and Information Systems
  • Problem Solving and Programming
  • Software Engineering
  • Systems Analysis and Design