Data Communication and Networking

Satisfactory Essays
DCN VIVA QUESTIONS 1. What do you mean by data communication? Ans: It is the exchange of data between two devices via some form of transmission medium such as wire cable. The communicating system must be part of a communication system made up of a combination of hardware and software. The effectiveness of a data communication system depends on three fundamental characteristics: delivery, accuracy and timeliness. 2. What is simplex? Ans: It is the mode of communication between two devices in which flow of data is unidirectional. i.e. one can transmit and other can receive. E.g. keyboard and monitor. 3. What is half-duplex? Ans: It is the mode of communication between two devices in which flow of data is bidirectional but not at the same time. ie each station can transmit and receive but not at the same time. E.g walkie-talkies are half-duplex system. 4. What is full duplex? Ans: It is the mode of communication between two devices in which flow of data is bidirectional and it occurs simultaneously. Here signals going in either direction share the capacity of the link. E.g. telephone 5. What is a network? Ans: It is a set of devices connected by communication links. A node can be a computer or any other device capable of sending and/or receiving data generated by other nodes on the network. 6. What is distributed processing? Ans: It is a strategy in which services provided by the network reside at multiple sites. 7. What is point to point connection? Ans:It provides a dedicated link between two devices. The entire capacity of the link is reserved for transmission between the two devices e.g. when we change the TV channels by remote control we establish a point to point connection between remote control and TV control system. 8. What is multipoint connection? Ans: In multipoint connection more than two specific devices share a single link. Here the capacity of the channel is shared either separately or temporally. 9. What is a topology?

Ans: Topology of a network

You May Also Find These Documents Helpful

  • Powerful Essays

    Don't forget to check out the Online Learning Center, www.mhhe.com/forouzan for additional resources! Instructors and students using Data Communications and Networking, Fourth Edition by Behrouz A. Forouzan will find a wide variety of resources available at the Online Learning Center, www.mhhe.comlforouzan Instructor Resources Instructors can access the following resources by contacting their McGraw-Hill Representative for a secure password. PowerPoint Slides. Contain figures, tables, highlighted…

    • 59903 Words
    • 240 Pages
    Powerful Essays
  • Better Essays

    Net Neutrality Paper Data Communications and Networking Sharath chander reddy konda Wilmington University Table of Contents: Introduction - 3 Do you suspect your Internet speed has been, reduced at any time? - 5 Are you aware of any annoying piracy protections? -5 What are your opinions on each?…

    • 1339 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    Data communication and networking 7040 Week 4 assignment: Lab exercise Introduction: All network administrators must focus the rules and their system and network administrations and clients will discover satisfactory. These operational conditions can be viewed as ordinary for that system. Studies have demonstrated that system supervisors are wagering on expanded transmission capacity as the answer for system issues. A decently characterized and appropriately executed system testing…

    • 430 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    OSI (TCP/IP) model: a. Route determination – Network Layer. b. Flow Control – Data Link and Transport Layer. c. Interface to Transmission Media – Physical Layer. d. Provides access for the end user – Application layer. 4. Match the following to one or more layers of the OSI (TCP/IP) model: a. Reliable Process to process message – Transport Layer. b. Route Selection – Network Layer. c. Defines Frames – Data Link Layer. d. Provides User services Such As Email and File Transfer – Application…

    • 280 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Business Data Communications & Networking - Assignment I Chapter I Question1: How can data communications networks affect businesses? Answer: Data communications networks facilitate more efficient use of computers and improve the day-to-day control of a business by providing faster information flow. They also provide message transfer services to allow computer users to talk to one another via email, chat and video streaming. It helps business have more control & provide faster online…

    • 1388 Words
    • 6 Pages
    Powerful Essays
  • Powerful Essays

    IST 304 Communications and Networking Summer 2013 Research Paper Looking ahead; secure data transmission in the era of HIE with the view to enhance health care efficiency Abstract Health information exchange (HIE) is the driving force behind the mobilization of electronic health data across hospitals, laboratories and public health agencies. The Health Information Technology for Economic and Clinical Health (HITECH) Act has provided financial incentives which enable the adoption…

    • 4993 Words
    • 20 Pages
    Powerful Essays
  • Satisfactory Essays

    Data Communication

    • 6574 Words
    • 27 Pages

    for67757_fm.fm Page i Saturday, January 7, 2006 12:00 AM DATA COMMUNICATIONS AND NETWORKING for67757_fm.fm Page ii Saturday, January 7, 2006 12:00 AM McGraw-Hill Forouzan Networking Series Titles by Behrouz A. Forouzan: Data Communications and Networking TCP/IP Protocol Suite Local Area Networks Business Data Communications for67757_fm.fm Page iii Saturday, January 7, 2006 12:00 AM DATA COMMUNICATIONS AND NETWORKING Fourth Edition Behrouz A. Forouzan DeAnza College with…

    • 6574 Words
    • 27 Pages
    Satisfactory Essays
  • Better Essays

    Data Communications

    • 6424 Words
    • 26 Pages

    used, a high voltage on a communications medium can represent a logical 1 and a low voltage of can represent a logical 0. Different methods of encoding exist these are used for different types of communication between electrical devices. Distortion, noise, and cross talk on a cabling medium are factors that prevent the accuracy of transmitted data to be intact. For these reasons different encoding methods exist. An example is when 2 wires are used to transmit music data to a speaker Digital signals…

    • 6424 Words
    • 26 Pages
    Better Essays
  • Satisfactory Essays

    Data Communications

    • 469 Words
    • 2 Pages

    Introduction Data communications (Datacom) is the engineering discipline concerned with communication between the computers. It is defined as a subset of telecommunication involving the transmission of data to and from computers and components of computer systems. More specifically data communication is transmitted via mediums such as wires, coaxial cables, fiber optics, or radiated electromagnetic waves such as broadcast radio, infrared light, microwaves, and satellites. Data Communications = Movement…

    • 469 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    data communication

    • 640 Words
    • 3 Pages

    What is Data Communications? Next Topic | TOC The distance over which data moves within a computer may vary from a few thousandths of an inch, as is the case within a single IC chip, to as much as several feet along the backplane of the main circuit board. Over such small distances, digital data may be transmitted as direct, two-level electrical signals over simple copper conductors. Except for the fastest computers, circuit designers are not very concerned about the shape of the conductor or…

    • 640 Words
    • 3 Pages
    Satisfactory Essays