[pic] Course Title: DATA COMMUNICATION & NETWORKS Instructor: Pushpendra Sharma Term: Four [pic] Introduction: The course focuses on the term and practical orientation of Network Infrastructure and other software to enable students to apply the skills for Data Communication and knowledge to solve network problem in functional area of network management. Learning Objectives: The course will develop the skills to manage business telecommunication and network infrastructures.
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@yahoo.com Abstract With the advancement in internet technologies a new concept for socialization emerge called Online Social Networks‚ that provide the user with facility to interact with people around the globe. This interaction provides many constructive features but some negative aspects also exist. This paper describes the concept of privacy in Online Social Network. First‚ various privacy threats are explored and brief description of these threats is provided. Then‚ different models‚ related
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| | WRET3105 NETWORK AND DATA COMMUNICATION Assignment 4 Semester 1‚ session 2011/2012 Submitted by: Student | : | Nadiah binti Zainudin | Student No. | : | WET080011 | Instructor | : | Saeid Abolfazli | Date | : | 2nd Nov 2011 | ------------------------------------------------- Questions: 1. What is QoS? Why QoS is important and how QoS is measured? 2. What is management of QoS? ------------------------------------------------- -------------------------------------------------
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Chapter 1: Forouzan Data Communications and Networks TRUE/FALSE 1. Protocols are rules that govern a communication exchange. ANS: T 2. The performance of a data communications network depends exclusively on the skills of the users. ANS: F 3. Viruses are a network timing issue. ANS: F 4. Protection of data from a natural disaster such as a tornado is a network management issue. ANS: F 5. Data communication is the transfer of data from one device to another via some
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following is a data link layer function? A) packetizing B) error and flow control C) medium access control The data link layer is responsible for _______ delivery. C) hop-to-hop The data packet at the data link layer is usually called a _______. A) frame The protocol for obtaining the physical address of a node when the IP address is known is called _______. C) ARP A signal can lose energy due to the resistance of the medium. This is called _______. D) attenuation _______ can cause errors
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to perform their respective obligations under the contract‚ failing which legal action can be taken. A failure or refusal to perform one’s obligations under the contract will be called a "breach" of the contract. Contract breaches have wide ranging consequences both legal and practical to the parties to the contract. This article will address the various effects that contract breaches will have on businesses. Some of them are set out below:- (a) Injury to reputation - It is not good for a business’
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COMMUNICATION NETWORK Communication network are large system distributed in wide area which are designed to send and receive information from one computer to another computer and this computers are called host. Network achieves this providing a set of rules which in terms of networking are called protocols. This protocols are set for communication which every host should follow and participate. The network is made up of two types of components: Nodes and
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COMPUTER | NETWORK AND COMMUNICATION | | NOTES | | | | | INDEX (COMMUNICATION AND NETWORK CONCEPT) I.NETWORK II.EVALUATION OF NETWORKING 1.ARPANET III. SWITCHING TECHNIQUES 1. CIRCUIT 2. PACKET 3. MESSAGE IV.TRANSMISSION MEDIA: Two types of media GUIDED MEDIA 1.TWISTED PAIR CABLE
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and 0 means OFF. In a network where digital devices exist‚ digital signalling will be used. Dependant upon the encoding method 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
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How can email communication affect your business? Email is now one of the fastest ways to gain or lose potential customers because of its ability to deliver information fast to an enormous amount of people. After sending an email you are no longer in control of the effects of the message and can only wait in suspense. An employee of your company started off his/her day in a bad mood. A potential customer emails them with a trivial question and they reply with a brash tone. Do you think that the
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