12.7 Advantages: (1) An adaptive routing strategy can improve performance‚ as seen by the network user. (2) An adaptive routing strategy can aid in congestion control. Because an adaptive routing strategy tends to balance loads‚ it can delay the onset of severe congestion. Disadvantages: (1) The routing decision is more complex; therefore‚ the processing burden on network nodes increases. (2) In most cases‚ adaptive strategies depend on status information that is collected at one place but used
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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
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ASSIGNMENT NO. 1 Victory Training and Development Institute Kingdom of Bahrain Chartered Institute of Personnel and Development Written Handout (Word Count: 668) Assignment submitted in part fulfillment of the requirement for the (3RAI) Core Unit – (3RAI)- Foundation Level Prepared By | Ahmed Malek | Programme Title | Recording‚ Analyzing‚ and Using HR Information | Assignment Title | 3RAI | CIPD Membership No. | | Personal Tutor | | Submission | 1st Attempt |
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The Data Protection Act (UK – 1998‚ Malta – 2001): The DPA concerns the “collection‚ recording‚ organization‚ storage‚ adaptation‚ alteration‚ retrieval‚ gathering‚ use‚ disclosure‚ blocking‚ erasure or destruction of personal data”. The purpose of the Data Protection Act: a. The purpose of the DPA is to protect living individuals against the misuse of their personal data. Examples of such misuse could include exposing of personal data without obtaining prior permission from the data subject
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digitals signals are represented by the base 2 numbering system “Binary”. Binary bits are shown as 1 or 0‚ where 1 means ON 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‚
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its bandwidth. What is attenuation? Define channel capacity. What key factors affect channel capacity? Problems: Figure 1 shows the frequency domain function for a single square pulse. The signal pulse could represent a digital 1 in a communications system. Note that an infinite number of higher frequencies of decreasing magnitudes is needed to represent the single pulse. What implication does that have for a real digital transmission system? Suppose that a digitised TV picture is to be
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knowledge and understanding on confidentiality. There are different types of confidentiality. It is the right of every parents/carer that information about them is respected‚ kept in confidence‚ safely‚ securely and in the accordance with the Data Protection Act 1998. A teaching assistant needs to understand how important it is to respect confidentiality if we went to gain and keep respect of other adults and parents in the settings‚ although it is the most difficult to maintain. There is also legislation
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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
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Purpose and requirements for keeping financial records Keeping accurate and properly managed records will contribute the success of business in following ways: • Highlights the financial problems and enable remedies to be put in place • Provides valuable information for the future sale of your business where that is required • Helps to mange things shortly and saves your time • Fulfils the obligations as to taxation law • Provides information of management and helps to take further decisions
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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
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