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    • Presentation Layer

      Presentation Layer

      The presentation layer is one of seven layers of the OSI (Open Systems Interconnections) Model and is found between the application layer and the session layer. The presentation layer is commonly used for encryption and decryption as well as the conversion of file formats. The presentation layer is considered the last layer in which data

    • 192.168.1.1 – What Are its Uses and Why is it Important?

      192.168.1.1 – What Are its Uses and Why is it Important?

      The 192.168.1.1 IP address is a default commonly used by Linksys routers. Linksys is now a division of Cisco, Incorporated and makes a large number of the broadband routers used throughout the world. The address is not exclusive to Linksys, but most other major router manufacturers use different default addresses for configuration of home or

    • How Video Conferencing Works

      How Video Conferencing Works

      Video conferencing has become popular over the last decade. Video conferencing is when two or more parties communicate in real time in separate locations with both video and audio signals. Technology Used in Video Conferencing Video conferencing works by using a few different technologies. Some of these technologies are hardware, others technologies involved in the

    • LAN Switching and Switch Types

      LAN Switching and Switch Types

      Switches represent the features and technologies that can be used to respond to the requirements in emerging network design. Some basic operations and technologies of switches are as follows: Fast Convergence: Switches stipulate that the network must adapt quickly to network topology changes. Deterministic Paths: Switches provide desirability of a given path to a destination for certain

    • Network Cable is Unplugged

      Network Cable is Unplugged

      When an error message saying, “Network cable is unplugged” is displayed, it generally means that the computer can detect that there is an ASDL and/or Cable Connection pre-configured on the computer, but an Ethernet cable and/or a cable that is supposed to be plugged into the modem is unplugged. In the case that all of

    • ERP Systems

      ERP Systems

      ERP (Enterprise Resource Planning) is a process in which business management is integrated with technology. ERP systems, therefore, allow this integration to be done effectively and without fault. An effective ERP system requires that many aspects of the business are connected. To have the best architecture for the organization, the following must be part of

    • Refresh Rate

      Refresh Rate

      The Refresh rate is the number of times a display's image is repainted or refreshed per second. As it denotes a frequency of a process, the refresh rate is expressed in hertz. That is, a refresh rate of 75 Hz means the image is refreshed 75 times in one second. For academic interest, it should

    • Implementing Public Key Infrastructure

      Implementing Public Key Infrastructure

      An Overview on the Public Key Infrastructure (PKI) A set of components, standards, and protocols make up the Public Key Infrastructure (PKI), which protects data as it is transmitted over the network. The PKI is an integral aspect of security within a network. Digital certificates form the basis of the PKI because these certificates use

    • C Band

      C Band

      C Band is the original frequency allocation for communications satellites. C-Band uses 3.7-4.2GHz for downlink and 5.925-6.425Ghz for uplink. The lower frequencies that C Band uses perform better under adverse weather conditions than the Ku band or Ka band frequencies. C Band Variants Slight C Band frequency variations are approved for use in various parts

    • How to Fix a Printer Offline Problem

      How to Fix a Printer Offline Problem

      A printer that will not connect and/or displays the “Printer Offline” error message can be a nuisance, especially if the user has tried everything he/she can think of in order to fix it. Fortunately, users have several techniques at their disposal to repair this problem.   Ensure that Cables are Connected Although this is the

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