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How to protect computer Hardware by threats
The first component in the computer system vulnerable to attacks or threats, and most important to be protected, is the hardware.
What is a LAN? A LAN is a Local Area Network, within a single building or a specific confined space. LANs typically comprise only one transmission media type like coaxial cable
Source quench is the process where the destination router, or end internetworking device will "quench" the date from the "source", or the source router. This usually occurs when th
Asynchronous or Statistical Time Division Multiplexing As we have seen synchronous TDM does not guarantee that the full capacity of a link in sued. In fact it is more like
802.11b HR DSSS a) High-rate DSSS using a 2.4 GHz band b) Similar to DSSS excluding for encoding method c) Uses complementary code keying (CCK), encoding 4 or 8 bits to
Application of Satellite Communication started with the installation and commissioning of STD- “B” Earth Station having 11m diameter antenna in 1982, Initially with to only three
Why Routine security audits are essential It is essential that regular security audits are conducted to find out physically which computer is connected and permits access to
Explain Persistence timer? To deal with the zero-size windows What if a receiver advertises that the window size is 0 (by sending ACK) and this ACK is lost? - A
Transparent Bridges & Learning Bridges - Builds table by examining destination as well as source address of each packet it receives - Learning bridges - If address is not
Overview of Data transmission network model A network is a combination of hardware and software that sends data from one location to another. The hardware consists of the physi
Need for standards - Over the past couple of decades several of the networks that were built used different hardware and software implementations therefore they were incompatib
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