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Hub
A hub is a small box that connects individual devices on network so that these devices can communicate with each other. Hub is an inexpensive device. It is commonly know as passive hub as it operates below physical layer of OSI model and works just as a connector. It is just a point where the signals coming from different network devices or terminals copied. A hub be thought of as the centre of a bicycle wheel where the spokes meet. Hub is also named as concentrator. Hub is placed in a network connecting in topology format.
Modulation and DeModulation
What are reasons behind using layered protocols Reasons for using layered protocols, using them leads to breaking up design problem into smaller more manageable pieces and lay
What is OSI and what role does it play in computer networks? OSI (Open Systems Interconnect) serves as a reference model for data communication. It is made up of 7 layers, with
Advanced Interface Module (AIM) socket This is an 100 pin internal socket. It is provide for plug in the Advance interface module card. Purpose of AIM card is concentrate in th
S t d "B" 6.4 m Ku-BAND EARTH STATION (2004) D-Sat (District Satellite Project) circuits for rural connectivity via satellite are in operation. Purpose of this project i
Consider a simple wireless data link using channel bandwidth of 40 kHz. The transmit power level is 20 dBm, the link attenuation is 40 dB and the SNRdB at the receiver is 20 dB.
Transmission robustness and security Unless properly designed, a wireless LAN might be interference prone and simply eavesdropped. The design of a wireless LAN must allow relia
How is final different from finally and finalize ()? Final is a modifier which can be applied to a class or a method or a variable. final class can't be inherited, final method
What are the Disadvantages of Microwaves? a. Attenuation by solid objects: birds, snow, rain, and fog. b. Reflected from flat surfaces such as water and metal. c. Diffra
What are different kinds of packets in EIGRP?
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