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Q. Multimode for transmitting optical signals?
- Multiple beams from light source travel through core at different paths
- Multimode step-index fiber
- Consequently beams reach the destination at different times and the signal mayn't be the same as that which was transmitted
- To address this problem and to permit for more precise transmissions, multimode graded-index fiber may be used
- Index demotes to the index of refraction
- Graded-index demotes to varying densities of the fiber highest at centre and decreases at edge
Q. What are the trends in Network Security ? Trends in Network Security Improved vigilance for virus infections Continual maturation of firewall technologies
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How LANs connected to Internet. Doubling every 18 months means factor of four gains in 3 years. In 9 years, gain is then 43 or 64, which leads to 6.4 billion hosts. My intuitio
Switched Ethernet In switched networks a switch device identifies the destination address and routes the frame to the specific port to which the destination station is conn
if the signal input to an amplifier is 0 dBm what is the power output in mW if the gain of the amplifier is 20 dB ?
Q. Explain about line coding? Line Coding Procedure of converting binary data to a digital signal DC Components Residual dc (direct-current) components or
WAN -Wide Area Network
Explain in detail about wireless network Think about unseen terminal problem. Imagine a wireless network consist of five stations, A through E, such that each one them is in r
Synchronous Synchronous traffic is able to consume a portion of the 100 Mbps total bandwidth of an FDDI network while asynchronous traffic can consume the rest. Synchronous
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