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- Light source is LED (light-emitting diode) or a laser
- LEDs are cheaper however not as precise (unfocused) limited to short-distance use
- Lasers is able to have a narrow range and better control over angle
- Receiving device requires a photosensitive cell (photodiode) capable of receiving the signal
- Utilizes SC- Subscriber channel & ST-straight tip connectors
QUESTION a) List the seven layers of the ISO-OSI model and briefly describe the role of each layer b) Describe the functions of the following intermediate systems- Rep
objective practical questios answers
Sonet Devices STS Mux or DMux either multiplexes signals from multiple sources into an STS or demultiplexes an STS into different destination signals. Regenerator is a repea
Name the categories of Multiplexing? There are three categories of multiplexing a. Frequency Division Multiplexing (FDM) b. Time Division Multiplexing (TDM) i. Sync
Features 1. Simple to install; 2. Simple to configure; 3. Multiple applications from one user can implement; 4. Multiple users can each use PVM concurrently; 5. C, C++, and
Q. Define the Distance Vector Routing? Distance Vector Routing Every router periodically shares its knowledge about the entire internet with its neighbours Sharing
What is a Multiplexor
Can you explain in short what VPN is?
Interconnection Network An interconnection network is designed for transferring data between two processors in a Multi-stage network. Memory bottleneck is a fundamental limitat
Define Choke packet and Implicit congestion signalling Choke packet: A choke packet is a control packet produced at a congested node and transmitted back to a source node to co
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