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Carrier Sense Multiple Access/Collision Avoidance
a) Necessary since wireless LANs cannot implement CSMA/CD
b) Collision detection requires increased bandwidth requirements
c) Collisions might not be detected due to obstacles
d) Distance between stations may prevent collisions from being heard
e) Collision avoidance is accomplished through network allocation vector (NAV)
Q. Use of Infrared? - Frequencies among 300 GHz and 400 THz - Short-range communication - High frequencies can't penetrate walls - Necessitate line-of-sight propagati
What are the popular topologies other than basic Topologies? Apart from basic topologies some other topologies worth considering are: mesh topology (each device linked to all o
What are local variables? Local varaiables are those which are declared within a block of code like methods. Local variables should be initialised before accessing them.
Post Office Protocols Version In computing the post office protocol version 3 (POP3) is an application layer internet standard protocols used by local e mail clients
What is the major issue with routing by rumor?
advantage og stored program control automation
Normal 0 false false false EN-IN X-NONE X-NONE
Unguided Media: Wireless - A Wireless communication transporting electromagnetic waves without a physical conductor Wireless Propagation Methods - Ground - radio
What is data encapsulation? Data encapsulation is the method of breaking down information into smaller manageable chunks before it is transferred across the network. It is also
10Base-T: Twisted Pair Ethernet Most popular standard simplest to install and reconfigure Star topology LAN utilize UTP cable no need for AUI It supports data rag
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