The IT Stuff

As streaming media applications such as video and multi-media become common, the demands for faster data rates will increase and create new applications that will benefit from the higher bandwidth offered by category 6.
Difference between category 5e and category 6 is in the transmission performance, and extension of the allowed bandwidth from 100 MHz for [...]

Category 6 cable, commonly referred to as Cat-6, is a cable standard for Gigabit Ethernet and other network protocols that is backward compatible with the Category 5/5e and Category 3 cable standards. CAT6 is an Ethernet cable standard defined by the Electronic Industries Association and Telecommunications Industry Association (commonly known as EIA/TIA). CAT6 is the [...]

Network topologies are categorized into the following basic types:

bus
ring
star
tree
mesh

Bus Topology:
In Bus networks  a single cable, the backbone functions as a shared communication medium that devices attach or tap into with an interface connector. A device wanting to communicate with another device on the network sends a broadcast message onto the wire [...]

WLAN uses the radio waves at the Physical layers
WLAN use CSMA/CA(collision Avoidance) for Media Access
LAN use CSMA/CD(collision Detection) for Media Access
WLAN use Two way radio (half duplex ) for communication.
WLAN have the following problems

Coverage Probelms
Interference
Noise

To Share bandwidth Access point are used in WLAN instead of Ethernet Hub in LAN
WLANs must meet country specific RF regulation [...]

A unicast packet has a single source IP address and a single destination IP address.A multicast packet has a single source IP, but it has a multicast destination IP address that will be delivered to a group of receivers.
In Multicast multiple hosts can receive the same multicast stream (instead of individual streams) to save bandwidth.
Internet [...]