Network Connectivity

Network Connectivity

1. Coaxial cable

   • Consists of a center conducting wire surrounded by insulation. Which is a grounded shield of braided wire Shield minimizes electrical and radio frequency interference which makes it the sturdiest wire use
     • Coaxial cable is similar to the wiring used for the cable TV. Often found in the network infrastructure.

2. Twisted-pair wire

   • similar to telephone wire except that telephone wire has only four wires.
     • Consists of four twisted pairs of copper wire. Wire is insulated and bundled together with an RJ-45 termination.
       • the wire comes in various levels of quality and capacity. The minimum recommended standard is category 5 cable. Common connection medium used in LANs.

3. Fiber Optic cable

   • Uses glass threads to transmit data on the network, consists of a fiber optic core that is surrounded by a plastic protective covering
     • Is much faster than its metal counterparts but is more expensive and much more fragile.Easily damaged by kinking and twisting of the cable
       • Most often used in the infrastructure of the network, in network closets, and in large archive or computer rooms

4. Electromagnetic waves

   • one advantage is that mobility and convenience. Connection has a limited range because of Wall thickness and composition and the distance from the source must be taken into account when using wireless access points.
     • Connection is made by using infrared or radio frequencies No physical cabling is needed, but each device must contain a wireless transmitter and receiver

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