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bigikes | CompTIA A+ | Module 2.2 - Characteristics or Connectors / Cables

By: bigikes | Related Course: CompTIA A+ | Published: June 14, 2016 | Modified: June 14, 2016
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Notepad5-4-3 rule

The 543 rule also referred to as the IEEE way (contrary to the Ethernet way) is a design guideline for Ethernet computer networks covering the number of repeaters and segments on shared-access Ethernet backbones in a tree topology. It means that in a collision domain there should be at most 5 segments tied together with 4 repeaters, with 3 segments containing active senders (i.e. terminals).



Asynchronous transfer mode (ATM) is a switching technique used by telecommunication networks that uses asynchronous time-division multiplexing to encode data into small, fixed-sized cells. This is different from Ethernet or Internet, which use variable packet sizes for data or frames. ATM is the core protocol used over the synchronous optical network (SONET) backbone of the integrated digital services network (ISDN).

NotepadFire Safety

PVC cables is used mostly in homes and Plenum is used in Business places in walls and in the celling.


STP= Shielded twisted pair

UTP=Unshielded twisted pair 

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