Characteristics of WAN

WAN stand for Wide Area Network. It is a data communication network that operates beyond the geographic scope of LAN (Local Area Network).


3 Characteristics of WAN

1. It connect devices that are separated by a broader geographical area than a LAN

2. It use Carriers such as phone companies or network providers

3. It use serial connection.


WAN and OSI (Open System Interconnection) Layer

WAN focus on layer 1 which is physical and layer 2 which is data link.

Data Link:

Standard describe how data is encapsulated for transmission to a remote location. Example is frame relay, ATM (Asynchronous Transfer Mode) and HDLC (High Level Data Link Control).


Standard describe how to provide electrical, mechanical and operational connections

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