CCNA :) Be a Good Network Administrator

2.2.8 Cable Modem Coaxial cable is widely used in urban areas to distribute television signals. Network access is available from some cabl...

2.2.7 DSL Digital Subscriber Line (DSL) technology is a broadband technology that uses existing twisted-pair telephone lines to transport ...

2.2.5 Frame Relay With increasing demand for higher bandwidth and lower latency packet switching, communications providers introduced Fram...

2.2.3 Leased Line When permanent dedicated connections are required, leased lines are used with capacities ranging up to 2.5 Gbps. A poin...

2 .2 WAN Technologies 2.2.1 Analog Dialup When intermittent, low-volume data transfers are needed, modems and analog dialed telephone lin...

2.1.6 WAN link options Circuit switching establishes a dedicated physical connection for voice or data between a sender and receiver. Befo...

2.1.5  Packet and circuit switching  Packet-switched networks were developed to overcome the expense of public circuit-switched networks ...