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CCNA Interview Questions

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Gateway
A device connected to multiple physical TCP/IP networks capable of routing or delivering IP packets between them.

Router
It’s a layer 3 device that connects 2 different networks and routes packets of data from one network to another. It breaks up Broadcast domain as well as Collision Domain. 

It’s a Hybrid device that combines the features of both bridges and routers. 

A subnet is the subdivision of an IP network. 

Frame relay is an industry standard, shared access, switched Data Link Layer encapsulation that services multiple virtual circuits and protocols between connected mechanism.
Frame relay is a packet-switched technology. 

The use of software, installed on PC or LAN server, that allows the PC to function as if it were dumb terminal directly attached to a particular type of mainframe.
Telnet is also called as terminal emulation. It belongs to application layer.

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