Tuesday 29 August 2017

WHAT IS THE BASIC TOPICS THAT CAN ASK IN CCNA FRESHER INTERVIEW?

ROUTER-


Router is a Layer 3 device that are Used to Connect two Different Network. And Show in Figure IT is The Standard Sign for Routers. 

SWITCH-

Switch is an Intelligent Device. that is Used to Handle Many PC and Computers Connected in a local area Network.Switch is a Intelligent Device Because it Can Learn MAC Address. and have Large Number of Ports. When Switch Installed in a LAN at Very First time It Broadcast Packets (APR packets).


MULTI-LAYER SWITCH-

Multi--Layer Switch is new generation device. it is layer 2 and layer 3 device. it can work as router and also can work as switch.


NIC-

Full Form of NIC Is NETWORK INTERFACE CARD. The MAC address is Embedded on It. And Internet is Not Accessible Without NIC. In One PC their will be Many NIC .

HUB-

HUB is a old Network Device. And Currently not Used in Companies. Because it broadcast the data So Unnecessary traffic was Created. and Divide Bandwidth to Each Computer Equally. So Bandwidth was wasted by HUB.

REPEATER-

Repeater is Device that is Used to Amplifie the Signal on Regular distance. Basically is a Modulator.That Maintain Signal Strength all over the Source to Distance Same.

MODEM-

It is Used to Convert Signal From Analog To Digital and Digital to Analog.

BRIDGE VS SWITCH-

Bridge and Switch are approximately same but having some different.
1.Bridge are software based                               1.  Switch are Hardware based
2.Bridge has less port.                                        2.  Switch has high Port.


So Friends this are few question and answer and this is very basic one. you need to learn more in deep on each topic. and many more 
 

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