Network Topology Is a way of Connecting Computers in the Network. and Every Design has its Own Feature. But here is Three main type of Topology. BUS TOPOLOGY-  Bus Topology is Cost Effective Topology. Because Here We Use Only Single Cable For Connecting all the Computers. But Here is also a Disadvantage that If Backbone Cable (main wire) Will Break all the Communication Will Stop On Next all Node. STAR TOPOLOGY- As...

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...

Twisted Pair Cable was invented by Graham Bell. As From Name anyone can Easily Understood This is a type of Cable Which is Twisted on other Cable. But the question is why they are Twisted. The Reason behind twisting is Cancelling out ,Electromagnetic Interference from External Sources and Electromagnetic radiation from UTP (unshielded twisted pair cable ) cable. UNSHIELDED TWISTED PAIR UTP Cable are used for Networking  and Traditional Telephone....

CCNA means Cisco Certified Network Associate is a Entry Level Certification for Network Engineers. some low level certificates are also available Like Cisco Certified Entry Networking Technician (CCENT) and  Cisco Certified Technicians (CCT).  CCNA Routing and Switching are most common requirement for any other Associate level course. Some other course related to Associate level are as:  CCDACCNA CloudCCNA CollaborationCCNA CyberOpsCCNA...

                    Network bridge is a device that are used to connect two devices in two different Collision Domain. A Bridge work at the Data-Link layer of the OSI model.Bridge can read MAC address. So When any Ethernet Frame come It inspect whether to forward it or stop the frame. If Destination address is another part of the segment Bridge Forward the Ethernet Frame on that segment.  ...

Hub is a device that are used for same Collision domain.It is basically a center point in the LAN. It is also used in network as Repeater So It Repeat Electrical Signal that comes in one port out all other port. HUB are layer one device in OSI model  and not uses Ethernet frame or addressing. That's why they can't decide which port a signal should be sent . Hub send data through broadcast. Hubs are currently not used because It create unnecessary...

In Half Duplex data can be send to only in one direction. So It can be Describe as If data is receiving on any node of the Network then at the same time You can not send data to any other Node. This type is called Half duplex. Some example that follow half duplex mode are HUB.(but currently hub are not in use or rarely used in Ethernet.) In half duplex mode only one cable are used for both send and receive data. In full duplex mode any Node in the Network...