This blog is in continuation to the Layer 2 Devices: Explained. If you haven’t read the previous blog, do read it now and get familiar with the crucial aspects of IT to become a skilled IT expert. Let’s Discuss a Hub Let’s learn the Advantages and Disadvantages of a Hub- What are the advantages of a Hub? … Read more
We all know that Private Addresses are not routable to the internet, but within a LAN network, we always use Private IP Addresses. Sounds contradictory? How can a PC configured with a Private Address access the internet? To solve this purpose NAT got introduced. What is Network Address Translation? Network Address Translation (NAT) is a … Read more
In a computer network, we have different networking devices working at different layers. Layer 2 devices are the devices that transmit the frame with the help of MAC Address, also called physical address. When frames arrive at the layer 2 device, it looks for the destination MAC Address and makes a forwarding decision accordingly. But … Read more
What is SNMP?- We understood the concept of network management and its importance. Network management plays an important role in making a network work efficiently by preventing faults. But how do network managers manage a network? It gets managed using a protocol called Simple Network Management Protocol (SNMP). What is Simple Network Management Protocol … Read more
Monitoring, testing, and troubleshooting network devices to meet the requirement of an organization is known as Network Management. With 100s and 1000s of devices in a network, it is hard to manage all of them, but SNMP is a protocol that can make our life easier. What are the kinds of Network Management? Network Management … Read more
The network is nothing but a set of connected devices, and with time, these devices continue to increase. By connecting multiple devices, we have the problem of how to make two devices communicate with each other without affecting other devices, i.e., how to make one-to-one communication possible. Yes! We can create a point-point connection by … Read more
Suppose we have two departments in an organization- Sales and Marketing, connected as shown in the figure. The sales PC wants to broadcast a message for its department while the message has nothing to do with the marketing department, but what should the switch do in such circumstances? Yes, it broadcasts that message to each … Read more
What is Transmission Media? Transmission media is a medium that carries data from one device to another. It is a physical channel that helps to transmit data from transmitter to receiver. This physical channel can be wired or wireless, where data gets transferred in the form of electromagnetic signals. NOTE: The primary role of transmission … Read more
Network devices can get connected in different ways. The structure that defines how devices are connected is known as TOPOLOGY. Network Topology defines how devices, systems, and nodes are connected physically and logically to each other, impacting the efficiency, reliability, and security of communication infrastructure. Nodes are the switches and routers used to connect devices. … Read more
Before starting subnetting in computer network, let us grab some important concepts required for it. Conversion from Binary to Decimal Let us first understand how to convert a binary number into a decimal Convert 10011011 into decimal 27 26 25 24 23 22 21 20 128 64 32 16 8 4 2 1 1 0 … Read more
