Posts

WHAT IS A NETWORK OR IP ADDRESS?

 A network or IP address is a unique identifier assigned to each device connected to a network that uses the Internet Protocol for communication. IP addresses enable devices to locate and communicate with each other on a network, whether it's a local network (LAN) or the broader internet. There are two types of IP addresses: IPv4 and IPv6.  IPv4 Address An IPv4 address consists of four numbers separated by dots, with each number ranging from 0 to 255 (e.g., 192.168.1.1). This format provides approximately 4.3 billion unique addresses.  IPv6 Address An IPv6 address is a longer format designed to accommodate the growing number of internet-connected devices. It consists of eight groups of four hexadecimal digits separated by colons (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334), providing an almost limitless number of unique addresses. Purpose IP addresses serve two primary purposes: 1. **Identification**: They identify a device on a network. 2. **Location**: They provide t...
Post a Comment
Read more

WHAT IS AN OSI LAYER?

Image
  What is OSI model (Open Systems Interconnection)? OSI (Open Systems Interconnection) is a reference model for how applications communicate over a network. This model focuses on providing a visual design of how each communications layer is built on top of the other, starting with the physical cabling, all the way to the application that's trying to communicate with other devices on a network. A reference model is a conceptual framework for understanding relationships. The purpose of the OSI reference model is to guide technology vendors and developers so the digital communications products and software programs they create can interoperate and to promote a clear framework that describes the functions of a networking or telecommunications system that's in use. Most vendors involved in telecommunications try to describe their products and services in relation to the OSI model. This helps them differentiate among the various transport protocols, addressing schemes and communicati...
Post a Comment
Read more

WHAT ARE THE OTHER NETWORK DEVICES?

Image
  Overview Network devices  are  physical  devices that enable communication and interaction between  hardware  on a  computer  network. Each networking device operates in a distinct computer network segment and performs distinct functions. A network may require hundreds or thousands of different network devices to maintain and build out various  LAN  and  WAN . Network devices like the  hub ,  bridge ,  repeater ,  modem ,  router ,  gateway , etc., are the basic building blocks of an extensive network. What are Networking Devices? Network devices  are  physical  devices that enable communication and interaction between  hardware  on a  computer  network. Network devices are building blocks that permit communication between  services  and the  endpoints  that consume those services. In other words, they're connectors that allow devices on a network...
Post a Comment
Read more