COMPUTER NETWORKS

  A computer network is a telecommunication channel through which we can share our data. It is also called data network. The best example of a computer network is Internet. Computer network does not mean …

Line Configuration The network is a connection made through connection links between two or more devices. Devices can be a computer, printer or any other device that is capable of sending and receiving data. There are …

What are the types of network topology? Types of network topology Network Topology is the schematic description of a network arrangement, connecting various nodes(sender and receiver) through lines of connection. BUS Topology Bus topology is …

What is Transmission Modes in Computer Networks? Transmission mode means transferring data between two devices. It is also called communication mode. These modes direct the direction of flow of information. There are three types of …

What is Bounded/Guided Transmission Media? Bounded/Guided Transmission Media  It is the transmission media in which signals are confined to a specific path using wire or cable. The types of Bounded/ Guided are discussed below. Twisted …

Unguided or wireless media sends the data through air (or water), which is available to anyone who has a device capable of receiving them. Types of unguided/ unbounded media are discussed below : Radio Transmission …

Types of Computer  Networks Local Area Network (LAN) It is also called LAN and designed for small physical areas such as an office, group of buildings or a factory. LANs are used widely as it …

These are the two services given by the layers to layers above them. These services are : Connection Oriented Service Connectionless Services Connection Oriented Services There is a sequence of operation to be followed by …

The most important reference models are : OSI reference model. TCP/IP reference model. Introduction to ISO-OSI Model: There are many users who use computer network and are located all over the world. To ensure national …

Communication Networks There are n numbers of users who use computer network and are located over the world. So to ensure, national and worldwide data communication, systems must be developed which are compatible to communicate …

Physical layer is the lowest layer of all. It is responsible for sending bits from one computer to another. This layer is not concerned with the meaning of the bits and deals with the physical …

Data link layer is most reliable node to node delivery of data. It forms frames from the packets that are received from network layer and gives it to physical layer. It also synchronizes the information …

The main aim of this Network layer is to deliver packets from source to destination across multiple links (networks). If two computers (system) are connected on the same link then there is no need for …

The main aim of transport layer is to be delivered the entire message from source to destination. Transport layer ensures whole message arrives intact and in order, ensuring both error control and flow control at …

Its main aim is to establish, maintain and synchronize the interaction between communicating systems. Session layer manages and synchronize the conversation between two different applications. Transfer of data from one destination to another session layer …