Found 825 Articles for Network

The network layer creates a logical association between the sender and the user by giving a logical way. This layer switches and routes the message packet as important to obtain them to their destination.It is responsible for sending and distributing the message packets. The network layer creates routing decisions and advances the packets for devices that are farther away than an individual connection.The network layer can also divide the huge packets into little chunks, if the packet is higher than the most extensive data link layer. The network reassembles the fragments into packets at the receiving end. Routers and Gateways ... Read More

The primary service of the data link layer is to support error-free transmission. The physical layer sends the information from the sender's hub to the receiver's hub as raw bits.The data link layer must identify and correct any bug in the communicated data.It takes packets from the network layer and divides the packets into frames which are shared by the sender through the physical layer, as demonstrated in the diagram below −A Cyclic Redundancy Check (CRC) which is inserted into the data frame can find the loss frames. Hence, the data link layer in the receiving device can request for ... Read More

Physical layer is the shortest layer in the model. This layer is feasible for initiating, preserving, and deactivating a physical circuit between two end frameworks.The Physical Layer is vital for transmitting bits from one device to another device. It can change the series of bits into electric signals, light signals, or electromagnetic signals, relying on either the two hubs on a link circuit, fiber-optic circuit, or microwave/radio circuit.Passive hubs, simple active hubs, terminators, couplers, cables, connectors, repeaters, multiplexers, transmitters and receivers are the devices associated with the physical layer.The physical layer situation for the transmission channel and the data link ... Read More

OSI represents Open System Interconnection. The OSI reference model is a seven-layered architecture and is created in a hugely structured method. Each layer in the model has specific sets of procedures, functions, and protocols. One layer can communicate with an adjacent layer by using its interface.OSI model was advanced by the International Organization for Standardization (ISO) in Geneva, Switzerland, and by the Consultative Committee for International Telephone and Telegraph (CCITT).The figure given below displays the seven-layered Architecture of OSI Models, along with the protocols and interfaces.Functions of the OSI LayersThere are various functions of OSI Layers which are as follows:Physical LayerThis ... Read More

Both Hubs and Bridges are network connecting devices and both of them broadcast data to every node on a network. Hubs operate at the Physical Layer and they do not perform packet filtering or addressing function; they send the data packets to all the connected devices. Bridges connect various devices in a network.A bridge operates at the data link layer to connect multiple networks. It can read the outmost section of a data packet to tell where the message is going. A bridge can be programmed to reject packets from a particular network, so it can be used to reduce ... Read More

A VPN connects a private network to another public network, which allows users to transmit and receive data as if their computers were connected to the private network physically.MPLS is a routing technique that is used to improve the speed and control of the network traffic. It speeds up traffic flows by avoiding complex lookups in the routing table at each node as in conventional routing algorithms.Read through this article to find out more about MPLS and VPN and how they are different from each other.What is VPN?VPN stands for virtual private networks. It is a network type that is ... Read More

Both URL and Domain Name are two very common terms related to the Internet or web address. Sometimes, these are used interchangeably, but they are entirely different from each other. URL (Uniform Resource Locator) is the complete address of a web resource such as a webpage, whereas the Domain Name is the part of a URL that represents an IP address in a human friendly form. Read this article to find out more about URL and Domain Name and how they are different from each other. What is URL? A URL is a complete Internet address of a web ... Read More

Both these terms "cybersecurity" and "network security" are related to security measures that organizations employ to protect their data, systems, and network infrastructure from online threats. However, cybersecurity is used in a much broader sense, while network security is a subset of cybersecurity. Read through this article to find out more about cybersecurity and network security and how they are different from each other.What is Cybersecurity?Cyber security refers to the use of technology, methods, and policies to reduce the danger of cyber-attacks while also protecting the systems, networks, programs, devices, and data from unwanted access.The field of cybersecurity is becoming ... Read More

In computers, an address is used to identify a location in the computer memory. In operating systems, there are two types of addresses, namely, logical address and physical address. A logical address is the virtual address that is generated by the CPU. A user can view the logical address of a computer program. On the other hand, a physical address is one that represents a location in the computer memory. A user cannot view the physical address of a program. Read this article to find out more about logical and physical address and how they are different from each other. ... Read More

In this post, we will understand the difference between RPC and RMI −RPC (Remote Procedure Call)It is a library.It is an OS dependent platform.It supports procedural programming.It is less efficient in comparison to RMI.It creates more overhead.The parameters passed to RPC is normal data.It is the older version of RMI.It is easy to program in RPC.It doesn’t provide any security.The cost of development is high.Versioning is a complicated process in RPC.Multiple codes will be needed to build a simple application in RPC.RMI (Remote Method Invocation)It is a platform based on Java.It supports object-oriented programming.It is more efficient in comparison to ... Read More