A protocol is the special set of rules that end points in a telecommunication connection use when they communicate. Protocols specify interactions between the communicating entities.
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Definition - What does Three-Way-Handshake mean? A three-way-handshake is a method used in a TCP/IP network to create a connection between a local host/client and server. It is a three-step method that requires both the client and server to exchange SYN and ACK (acknowledgment) packets before actual data communication begins. A three-way-handshake is also known as a TCP handshake. Techopedia explains Three-Way-Handshake A three-way-handshake is primarily used to create a TCP socket connection. It works when: Upon completion of this process, the connection is created and the host and server can communicate.
Local Area Network Technologies Overview Local Area Network ( LAN ) is a data communications network connecting terminals, computers and printers within a building or other geographically limited areas. These devices could be connected through wired cables or wireless links. Ethernet, Token Ring and Wireless LAN using IEEE 802.11 are examples of standard LAN technologies. Ethernet is by far the most commonly used LAN technology. Token Ring technology is still used by some companies. FDDI is sometimes used as a backbone LAN interconnecting Ethernet or Token Ring LANs. WLAN using IEEE 802.11 technologies is rapidly becoming the new leading LAN technology for its mobility and easy to use features. Local Area Network could be interconnected using Wide Area Network (WAN) or Metropolitan Area Network (MAN) technologies. The common WAN technologies include TCP/IP, ATM, Frame Relay etc. The common MAN technologies include SMDS and 10 Gigabit Ethernet. LANs are traditionall...
Authentication and authorization work together to prevent a multitude of application security attacks. While the basic concepts behind these two methods may be simple, the technology is not. There is a vast array of authentication and authorization techniques available. The articles, tips, definitions and expert advice in this learning guide will help you sort them out.
HYBRID TOPOLOGY : " A combination of two or more different topologies makes for a hybrid topology. When different topologies are connected to one another, they do not display characteristics of any one specific topology. " WORKING OF Hybrid Topology The Hybrid topology scheme combines multiple topologies into one large topology.The hybrid network is common in large wide area networks. Because each topology has its own strengths and weaknesses, several different types can be combined for maximum effectiveness. ADVANTAGES of Hybrid Topology Any topology can be combined with another without making any changes to existing topology. The speed of the topology is compatible because it combines the strengths of each of the topologies, eliminating weaknesses. It is also more efficient. DISADVANTAGES of Hybrid Topology Installation and configuration of topology is difficult. Because there are differe...
MESH TOPOLOGY : "The topology of a network whose components are all connected directly to every other component." WORKING OF Ring Topology For sending messages, check the cable connected into two devices. A message is send directly from sender to receiver because each one has individual and separate connection. ADVANTAGES of Mesh Topology Eliminates traffic problems in links sharing. If one link becomes unusable, it does not incapacitate the entire system. Thus, act as robust. It has privacy and security. Point-to-point link make fault identification and fault isolation easy. DISADVANTAGES of Mesh Topology Difficult to install and maintain. Expenisve.
RING TOPOLOGY : "Ring topology looks like the bus topology with connected ends. But In functionality it is different." WORKING OF Ring Topology Each computer is connected to the next computer in the form of ring. Each retransmit what it receives from the previous computer. The message flow in one direction. Ring topology connects computers on a single circle of cable. There is no terminated ends Signals travel around the loop in one direction and pass through each computer. Unlike bus topology, each computer acts like a repeater to boost the signal and send it to the next computer. It is called endless topology. In ring topology, data flows in ring and in clock-wise direction. Ring topology is based on “Token Ring Mechanism”. Token Passing A token is passed around the network. The computer that has token can transmit data. Token is passed from computer to computer until it reaches to its destination. The destination device returns an acknowled...