A way data moves from one terminal to another and how the computer terminal on a network gains and controls the transfer of data packets over the network through the cables forming the communication link called Media Access Control Method. A collision can take place and data may be corrupted if two or more computers […]
The datalink layer (Layer 2) of the OSI model handles the moving of data in and out across a physical link in a network. It performs the node to node delivery of data. It takes a frame from the network layer and forms frames and gives it to the physical layer. The datalink layer also […]
Wireless media carry data in the form of electromagnetic signals using radio or microwave frequencies. It provides the best mobility options, and the number of wireless-enabled devices continues to increase. As network bandwidth options increase, wireless is quickly gaining in popularity in enterprise networks. The first wireless transmitter went on air on the 20th century […]
choose the perfect solution for your cabling infrastructure is not an easy task. But once you be aware of the different properties of copper and fiber your solution may seem clearer. There are many advantages of fiber vs copper cable as explain below Fiber vs Copper Data Bandwidth Bandwidth is the main character of communication […]
Fiber optic connectors terminate both ends of an optical fiber. A variety of fiber optic connectors are available. The differences between the types of connectors are the size as well as the methods of coupling. There are four types of fiber optic connector in use. The list of all types of fiber optic connectors is […]
Unshielded twisted pair (UTP) cables are; widely used in the computer network as well as in the telecommunications industry as Ethernet cables and telephone wires. Unshielded twisted-pair (UTP) cabling consists of four pairs of colour-coded copper wires twisted together and then enclosed in a flexible plastic sheath. The twist of the copper cable around each […]
Data Delivery from the source device to a destination device is the basic responsibility of the network layer and data link layer. Protocols at both layers contain a source and destination address, but their addresses have different purposes. Network Layer Addresses Network Layer addresses are responsible for delivery the IP packet from the original source […]
The TCP/IP protocol Suite includes many protocols, as shown in Figure below. Each layer has own working protocol. Application layer protocols included the Domain Name System(DNS), host configuration protocol such as Dynamic Host Configuration Protocol (DHCP) and Bootstrap Protocol (BOOTP), Email protocols (POP, SMTP, and IMAP), file transfer protocol as well as HyperText Transfer Protocol. […]
The transmission control protocol (TCP) is a network communication protocol designed to send data packets over the Internet. It is a transport layer protocol in the OSI model. It creates a connection between remote computers by transporting and ensuring the delivery of messages over supporting networks and the Internet. When the application layer required sending […]
Network devices are physical devices that are required for communication and interaction between hardware on a computer network. The network devices work as a group and have a single purpose which securely transfers data as fast as possible. To meet this goal there are several network devices like repeater, bridge, hub, switch, router etc. Hub […]