Gulf Income

Transmission medium is the physical path between the transmitter and receiver. Factors to Select Transmission Media Ø   Data Rate and Bandwidth Ø   Distance and Attenuation Ø   Interference Characteristics Ø   Number of receivers Ø   Cost - Remember cabling is a long term investment! Guided Media Sub-types Ø   Unshielded Twisted Pair (UTP) Cable Ø   Shielded Twisted Pair (STP) Cable Ø   Coaxial Cable Ø   Fiber Optic Cable Un-guided Media Sub-types Ø   Terrestrial microwave transmission Ø   Satellite transmission Ø   Broadcast radio Ø   Infrared Twisted Pair Wires Ø   Consists of two insulated copper wires arranged in a regular spiral pattern to minimize the electromagnetic interference between adjacent pairs Ø   Often used at customer facilities and also over distances to carry voice as well as data communications Ø   Low frequency transmission medium Twisted...

HOW A CAMPUS NETWORK IS DESIGNED  WHAT IS CAMPUS NETWORK? The people new to the networking world they must know what is a campus network..According to my point of view a campus network is an autonomous network under the  management of a single entity. THE NETWORK INFRASTRUCTURE: To design a network, your first step is information gathering, planning   the network based on the gathered information. The next step is network designing and modeling .There are numerous technologies which you can use to build your network but challenge is to choose the technology that suits best with your goal. THINKS WE SHOULD CONSIDER WHILE DESIGNING: ü   Avoid daisy chain network, build star network. ü   Make the design modular ü   Type of media between buildings. ü   Security   measures. ü   LOS   for wireless   transmission. ü   Build separate edge and core networks. ü   Always route into...

TCP vs UDP Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) are the major protocols operating at Transport Layer. Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) operate very differently and you can choose Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) depending on your requirement. TCP (transfer control protocol) UDP (user data gram protocol) Transmission Control   Protocol (TCP) is a connection oriented protocol, which means   the devices   should   open a connection   before   transmitting   data and should close the connection gracefully   after   transmitting   the data. User Datagram Protocol (UDP) is Datagram oriented protocol with no overhead for opening, maintaining, and closing a connection. Transmission Control   Protocol (TCP) assure reliable delivery of data to the destination. ...

TCP/IP The Internet protocol suite is the set of communications protocols used for the Internet and similar networks, and generally the most popular protocol stack for wide area networks. It is commonly known as TCP/IP, because of its most important protocols: Transmission Control Protocol (TCP) and Internet Protocol (IP), which were the first networking protocols defined in this standard. It is occasionally known as the DoD model due to the foundational influence of the ARPANET in the 1970s (operated by DARPA, an agency of the United States Department of Defense). TCP/IP provides end-to-end connectivity specifying how data should be formatted, addressed, transmitted, routed and received at the destination. It has four abstraction layers which are used to sort all Internet protocols according to the scope of networking involved.[1][2] From lowest to highest, the layers are: The link layer contains communication technologies for a local network. The internet layer (IP) connect...

OSI model (open system interconnection) The Open Systems Interconnection (OSI) model (ISO/IEC 7498-1) is a product of the Open Systems Interconnection effort at the International Organization for Standardization. It is a prescription of characterizing and standardizing the functions of a communications system in terms of abstraction layers. Similar communication functions are grouped into logical layers. A layer serves the layer above it and is served by the layer below it. For example, a layer that provides error-free communications across a network provides the path needed by applications above it, while it calls the next lower layer to send and receive packets that make up the contents of that path. Two instances at one layer are connected by a horizontal connection on that layer. OSI model  Data unit Layer Function Host layers Data 7.  Application Network process to application 6....