Unit 2 : Networking
Lesson [08]
Transmission Media & Networking Software
1
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Transmission Media & Networking Software: A Comprehensive Overview, Essays (university) of Network Theory
Computer networking enables devices and endpoints to be connected to each other on a local area network (LAN) or to a larger network, such as the internet or a private wide area network (WAN). ... Networking facilitates everything from telephone calls to text messaging to streaming video to the internet of things (IoT).
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Unit 2 : Networking
Lesson [08]
Transmission Media & Networking Software
Module Learning Outcomes ▪ LO1. Examine networking principles and their protocols. ▪ LO2. Explain networking devices and operations. ▪ LO3. Design efficient networked systems. ▪ LO4. Implement and diagnose networked systems.
Basic Types of Physical Media Twisted Pair – 10 Base T ▪ Unshielded Twisted Pair (UTP) cable ▪ Shielded Twisted Pair (STP) cable Coaxial cable ▪ Thin Coaxial Cable – 10 Base 2 ▪ Thick Coaxial Cable – 10 Base 5 Optical Fiber
Twisted Pair Cable ▪ Inexpensive ▪ Susceptible to electrical interference (noise) ▪ Used in telephone systems ▪ Physical characteristics
▪ Requires two conductors
▪ Twisted around each other to reduce electrical interference
▪ Plastic sheath
▪ Two Types
▪ Unshielded Twisted Pair (UTP)
▪ Shielded Twisted Pair (STP)
Coaxial Cable ▪ At one time, coaxial cable was the most widely used network cabling ▪ Coaxial was relatively inexpensive, and it was light, flexible, and easy to work with ▪ It was so popular that it became a safe, easily supported installation
BNC connector
Fiber Optic Cable ▪ Fiber optic cabling consists of a center glass core surrounded by several layers of protective materials ▪ Transmit light rather than electronic signals which eliminating the problem of electrical interference. ▪ Ability to transmit signals over much longer distance. ▪ Data transmission at vastly greater speeds
Networking Software
▪ Network software encompasses a broad range of software used for
design, implementation, and operation and monitoring of computer
networks.
▪ Enables users to have access to network resources in a seamless
manner
▪ Allows administrations to add or remove users from the network
▪ Helps administrators and security system to protect the network from
data breaches, unauthorized access and attacks on a network
▪ Enables network virtualizations
Client Software ▪ Software that resides in a user's desktop or laptop computer or mobile device that accesses a service made available by a server ▪ E.g Outlook-Email Client Software
Summary ▪ Transmission Media
▪ Physical
▪ Wireless
▪ Twisted Pair ▪ Coaxial ▪ Fiber Optic ▪ Networking Software