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Questions and Answers
What are the three primary types of network media used to interconnect devices?
How is data transmitted through fiber-optic cable?
What is the purpose of twisting the pairs in twisted-pair cable?
Why are the magnetic fields created by two wires in an electrical circuit twisted together?
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What type of waves are modulated for wireless transmission of data?
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What type of waves are modulated for wireless transmission of data?
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What is the primary purpose of twisting the wires in twisted-pair cable?
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Which type of cable is commonly used for telephone communications and modern Ethernet networks?
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What kind of impulses are used to encode data in metal wires within cables?
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What are the glass or plastic fibers within cables primarily used for?
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Study Notes
Network Media Types
- Three primary types of network media: twisted-pair cable, coaxial cable, and fiber-optic cable.
Data Transmission in Fiber-Optic Cable
- Data is transmitted through fiber-optic cable using light impulses that travel along glass or plastic fibers.
Twisted-Pair Cable
- Twisting pairs in twisted-pair cable reduces electromagnetic interference and crosstalk between pairs.
Twisting Wires in Electrical Circuits
- Twisting wires creates magnetic fields that cancel each other out, enhancing signal integrity and reducing interference.
Wireless Transmission
- Radio waves are modulated for the wireless transmission of data, allowing for communication over distances without physical connections.
Encoding Data in Metal Wires
- Electrical impulses are used to encode data in metal wires within cables, facilitating data transfer in wired networks.
Glass or Plastic Fibers
- Glass or plastic fibers in fiber-optic cables are primarily used to transmit light signals, enabling high-speed data communication.
Commonly Used Cable Type
- Twisted-pair cable is commonly used for telephone communications and modern Ethernet networks due to its cost-effectiveness and sufficient performance.
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Description
Test your knowledge of network media with this quiz! Explore the different types of network media, including twisted-pair cable, coaxial cable, fiber-optic cable, and wireless, and understand how data is transmitted across these mediums.
