Podcast
Questions and Answers
Which characteristic primarily differentiates plenum cables from other types of cables?
Which characteristic primarily differentiates plenum cables from other types of cables?
- The color of the outer jacket.
- The material used for insulation and jacketing. (correct)
- The number of conductors they contain.
- The type of data they transmit.
What is the primary purpose of a plenum space in building construction?
What is the primary purpose of a plenum space in building construction?
- To serve as a dedicated area for electrical wiring.
- To provide structural support for the building.
- To act as a soundproofing barrier between floors.
- To facilitate air circulation for heating, ventilation, and air-conditioning. (correct)
In the context of air circulation within a commercial building, how does a non-circulating airspace differ from a plenum airspace?
In the context of air circulation within a commercial building, how does a non-circulating airspace differ from a plenum airspace?
- Non-circulating airspaces are actively involved in forced-air supply, while plenum airspaces are not.
- Non-circulating airspaces are used for heating, while plenum airspaces are used for cooling.
- Plenum airspaces are actively involved in forced-air supply, while non-circulating airspaces are not. (correct)
- There is no practical difference between the two; the terms are interchangeable.
Which material is commonly used as a reinforcing component in fiber optic cables?
Which material is commonly used as a reinforcing component in fiber optic cables?
What is a key difference between single-mode and multimode fiber optic cables?
What is a key difference between single-mode and multimode fiber optic cables?
For what type of application is multimode fiber optic cable most commonly used?
For what type of application is multimode fiber optic cable most commonly used?
What type of light-generating device is typically used with multimode fiber optic cables?
What type of light-generating device is typically used with multimode fiber optic cables?
What is the approximate maximum cable length typically recommended for multimode fiber optic cables?
What is the approximate maximum cable length typically recommended for multimode fiber optic cables?
In what scenario would shielded twisted pair (STP) cable be most advantageous over unshielded twisted pair (UTP)?
In what scenario would shielded twisted pair (STP) cable be most advantageous over unshielded twisted pair (UTP)?
Which characteristic primarily differentiates coaxial cable from twisted-pair cable in network applications?
Which characteristic primarily differentiates coaxial cable from twisted-pair cable in network applications?
A network technician needs to implement a wired network in an office building known for high levels of electromagnetic interference from nearby industrial equipment. Which cabling type is MOST suitable?
A network technician needs to implement a wired network in an office building known for high levels of electromagnetic interference from nearby industrial equipment. Which cabling type is MOST suitable?
What is a key advantage of using twisted-pair cabling in modern Ethernet networks?
What is a key advantage of using twisted-pair cabling in modern Ethernet networks?
Which statement accurately compares the construction of shielded twisted pair (STP) and unshielded twisted pair (UTP) cables?
Which statement accurately compares the construction of shielded twisted pair (STP) and unshielded twisted pair (UTP) cables?
A technician is tasked with setting up a broadband internet connection using a cable modem. Which type of network media is MOST likely to be used for this connection?
A technician is tasked with setting up a broadband internet connection using a cable modem. Which type of network media is MOST likely to be used for this connection?
What is the primary purpose of twisting the wires in twisted-pair cabling?
What is the primary purpose of twisting the wires in twisted-pair cabling?
Which of the following best describes the typical application of coaxial cable?
Which of the following best describes the typical application of coaxial cable?
Flashcards
Plenum Cable
Plenum Cable
Cable designed for use in plenum spaces for air circulation in buildings.
Plenum Airspace
Plenum Airspace
Space in a building dedicated to air circulation, typically between ceilings.
Non-Circulating Air Space
Non-Circulating Air Space
Space where air is stagnant and not actively circulated.
Fiber Optic Cable
Fiber Optic Cable
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Single-Mode Fiber Cable
Single-Mode Fiber Cable
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Multimode Fiber Cable
Multimode Fiber Cable
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Outer Jacket of Cables
Outer Jacket of Cables
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Kevlar in Fiber Optics
Kevlar in Fiber Optics
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Network Media
Network Media
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Twisted-Pair Cable
Twisted-Pair Cable
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Unshielded Twisted Pair (UTP)
Unshielded Twisted Pair (UTP)
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Shielded Twisted Pair
Shielded Twisted Pair
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Coaxial Cable
Coaxial Cable
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Wireless Media
Wireless Media
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Compare and Contrast Media Types
Compare and Contrast Media Types
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Study Notes
Network Media
- Network media is the physical path for electrical signals to travel between network components. It includes twisted-pair cable, coaxial cable, fiber-optic cable, and wireless media.
Learning Objectives
- Students should be able to describe the primary types and uses of twisted-pair cables.
- Students should be able to describe the primary types and uses of coaxial cables.
- Students should be able to describe the primary types and uses of fiber-optic cables.
- Students should be able to describe the primary types and uses of wireless media.
- Students should be able to compare and contrast the primary types and uses of different network media.
Twisted-Pair Cable
- Twisted-pair cable is a type of cabling used for telephone communications and modern Ethernet networks.
Unshielded Twisted-Pair (UTP)
- UTP cable is composed of pairs of wires.
- Each wire in UTP cable is covered by an insulating material.
- It is used in a variety of networks.
Shielded Twisted-Pair (STP)
- STP cable combines shielding techniques (shielding, cancellation, and wire twisting).
- Each pair of wires is wrapped in metallic foil, and then the four pairs of wires are wrapped in an overall metallic braid or foil.
Coaxial Cable
- Coaxial cable is used for video, communications, and audio transmission.
- It is also used in networks allowing broadband cable internet connection.
- It consists of a copper conductor, plastic insulation, braided copper shielding, and an outer jacket.
Plenum Cable
- Plenum cable is used in plenum spaces of buildings.
- Plenum spaces are for air circulation in heating, ventilation, and air-conditioning (HVAC) systems.
- It is typically located between the structural ceiling and a drop ceiling.
Fiber-Optic Cable
- Fiber-optic cable contains optical fibers (usually glass) coated in plastic.
- Data is sent by pulses of light.
- Components include an outer jacket, kevlar reinforcing materials, glass fiber and cladding, and a plastic shield.
Types of Fiber-Optic Cable
- Single-mode fiber cable: Allows only one mode (or wavelength) of light to propagate through the fiber, capable of higher bandwidth and greater distances. It is often used for campus backbones.
- Multimode fiber cable: Allows multiple modes of light to propagate, often used for workgroup and intrabuilding applications (such as risers). It uses LEDs as a light-generating device, and cable length is typically limited to 2 km (6561.7 feet).
Wireless Communication
- Wireless communication uses radio frequencies (RF) or infrared (IR) waves to transmit data between devices on a LAN.
- A key component is the wireless hub or access point for signal distribution.
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Description
Explore network media including twisted-pair, coaxial, and fiber-optic cables. Learn about unshielded twisted-pair (UTP) cable and its applications in telephone communications and Ethernet networks. Compare the different types and uses of network media.
