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Twisted-Pair Cable Types

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Questions and Answers

What is the maximum cable length for STP?

c. 100 meters

Which connectors does UTP use?

d. RJ-45

What is an advantage that coaxial cable has over STP or UTP?

a. It is capable of achieving 10 Mbps to 100 Mbps.

A ______ fiber-optic cable transmits multiple streams of LED-generated light.

a. multimode Signup and view all the answers

What is twisted-pair cable primarily used for?

Twisted-pair cable is used for telephone communications and most modern Ethernet networks. Signup and view all the answers

How does twisted-pair cable protect against crosstalk?

The pairs of wires in twisted-pair cable are twisted to provide protection against crosstalk. Signup and view all the answers

What happens to the magnetic fields of two wires in an electrical circuit when they are placed close together?

When two wires in an electrical circuit are placed close together, their magnetic fields are the exact opposite of each other. Signup and view all the answers

Why are twisted-pair cables preferred for modern Ethernet networks?

Twisted-pair cables are preferred for modern Ethernet networks due to their ability to transmit data effectively and cancel out noise. Signup and view all the answers

Explain the significance of canceling out outside magnetic fields in twisted-pair cables.

Canceling out outside magnetic fields in twisted-pair cables helps maintain signal integrity and reduce interference. Signup and view all the answers

What is the purpose of the small, circular magnetic field created around a wire when electrical current flows through it?

The small, circular magnetic field around a wire helps in transmitting data through the twisted-pair cable. Signup and view all the answers

What are the two basic types of twisted-pair cable?

Unshielded twisted pair (UTP) and shielded twisted pair (STP) Signup and view all the answers

How does twisting the wires enhance the cancellation effect in twisted-pair cables?

Twisting the wires enhances the cancellation effect by reducing electromagnetic interference (EMI). Signup and view all the answers

What is the purpose of using cancellation with twisted wires in cable design?

The purpose of using cancellation with twisted wires is to provide self-shielding for wire pairs within the network media. Signup and view all the answers

What is the composition of UTP cable?

UTP cable is composed of pairs of wires, with each wire covered by an insulating material. Signup and view all the answers

What connector is commonly used to connect computers onto a local-area network (LAN) using UTP cable?

Registered Jack 45 (RJ-45) connector Signup and view all the answers

Why must UTP cable follow precise specifications regarding the number of twists or braids per meter?

UTP cable must follow precise specifications to ensure proper cancellation of electromagnetic interference. Signup and view all the answers