Network Cabling Concepts and Issues

The video tutorial covers the concept of signal attenuation in network cabling and fiber optics, explaining how signal loss occurs over long distances. It introduces decibels as a measurement unit and discusses the logarithmic scale. The tutorial also addresses troubleshooting signal loss, the impact of electromagnetic interference, and the importance of proper cable installation. It highlights issues with connectors and pin-outs, interface configuration, and common circuit problems. Finally, it provides insights into fiber optic connections, emphasizing the need for matching transceivers and clean connectors.

What is the term used to describe the gradual loss of signal strength over a long distance in network cabling?

• Refraction

• Attenuation

• Diffraction

• Reflection

How is signal strength commonly measured in network cabling?

• Decibels

• Watts

• Lumens

• Volts

What is a common source of electromagnetic interference (EMI) in network cabling?

• Plastic pipes

• Wooden beams

• Fluorescent lights

• Glass windows

Which tool is useful for checking the exact pin-outs in network cables?

• Hammer

• Screwdriver

• Multimeter

• Cable tester

What might happen if the pin-outs in a network cable are incorrect?

• Faster data transfer

• Connectivity issues

• Improved signal quality

• Increased bandwidth

What is a short circuit in network cabling?

• A cable with no signal loss

• A perfectly functioning cable

• Wires touching each other

• A complete disconnection of wires

What is the effect of a duplex mismatch in network connections?

• Improved signal quality

• No effect

• Significant slowdowns

• Increased speed

What is the purpose of Auto-MDIX in network devices?

• To reduce electromagnetic interference

• To automatically correct wiring errors

• To enhance data encryption

• To increase signal strength

Why is it important to match the transceiver with the type of fiber being used?

• To ensure compatibility and prevent signal loss

• To reduce the cost of the fiber

• To increase the length of the fiber

• To change the color of the fiber

What should be done to fiber connectors before connecting them to a device?

• Paint them

• Clean them

• Cut them

• Bend them