VDV Cabling Infrastructure

Question 1

What does ANSI/TIA-568 standard cover in structured cabling?

Accepted Answer

Wiring and cabling systems

Answer

The ANSI/TIA-568 standard is a widely recognized telecommunications cabling standard that specifies generic telecommunications cabling for commercial buildings. It covers requirements for twisted-pair and fiber optic cabling, including cable types, installation practices, and performance specifications, ensuring interoperability and proper infrastructure.

Question 2

Which cable type is used for long-distance high-speed data transmission?

Accepted Answer

Fiber optic

Answer

Fiber optic cables transmit data using light signals, which allows for significantly higher bandwidth and much longer transmission distances compared to traditional copper cables. This makes them the ideal choice for backbone connections and high-speed, long-haul data transmission in modern networks.

Question 3

What is the minimum bend radius for a Cat6 cable?

Accepted Answer

Four times the cable diameter

Answer

The minimum bend radius for network cables, such as Cat6, is crucial to prevent damage to the internal conductors and maintain signal integrity. Bending the cable too sharply can cause kinks, alter impedance, and degrade performance, with the general guideline for twisted-pair cables being four times the cable's outer diameter to ensure optimal functionality.

Question 4

Which of the following tools is used for cable termination?

Accepted Answer

Punch-down tool

Answer

A punch-down tool is specifically designed to terminate network cables (like Cat5e/6) by pushing individual wires into insulation-displacement connectors (IDCs) on patch panels, keystone jacks, or 66/110 blocks. This action simultaneously cuts off excess wire and creates a secure electrical connection, making it essential for proper cable termination.

Question 5

What does a cable tray do?

Accepted Answer

Route and protect cables

Answer

Cable trays are structural systems that support and organize network, power, and communication cables throughout a building. They provide a safe and efficient method for routing cables, protecting them from physical damage, and facilitating future additions or changes to the cabling infrastructure.

(VDV) Voice Data Video Technician Certified Practice Test

(VDV) Voice Data Video Technician Certified Practice Test

VDV Cabling Infrastructure