Fiber Optic Cable Construction: A Comprehensive Guide for Network Cabling and Wiring

Question 1

For long-distance network applications, which fiber optic cable construction is most suitable?

Accepted Answer

Single-mode step-index fiber with a loose tube cable design

Answer

Multi-mode graded-index fiber with a tight buffer cable design

Answer

Ribbon fiber with a loose tube cable design

Question 2

Which core construction enables the simultaneous transmission of multiple signals through a single fiber?

Accepted Answer

Multi-mode graded-index

Answer

Single-mode

Answer

Multi-mode stepped-index

Answer

Plastic optical fiber

Question 3

In a fiber optic cable, the cladding layer functions primarily to:

Accepted Answer

Guide light waves within the core

Answer

Provide electrical insulation

Answer

Protect the core from external damage

Answer

Enhance signal quality

Question 4

In loose tube cables, buffer tubes serve the purpose of:

Accepted Answer

Protecting individual fibers from stress and damage

Answer

Preventing moisture penetration

Answer

Providing electrical continuity

Answer

Enhancing signal strength

Question 5

Which fiber optic connector is known for its diminutive size and low insertion loss?

Accepted Answer

LC connector

Answer

SC connector

Answer

ST connector

Answer

MPO connector

Question 6

To measure the power level of a fiber optic signal, the appropriate tool is a:

Accepted Answer

Light source and power meter

Answer

Cable tester

Answer

Optical time-domain reflectometer (OTDR)

Answer

Multimeter

Question 7

In multi-mode fiber optic cables, how does intermodal dispersion affect signal transmission?

Accepted Answer

It causes a delay difference between light modes, distorting signals and limiting bandwidth.

Answer

It weakens the signal as it travels through the cable.

Answer

It raises the core's refractive index, aiding light transmission.

Answer

It increases cladding light absorption, resulting in higher loss.

Question 8

What is the primary function of the cladding in a fiber optic cable?

Accepted Answer

To guide light within the core through total internal reflection

Answer

To protect the core from external damage

Answer

To amplify the optical signal

Answer

To convert electrical signals to optical signals

Question 9

Which type of fiber optic cable is most suitable for high-speed data transmission over long distances?

Accepted Answer

OS2

Answer

OM1

Answer

OM2

Answer

OS1

Question 10

In a fiber optic cable, which component is primarily responsible for carrying the optical signal?

Accepted Answer

Core

Answer

Cladding

Answer

Buffer

Answer

Jacket

Question 11

Which type of fiber optic connector is most commonly used in data center environments for high-density applications?

Accepted Answer

LC

Answer

SC

Answer

ST

Answer

FC

Question 12

What is the primary purpose of a fiber optic patch panel in network infrastructure?

Accepted Answer

To provide a centralized connection point for fiber optic cables

Answer

To convert fiber optic signals to electrical signals

Answer

To amplify fiber optic signals

Answer

To store and organize fiber optic cables

Question 13

The cladding in a fiber optic cable primarily serves to:

Accepted Answer

Protect the core and reflect light back into it

Answer

Absorb light and minimize signal loss

Answer

Transmit data signals

Answer

Increase the cable's flexibility

Question 14

Which fiber optic cable type boasts the highest data transmission capacity:

Accepted Answer

Single-mode fiber

Answer

Multi-mode fiber

Answer

Graded-index multi-mode fiber

Answer

Step-index multi-mode fiber

Question 15

Which tool is not used for splicing fiber optic cables?

Accepted Answer

Crimping tool

Answer

Fusion splicer

Answer

Mechanical splicer

Answer

Optical Time Domain Reflectometer (OTDR)

Question 16

Which type of fiber optic cable is characterized by a single light mode, low attenuation, and high data transmission rates?

Accepted Answer

Single-mode fiber

Answer

Multi-mode fiber

Answer

Cladding fiber

Answer

Core fiber

Question 17

What is the protective layer that surrounds the core of a fiber optic cable, providing mechanical stability and preventing light leakage?

Accepted Answer

Cladding

Answer

Core

Answer

Buffer

Answer

Sheath

Question 18

What is the primary purpose of the buffer coating in fiber optic cables, ensuring their reliability and longevity?

Accepted Answer

To protect the fiber from physical damage and environmental factors

Answer

To guide light waves through the core

Answer

To provide electrical insulation

Answer

To enhance signal quality

Question 19

What tool is specifically designed to measure the power level of an optical signal, providing information about signal strength and quality?

Accepted Answer

Power meter

Answer

Optical time-domain reflectometer

Answer

Multimeter

Answer

Spectrum analyzer

Question 20

Which type of fiber optic cable is best suited for applications requiring long-distance data transmission?

Accepted Answer

Single-mode fiber

Answer

Multi-mode fiber

Answer

Graded-index fiber

Answer

Plastic optical fiber

Question 21

Which of the following is NOT a commonly used fiber optic cable connector type?

Accepted Answer

BNC

Answer

SC

Answer

LC

Question 22

What is the primary purpose of a fiber optic patch panel?

Accepted Answer

To provide a central connection point for managing and organizing fiber optic cables

Answer

To convert optical signals to electrical signals

Answer

To store excess fiber optic cables

Answer

To amplify optical signals

Question 23

Which tool is specifically designed to measure the power level of an optical signal?

Accepted Answer

Optical power meter

Answer

Multimeter

Answer

Cable tester

Answer

Tone generator

Question 24

What is the industry-standard terminology for the process of connecting or terminating a fiber optic cable?

Accepted Answer

Splicing or connecting

Answer

Soldering

Answer

Crimping

Answer

Stripping