Telecommunications Fiber Optics 3

Question 1

What does DWDM stand for?

Accepted Answer

Dense Wavelength Division Multiplexing

Answer

Digital Waveform Data Modulation

Answer

Distributed Wireless Data Management

Answer

Dynamic WAN Delivery Mode

Question 2

What is a fiber optic splice closure used for?

Accepted Answer

Protect and house fiber splices in outdoor or underground environments

Answer

Amplify signals at outdoor nodes

Answer

Convert single-mode to multimode fiber

Answer

Connect fiber to copper DMARC points

Question 3

Which multimode fiber type offers the highest bandwidth-distance product?

Accepted Answer

OM5

Answer

OM1

Answer

OM2

Answer

OM3

Question 4

What is the typical core diameter of single-mode fiber?

Accepted Answer

8-10 µm

Answer

50 µm

Answer

62.5 µm

Answer

125 µm

Question 5

What causes back-reflection in fiber optic connectors?

Accepted Answer

Light reflected back toward the source at connector interfaces

Answer

Excessive bend radius

Answer

High ambient temperature

Answer

Moisture in the fiber jacket

Question 6

What is the purpose of an optical power meter in fiber testing?

Accepted Answer

Measure the optical signal power at a specific point in the link

Answer

Locate the position of a break in a fiber

Answer

Amplify signals to testable levels

Answer

Map all connections in a fiber plant