VDV Network Systems Integration 4

Question 1

A building has multiple telecommunications rooms on different floors. What type of cabling connects these rooms together?

Accepted Answer

Backbone cabling

Answer

Backbone cabling (also called vertical cabling) interconnects telecommunications rooms, equipment rooms, and entrance facilities between floors and buildings.

Question 2

What is the maximum distance specification for a multimode OM4 fiber running 10 Gigabit Ethernet?

Accepted Answer

400 meters

Answer

OM4 multimode fiber supports 10 Gigabit Ethernet (10GBASE-SR) at distances up to 400 meters, making it suitable for campus backbone applications.

Question 3

In network documentation, what does the acronym MDF stand for?

Accepted Answer

Main Distribution Frame

Answer

MDF stands for Main Distribution Frame, which is the primary telecommunications room housing the main cross-connect and typically where outside plant cabling enters the building.

Question 4

Which switching technology prevents network loops in Ethernet networks with redundant paths?

Accepted Answer

Spanning Tree Protocol (STP)

Answer

Spanning Tree Protocol (STP) and its variants (RSTP, MSTP) detect and block redundant paths to prevent broadcast storms and network loops.

Question 5

What type of signal loss occurs when light reflects back toward the source at a fiber optic connection or splice?

Accepted Answer

Optical return loss

Answer

Optical return loss (ORL) measures the light reflected back toward the transmitter at connectors, splices, or other discontinuities in a fiber optic link.

(VDV) Voice Data Video Technician Certified Practice Test

(VDV) Voice Data Video Technician Certified Practice Test

VDV Network Systems Integration 4