VDV Network Infrastructure 2

Question 1

What is the maximum segment length for a 1000BASE-T Ethernet connection over Cat5e cable?

Accepted Answer

100 meters

Answer

1000BASE-T (Gigabit Ethernet) over Cat5e is limited to 100 meters per segment, the same as other 802.3 Ethernet variants.

Question 2

Which layer of the OSI model does a managed network switch primarily operate at?

Accepted Answer

Layer 2 (Data Link)

Answer

Managed switches operate primarily at Layer 2, using MAC addresses to forward frames between ports within a network segment.

Question 3

In a structured cabling system, what is the function of the Intermediate Distribution Frame (IDF)?

Accepted Answer

Serves as a satellite distribution point connecting to the MDF

Answer

An IDF serves as a satellite wiring closet that connects floor or zone cabling back to the Main Distribution Frame (MDF).

Question 4

What type of connector is used to terminate single-mode fiber optic cable in most enterprise installations?

Accepted Answer

LC or SC

Answer

LC and SC connectors are the most commonly used fiber optic connectors in enterprise environments for both single-mode and multimode fiber.

Question 5

A VDV technician needs to run cable through a fire-rated wall. Which cable type is required?

Accepted Answer

Plenum-rated (CMP)

Answer

Plenum-rated (CMP) cable must be used in air-handling spaces and is also acceptable for fire-rated wall penetrations due to its low smoke and flame characteristics.

(VDV) Voice Data Video Technician Certified Practice Test

(VDV) Voice Data Video Technician Certified Practice Test

VDV Network Infrastructure 2