Network Infrastructure Flashcards

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

Answer: 100 meters

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

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

Answer: Layer 2 (Data Link)

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

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

Answer: Serves as a satellite distribution point connecting to the MDF

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

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

Answer: LC or SC

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

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

Answer: Plenum-rated (CMP)

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.

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

Answer: Provides a central termination point to organize and connect horizontal cabling

A patch panel provides a fixed termination point for horizontal cable runs, allowing flexible cross-connections via patch cords to active equipment.

Which TIA/EIA standard defines the color-coded wiring scheme for 8-pin RJ-45 connectors?

Answer: TIA-568-C.2 (T568A/T568B)

TIA-568-C.2 defines the T568A and T568B wiring schemes used to terminate twisted-pair cables in RJ-45 connectors and patch panels.