Examkin

Question

Difficulty: HardNetwork Hardware Devices

A field technician is deploying a new high-speed fiber-to-the-premises (FTTP) internet connection for a commercial client. The Internet Service Provider (ISP) has terminated a single-mode fiber optic cable inside the facility's main telecommunications room. However, the client's internal network router only features copper 1000BASE-T RJ-45 Ethernet WAN ports. Which hardware device must be installed at the demarcation point to convert the optical signals into electrical Ethernet signals for the edge router?

  1. Optical Network Terminal (ONT)Answer
  2. B
    Unmanaged Layer 2 Ethernet Switch
  3. C
    Patch Panel
  4. D
    Wireless Access Point

Answer

An Optical Network Terminal (ONT) is required at the demarcation point to convert incoming fiber optic signals from the ISP into copper RJ-45 Ethernet signals compatible with the router's WAN interface.
In fiber-to-the-premises (FTTP) telecommunication installations, an Optical Network Terminal (ONT) serves as the modem/demarcation device. It converts incoming light pulses from the ISP fiber cable into electrical signals delivered over a standard RJ-45 Ethernet connection to the customer's router.

Step-by-Step Solution

1
Analyze the physical media requirements at the network boundary.
Identified a physical layer media mismatch between incoming fiber optic ISP cabling (light signals) and internal router WAN interface (copper 1000BASE-T RJ-45 electrical signals).
Direct connection is impossible without active physical media conversion.
2
Evaluate candidate hardware devices based on functional role at the ISP demarcation point.
An Optical Network Terminal (ONT) acts as the active transceiver demarcation device for fiber broadband deliveries, terminating fiber optic cable and providing RJ-45 Ethernet handoffs.
The ONT specifically translates modulated light pulses into standard electrical binary signals required by Ethernet networking gear.

Key Concept

Fiber-to-the-Premises Demarcation and Optical Network Terminal (ONT) Operations
Estimated Time:1m 30s
Rate this question

Topics

Network Hardware Devices

More questions from this topic