The NIU (network interface unit) or NID (network interface device) at the ISP's demarc serves what purpose?

What will be an ideal response?


ANSWER: The NIU, or NID (network interface device), at the demarc connects the ISP's local loop to the customer's network. A more intelligent version of an NIU is a smart jack, or INID (Intelligent NID), which can provide diagnostic information about the interface. For example, a smart jack might include loopback capabilities. Just like the loopback adapter you use to test a port or cable on your computer, the smart jack can loop the ISP's signal back to the CO (central office) for testing. The ISP is responsible for all wiring leading up to the NIU and for the NIU itself. The customer is responsible for everything past the NIU, unless the equipment is owned by the ISP, such as with a line driver, CSU/DSU, or set-top box.

Computer Science & Information Technology

You might also like to view...

What is a hard disk?

What will be an ideal response?

Computer Science & Information Technology

What are some of the new features of the Windows 10 Start menu?

What will be an ideal response?

Computer Science & Information Technology

Which of the following shows energy as a function of frequency at the time the signal is being transmitted?

A. waterfall view B. waveform view C. realtime view D. traditional view

Computer Science & Information Technology

Consider the following class definition.public class Cylinder{    private double baseRadius;    private double height;    public Cylinder ()    {        baseRadius = 0;        height = 0;    }    public Cylinder (double l, double h)    {        baseRadius = l;        height = h;    }    public void set(double r, double h)    {        baseRadius = r;        height = h;    }    public String toString()    {        return (baseRadius + " " + height);    }    public double SurfaceArea()    {        return 2 * 3.14 * baseRadius * height;    }    public double volume()    {        return 3.14 * baseRadius * baseRadius * height;    }}Suppose that you have the following

declaration. Cylinder cyl = new Cylinder(1.5, 10);Which of the following sets of statements are valid in Java?(i)    cyl.surfaceArea();   cyl.volume();   cyl.print();(ii)       print(cyl.surfaceArea);   print(cyl.volume());   A. Only (i)      B. Only (ii) C. Both (i) and (ii)      D. None of these

Computer Science & Information Technology