A technician is tasked with connecting a router to a DWDM. The technician connects the router to the multiplexer and confirms that there is a good signal level. However, the interface on the router will not come up. Which of the following is the MOST likely cause?

A. The wrong wavelength was demuxed from the multiplexer.
B. The SFP in the multiplexer is malfunctioning.
C. There is a dirty connector on the fiber optic cable.
D. The fiber optic cable is bent in the management tray.

Answer: A. The wrong wavelength was demuxed from the multiplexer.

Computer Science & Information Technology

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Here is a small program. Which of the statements about this code is correct?

``` #include const double NUM = 2.9345358; double num = 3; double numTimes(int x); int main( ) { using namespace std; int value; cout << “Enter a value, I’ll multiply it by “ << NUM << endl; cin >> value; cout << “You entered “ << value << “ NUM times this is “ << numTimes(value) << endl; return 0; } double numTimes(int x) { double d; d = NUM * x; return d; ``` a) The variable x is a parameter in function numTimes b) The variable value is an argument in a call to numTimes. c) The line double numTimes(int x); is a function definition. d) The line return d; in the function numTimes is necessary. e) The lines of code are a function declaration:

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Computer Science & Information Technology

Programs that detect and respond effectively to unexpected user input are formally referred to as ____________________ programs.

Fill in the blank(s) with the appropriate word(s).

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Computer Science & Information Technology

Why is it important for designers to think in systems while working on a design project?

What will be an ideal response?

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Computer Science & Information Technology

Some home users connect computers to the Internet via slower-speed dial-up access because of its lower cost or because broadband access is not available where they live.

Answer the following statement true (T) or false (F)

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Computer Science & Information Technology