Which of the following WAN technologies would a technician find dense wavelength division multiplexing (DWDM)?

A. T1
B. SONET
C. ADSL
D. ISDN


Answer: B. SONET

Computer Science & Information Technology

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When a layer is ____ as shown in the accompanying figure, you can see through it to the layers below.


a. transparent
b. nontransparent
c. opaque
d. resampled

Computer Science & Information Technology

Give an example of a built-in function

What will be an ideal response?

Computer Science & Information Technology

In the PMT function, the ________ argument indicates the percentage that is paid for the use of the borrowed money

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

Computer Science & Information Technology

One type of CAPTCHA is ________.

A. antivirus software B. a password method C. the wavy hard-to-read letter and number sequence that you type to prove that you are human to a website D. a rootkit virus

Computer Science & Information Technology