What device converts 8-bit-wide parallel data from a computer into 1-bit-wide serial data to send to a modem where it is converted to an analog signal before being sent over phone lines?

A. CSU/DSU
B. UART
C. DSL modem
D. multiplexer


Answer: B

Computer Science & Information Technology

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

1. A Boolean action contains no logic for the action. 2. One disadvantage of SFC programming is that it is linear and concurrent processing cannot be done. 3. Once an SFC ends the last step it does not automatically restart at the first step. 4. A transition can be a Boolean or can be a JSR to call another routine. 5. In an SFC program an application is broken into multiple sheets. 6. Transitions are physical conditions that must happen or change before going to the next step.

Computer Science & Information Technology

Which of the following can be an argument to a method?

a. Constants. b. Variables. c. Expressions. d. All of the above.

Computer Science & Information Technology

___________provides the basic attributes and behaviors of a window—a title bar at the top of the window, and buttons to minimize, maximize and close the window.

a. JLabel. b. JFrame. c. JSwing. d. JWindowControl.

Computer Science & Information Technology

Case Based Critical ThinkingMark's team is working on complex artwork for a 120-page corporate annual. Mark tells his team to be certain that all the artwork that they create is created with layers. His Photoshop gurus are experts at using layers in Photoshop, but Mark is curious to see how they will translate those abilities to working with layers in Illustrator. One of Mark's senior designers is struggling with working with a clipping set. He has an object that he wants to use as a mask, and he knows which artwork he wants to mask, but he can't seem to make it happen. Mark tells him that the problem could be which of the following?

A. the clipping mask and the objects to be masked are on the same layer B. he's trying to use a non sublayer as a clipping mask C. the object to be used as the mask is higher in the stacking order than the objects to be masked D. he is using a sublayer as a clipping set

Computer Science & Information Technology