NI NI Certifications CLAD Questions & Answers

• Question 91:

  Which of the following illustrates an advantage of a global variable over a local variable?

  A. A global variable can pass data between two independent VIs running simultaneously

  B. Only the global variable can pass array data, local variables cannot

  C. Global variables follow the dataflow model, and therefore cannot cause race conditions

  D. Global variables do not require owned labels to operate

  Correct Answer: A

• Question 92:

  Which Chart update mode should be used to draw new data from left to right, then clear t he chart and draw new data again from left to right?

  A. Strip Chart

  B. Scope Chart

  C. Sweep Chart

  D. Step Chart

  Correct Answer: B

• Question 93:

  What is the value in Shift Register Answer after the following code has executed?

  

  A. 16

  B. 24

  C. 32

  D. 10

  Correct Answer: C

• Question 94:

  You develop a SubVI that only outputs a value and need to use this SubVI in a (calling) VI. Which of the following is the best way to enforce dataflow to control the execution of the SubVI?

  A. Use the SubVI in a Sequence structure

  B. Modify the SubVI to have dummy inputs that can be used from the calling VI

  C. Modify the SubVI to have Error clusters that can be used from the calling VI

  D. Modify the SubVI to have a global variable and use it from the calling VI

  Correct Answer: C

• Question 95:

  You customize a control, select Control from the Type Def. Status pull-down menu, and save the control as a .ctl file. You then use an instance of the custom control on your front panel window. If you open the .ctl file and modify the control, does the control on the front panel window change?

  A. Yes

  B. No

  Correct Answer: B

• Question 96:

  In what instance would you use the Probe tool rather than Highlight Execution?

  A. To see the flow of data

  B. To see the value of a wire in real-time

  C. To look into a SubVI, as the process is running

  D. To slowdown the VI and show data values in wires

  Correct Answer: B

• Question 97:

  Which combination of words correctly completes the following statement?

  Unlike __________, which display an entire waveform that overwrites the data already stored, ___________ update periodically and maintain a history of the data previously stored.

  A. Graphs; Charts

  B. Charts; Plots

  C. Plots; Graphs

  D. C harts; Graphs

  Correct Answer: A

• Question 98:

  What mechanical action of a Boolean would you use to mimic a button on a Windows dialog?

  A. Switch Until Released

  B. Switch When Released

  C. Latch Until Released

  D. Latch When Released

  Correct Answer: D

• Question 99:

  What is the best method to stop a While loop on an error condition?

  A. Compare the Status boolean of an error cluster with a constant and wire it to the Stop terminal

  B. Connect the error wire directly to the Stop terminal

  C. Create an Event structure to handle the error event

  D. Use the Error Handler VI to automatically handle the error

  Correct Answer: B

• Question 100:

  What is one disadvantage of using the State Machine VI architecture?

  A. A State Machine can only traverse states in order

  B. If two state changes occur at the same time, only the first state change will be handled and the second will be lost

  C. The diagram becomes significantly larger when changing from a general architecture to a State Machine

  D. State Machines cannot acquire data or use DAQ functions

  Correct Answer: B