ni clad practice test

Question 1

How do you document a VI so that the description appears in the Show Context Help popup window?

• A. Use the VI Properties Documentation window
• B. Type in the Show Context Help window
• C. Create a free label on the front panel
• D. Edit the LabVIEW help files

Question 2

Can a wire be used to pass data between loops that are intended to run in parallel?

• A. Yes
• B. No

Question 3

Which of the following describes a Tab Control?

• A. A control that outputs ASCII values equal to the selected tab label
• B. A type of enumerated control
• C. A control that outputs a cluster of the controls / indicators on the tabs
• D. A controls that outputs the tab order of the controls on the front panel

Question 4

What is an advantage of using a Strictly Typed VI ref num?

• A. The data types of the target VI are known at compile time
• B. The data types passed to the VI can change programmatically
• C. You can flatten the data to a string to improve code performance
• D. Causes dynamically loaded VIs to be loaded at the start of execution

Question 5

A coercion dot indicates that:

• A. The data types are consistent
• B. A polymorphic operation will be performed on the data
• C. A data buffer is created to handle data conversion
• D. Data values are being coerced because they are out of range

Question 6

Which of the following statements is true about the following block diagram?

• A. The loop will execute once and the iteration terminal, , will output a value of one
• B. The loop w ill execute once and the iteration terminal, , will output a value of zero
• C. The loop will execute infinitely and the program will have to be aborted
• D. The loop will not execute and the iteration terminal, , will return a null value

Question 7

Which of the following can not be used to transfer data?

• A. Semaphores
• B. Queues
• C. Notifiers
• D. Local variables

Question 8

Which of the following terminals controls how many times a For loop executes?
A.

B.

C.

D.

Question 9

You have a control on the front panel of a VI and you need to modify one of its properties at run
time. Which of the following is the best approach you would take?

• A. Create an implicit property node and select the property to modify
• B. Create a control reference, pass the reference to a property node and select the property to modify
• C. Create a linked shared variable and select the property to modify the property
• D. Create a local variable and select the property to modify

Question 10

Formula nodes accept which of the following operations?

• A. Basic programming language instructions Input and Print
• B. Embedding of SubVIs within the Formula Node
• C. Pre and post increment (++) and decrement (--) as in the C language
• D. The use of nested Formula Node structures

Question 11

Which of the following is the best method to update an indicator on the front panel?

• A. Use a Value property node
• B. Wire directly to the indicator terminal
• C. Use a local variable
• D. Use a functional global variable

Question 12

Which of the following functions assembles Cluster elements by their owned labels?

• A. Unbundle by Name
• B. Unbundle
• C. Bundle by Name
• D. Bundle

Question 13

What is the output of the Build Array function in the following block diagram when Concatenate
Inputs is selected?

• A. 1-D Array of {1, -4, 3, 7, -2, 6}
• B. b.1-D Array of {1, 7, -4, -2, 3, 6}
• C. c.2-D Array of {{1, -4, 3, 0}, {7, -2, 6}}
• D. d.2-D Array of {{1, -4, 3}, {7, -2, 6}}

Question 14

What is the output of the Initialize Array function after the following code has executed?

• A. a.1-D Array of {3, 3, 3, 3}
• B. b.1-D Array of {4, 4, 4}
• C. c.1-D Array of {3, 4}
• D. d.1-D Array of {4, 3}

Question 15

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