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CLAD_80.questions

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Exam A

QUESTION 1You 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 theexecution of the SubVI?

A. Use the SubVI in a Sequence structureB. Modify the SubVI to have dummy inputs that can be used from the calling VIC. Modify the SubVI to have Error clustersthat can be used from the calling VID. Modify the SubVI to have a global variable and use it from the calling VI

Correct Answer: CSection: (none)Explanation

Explanation/Reference:

QUESTION 2What is the value in Shift Register Answer after the following code has executed?

A. 16B. 24C. 32D. 10

Correct Answer: C


Section: (none)Explanation


QUESTION 3Which 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 ChartB. Scope ChartC. Sweep ChartD. Step Chart

Correct Answer: BSection: (none)Explanation


QUESTION 4Which 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 runningsimultaneouslyB. Only the global variable can pass array data, local variables cannotC. Global variables follow the dataflow model, and therefore cannot cause raceconditionsD. Global variables do not require owned labels to operate

Correct Answer: ASection: (none)Explanation

Explanation/Reference:answer is valid and updated.

QUESTION 5Which timing function (VI) is the best choice for timing control logic in applications that run for extended periods of time?



A. Option AB. Option BC. Option CD. Option D



QUESTION 6


Under which of the following conditions does a For loop stop executing?

A. When afalsevalue is present at the conditional terminal and the conditionalterminal isC:\Documents and Settings\RraAsShHiIdD\Desktop\untitled.JPGB. When the value of the iteration terminal,C:\Documents and Settings\RraAsShHiIdD\Desktop\untitled.JPG, is one less than the value of thecount terminal,C:

\Documents and Settings\RraAsShHiIdD\Desktop\untitled.JPGC. When the value of the iteration terminal,C:\Documents and Settings\RraAsShHiIdD\Desktop\untitled.JPG, is one more than the value of thecount terminal,C:

\Documents and Settings\RraAsShHiIdD\Desktop\untitled.JPGD. None of the above



QUESTION 7You are inputting data that represents a circle. The circle data includes an x position, a y position, and a radius. All three pieces of data are double-precision. In thefuture, you might need to store the color of the circle, represented as an integer. How should you represent the circle on your front panel window?

A. Three separate controls for the two positions and the radius.B. A cluster containing all of the data.C. A type definition containing a cluster.D. An array with three elements.



QUESTION 8Which of the following will cause an event to be captured by the LabVIEW Event Structure?

A. Changing a value on a Front Panel control via a mouse clickB. Update of a Front Panel control using a property nodeC. Programmatic update of a Front Panel control via a control referenceD. Using VI Server to update aFront Panel control




QUESTION 9Which of the following does not conform to data flow programming paradigm?

A. Shift RegistersB. TunnelsC. SubVIsD. Local Variables

Correct Answer: DSection: (none)Explanation


QUESTION 10You must store data that other engineers must analyze with Microsoft Excel. Which file storage format should you use?

A. Tab-delimited ASCIIB. Custom binary formatC. TDMD. Datalog



QUESTION 11


What is the result of the following Array addition?

A. a.1-D Array of {80, 20, 40, 10,-60}B. b.1-D Array of {120, 30,-60}C. c.1-D Array of {120, 30}D. d.2-D Array of {{120, 90, 20}, {60, 30,-40}}



QUESTION 12Which of the following statements is false?

A. A SubVI connector pane defines where to wire inputs and outputsB. The color of a SubVI connector pane terminal matches the data type it isconnected toC. You must have an icon/connector to use a SubVID. A SubVI icon can beedited from the functions palette




QUESTION 13The most efficient method for creating an array is:

A. Using a Forloop with Auto-indexingB. Placing a build array function in a WhileloopC. Initializing an array and then replacing elements in a WhileloopD. Using a Whileloopwith Auto-Indexing



QUESTION 14The following block diagram represents which common type of VI architecture?


A. Multiple Case Structure VIB. General VIC. State Machine VID. Parallel Loop VI


Explanation/Reference:Explanation:

QUESTION 15Which of the following statements is true about the iteration terminal ?


A. It returnsthe number of times the loop has executedB. It returns the number of times the loop has executed, plus oneC. It returns the number of times the loop has executed, minus oneD. It returns a constant number


Explanation/Reference:answer is up-to-date.

QUESTION 16For implementing state diagrams that allow future application scalability, the best choice for a base structure is?

A. Sequence structureB. Case structureC. Formula nodeD. Object-Oriented structure



QUESTION 17Which of the following Block Diagrams could produce this result in Waveform Graph?





QUESTION 18If an input name on the Show Context Help window is in bold for a SubVI, which of the following conditions are true? (Choose all apply)

A. Input values must be scalar.B. An input is recommended, but not required.C. An input is required.D. A broken run arrow will result unless the input is wired.

Correct Answer: CDSection: (none)


Explanation


QUESTION 19Which of the following apply to Property Nodes? (Choose all apply)

A. Property Nodes allow attributes of front panel objects to be programmaticallymanipulated.B. Property Nodes can be used to update the values contained in a front panelobject.C. More than one Property Node can be used for a single front panel object.D. Property Nodes contained in aSubVI will always cause the front panel to beloaded in memory.

Correct Answer: ABCDSection: (none)Explanation


QUESTION 20Which VI memory components are ALWAYS S resident for a SubVI? (Choose all apply)

A. Data SpaceB. Front PanelC. Block DiagramD. Code

Correct Answer: ADSection: (none)Explanation


QUESTION 21Which of the following statements regarding Array constants are NOT true?

A. When you create an Array constant on the block diagram, it is not visible on the Front Panel.


B. You cannot resize an Array constant to include more than one element.C. You can copy or drag an existing Array on the Front Panel to the Block Diagram to create a constant of the same data type.D. All array operations can be performed on an Array constant



QUESTION 22In the figure below, what will Result equal when this calculation is executed?

A. 55B. 70C. 65D. Indeterminate



QUESTION 23


The function of a Cluster is to:

A. Allow grouping of mixed data types into logical structures.B. Present data on the Front Panel using charts or graphs.C. Provide a means of differentiating between data types on the Block Diagram.D. Separate data objects by data type on the Front Panel.



QUESTION 24Can Probes be attached to objects on the Front Panel?

A. YesB. No


Explanation/Reference:corrected and modified.

QUESTION 25What is the result in Array after the following code has executed?


A. A 1-D array of {1, 4, 3, 2, 1, 0}B. A 1-D array of {1, 8, 0, 1, 2, 3, 4, 6, 2}C. A 1-D array of {1, 4, 3, 2, 1, 0, 8, 6, 2}D. A 1-D array of {1, 8, 0, 1, 2, 2, 9}



QUESTION 26What is the result in new string after the following code has executed?


A. Hello to you!B. Hello Wto you!C. Hello to you!!D. Helloto you!



QUESTION 27Which of the following display options are available for strings on the Front Panel?

A. `\' CodesB. PasswordC. HexD. All of the above




Explanation:

QUESTION 28What is the result in subarray after the following code has executed?

A. A 1-D Array of {8, 5, 7}B. A 1-D Array of {10, 8, 5}C. A 1-D Array of {10, 8, 5, 7}D. A 1-D Array of {7, 10, 8, 5}



QUESTION 29In the figure below, the output of Array Size is

A. a 1-D Array of {2, 3}


B. a 1-D Array of {3,2}C. 2D. None of the above



QUESTION 30What is the result of the following Array subtraction?

A. A 1-D Array of {-25, 25, 50}B. A 1-D Array of {-25, 25}C. A 2-D Array of {{-25, -50, -50}, {50, 25, 25}}D. A 1-D Array of {75, -50, 25}



QUESTION 31


Which of the following allows you to plot any set of points, evenly distributed or not?

A. Waveform GraphB. Waveform ChartC. XY GraphD. Both A. and C.



QUESTION 32Which of the following produces this XY Graph?





QUESTION 33Which of the graphs below matches the output in the Waveform Graph indicator after the following code has executed?




Correct Answer: DSection: (none)


Explanation


QUESTION 34The Wait function can be added to While Loops:

A. To free up available memory.B. To allocate memory used by the CPU.C. To allow the processor time to complete other tasks.D. To reserve which processor the code is running on.


Explanation/Reference:updated.

QUESTION 35Which of the following methods is NOT a method to create a 1-D Array?

A. Place an Array Shell on the Front Panel and drag a Control into the shell.B. Use a While Loop with auto-indexing disabled.C. Use a For Loop with auto-indexing enabled.D. Use the Initialize Array function.



QUESTION 36Which of the following statements is true regarding the execution of the following code?


A. The loop will iterate 51 times.B. The loop will iterate 50 times.C. The loop will iterate 49 times.D. A For Loop that has a 50 wired to the count terminal will perform the same operation.



QUESTION 37Which of the following accurately describes the output that results from execution of the following loop?


A. The last three values from the DAQ Assistant will be displayed.B. A running average of all measurements will be displayed.C. An average of the last four measurements will be displayed.D. None of the above



QUESTION 38Which of the following statements is NOT valid?

A. You can make a Cluster of Clusters.B. You can make an Array of Arrays.C. You can make a Cluster of Arrays.D. You can make an Array of Clusters.




QUESTION 39Which of the following statements is true?

A. The default setting for a tunnel into or out of a For Loop has auto-indexing enabled if the data being passed is an array.B. The default setting for a tunnel into or out of a While Loop has auto-indexing disabled if the data being passed is an array.C. Both A. and B. are trued.D. None of the above



QUESTION 40Which of the following statements is true regarding the use of Coercion Dots?

A. Coercion Dots improve program performance.B. Coercion Dots represent a conversion from one data type to another.C. Coercion Dots increases memory usageD. Both A. and B.E. Both B. and C.

Correct Answer: ESection: (none)Explanation



QUESTION 41Which of the following graphs matches the result in Comparison Values after the following code has executed?




QUESTION 42Which combination of words correctly completes the following statement?

Unlike__________, which display only the most recent array of values written to them, ___________ update periodically and maintain a history of the past data.

A. graphs; chartsB. charts; plotsC. plots; graphs


D. charts; graphs



QUESTION 43Which of the following will allow you to have multiple plots on a Waveform Graph?

A. Bundle two 1D arrays of X and Y data together for each plot. Then build an array of these clusters and wire it to the Waveform Graph indicator.B. Build an n-dimensional array of data with each plot in a separate row (or column) in the array, then wire the array to the Waveform Graph indicator.C. Bundle the elements of each waveform into a cluster and build an array of these clusters, then wire the array to the Waveform Graph indicator.D. Both B. and C.



QUESTION 44Which of the following is NOT a traditional debugging feature used to help find errors in a VI:

A. Highlight Execution.B. Single SteppingC. BreakpointsD. Stop Values




QUESTION 45What VI is typically used to terminate an Error Cluster wire and to display any error message?

A. Merge ErrorsB. One Button Dialog/Two Button DialogC. Generate Front Panel ActivityD. Simple Error Handler



QUESTION 46The following figure is an example of which common type of VI architecture?

A. Multiple Case Structure VI


B. General VIC. State Machine VID. Parallel Loop VI



QUESTION 47Clicking on the _________ button allows you to bypass a node in the Block Diagram without single- stepping through the node.

A. Step IntoB. Step OverC. Step OutD. Step Through



QUESTION 48Variants are used for all of the following but:

A. Passing values between programs written with different compilersB. Allowing software to achieve a greater degree of generalityC. Representing any data typeD. Converting from fixed point to floating point data




Explanation:

QUESTION 49You can use all of the following data types as inputs to the case selector terminal except:

A. DoublesB. Enumerated type valuesC. StringsD. Integers



QUESTION 50The Error list shows all of the following but:

A. Items with errorsB. Errors and warningsC. Details about the warningsD. Error Codes



QUESTION 51The following breakpoint does which of the following:


A. Causes the VI to abortB. Causes the VI to pauseC. Causes the VI to single step over the additionD. Causes the VI to single step over the indicator



QUESTION 52Which of the following is NOT a component of an Error Cluster?

A. Status.B. Code.C. Source.D. VI name



QUESTION 53What is the value in XOR Result after the following code has executed?


A. 0B. 1C. TrueD. False



QUESTION 54Which of the following statements regarding the index of Arrays are NOT true?

A. The index is used to access a particular element of an Array.B. The index ranges from 1 to n.C. A 2-D Array has both a column index and a row index.D. The index ranges from 0 to n-1.



QUESTION 55


Clusters provide a user with which of the following benefits?

A. Clusters allow a logical grouping of related data elements.B. Clusters increase the number of Connector Pane terminals of SubVI's.C. Clusters help to reduce wire clutter on the Block Diagram.D. Both A. and C.



QUESTION 56Which chart update mode plots new data from left to right, then clears the chart and plots the newer data?

A. Strip ChartB. Scope ChartC. Sweep ChartD. Step Chart



QUESTION 57Which of the following methods will create an XY Graph with two plots?

A. Create a single cluster from two arrays of X values and two arrays of Y values in an X, Y,B. X, Y pattern.C. Bundle the X and Y array pairs together into two clusters and then create an array of these two clusters.D. Bundle the X and Y array pairs together into two clusters and create a cluster of these two clusters.E. Create a single array of each of the X arrays and Y arrays in an X, Y, X, Y pattern.




QUESTION 58Which of the following terminals controls how many times a For Loop will execute?






QUESTION 59What is the value in after substring upon completion of the following code?

A. world!B. rld!C. h hello world!D. <blank>

Correct Answer: BSection: (none)


Explanation


QUESTION 60Which of the following cannot be used to transfer data?

A. Local variablesB. QueuesC. SemaphoresD. Notifiers



QUESTION 61How do you document a VI so that the description appears in the Show Context Help popup window?

A. Usethe VIProperties Documentation windowB. Typein the Show Context Help windowC. Createa free label on thefront panelD. Editthe LabVIEW help files



QUESTION 62Can a wire be used to pass data between loops that are intended to run in parallel?

A. Yes


B. No



QUESTION 63Which of the following describes a Tab Control?

A. A control that outputs ASCII values equal to the selected tab labelB. A type of enumerated controlC. A control that outputs a cluster of the controls / indicators on the tabsD. A controls that outputs the tab order of the controls on the front panel



QUESTION 64What is an advantage of using a Strictly Typed VI ref num?

A. The data types of the target VI are known at compile timeB. The data types passed to the VI can change programmaticallyC. You can flatten the data to a string to improve code performanceD. Causes dynamically loaded VIs to be loaded at the start of execution




QUESTION 65A coercion dot indicates that:

A. The data types are consistentB. Apolymorphic operation will be performed on the dataC. A data buffer is created to handle data conversionD. Data values are being coerced because they are out of range


Explanation/Reference:answer is modified.

QUESTION 66Which of the following statements is true about the following block diagram?

A. The loop will execute once and the iteration terminal,C:\Documents and Settings\RraAsShHiIdD\Desktop\untitled.JPG, will output a valueof oneB. The loop will execute once and the iteration terminal,C:\Documents and Settings\RraAsShHiIdD\Desktop\untitled.JPG, will output a valueof zeroC. The loop will execute infinitely and the program will have to be abortedD. The loop will not execute and the iteration terminal,C:\Documents and Settings\RraAsShHiIdD\Desktop\untitled.JPG, will return a nullvalue




Explanation:

QUESTION 67Which of the following can not be used to transfer data?

A. SemaphoresB. QueuesC. NotifiersD. Local variables



QUESTION 68Which of the following terminals controls how many times a For loop executes?





QUESTION 69You 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 propertyto modifyB. Create a control reference,pass the reference to a property nodeand select theproperty to modifyC. Create a linked shared variable andselect the property to modify thepropertyD. Create alocal variableand select the property to modify



QUESTION 70Formula nodes accept which of the following operations?

A. Basic programming language instructionsInputandPrintB. Embedding of SubVIs within the Formula NodeC. Pre and post increment (++) and decrement (--) as in the C languageD. The use ofnestedFormula Nodestructures



QUESTION 71Which of the following is the best method to update an indicator on the front panel?

A. Use a Value property nodeB. Wire directlyto the indicator terminal


C. Use a local variableD. Use a functional global variable



QUESTION 72Which of the following functions assembles Cluster elements by their owned labels?

A. Unbundle by NameB. UnbundleC. Bundle by NameD. Bundle



QUESTION 73What 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 74What 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 75What is one disadvantage of using the State Machine VI architecture?

A. A State Machine canonly traverse states in orderB. If two state changes occur at the same time, only the first state change will behandled and the second will be lostC. The diagram becomes significantly larger when changing from ageneralarchitectureto a State MachineD. State Machines cannot acquire data or use DAQ functions



QUESTION 76What 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 tothe Stop terminalB. Connect the error wire directly to the Stop terminalC. Create an Event structure to handle the error eventD. Use the Error Handler VI to automatically handle the error



QUESTION 77What mechanical action of a Boolean would you use to mimic a button on a Windows dialog?

A. Switch Until ReleasedB. Switch When ReleasedC. Latch UntilReleasedD. Latch When Released




QUESTION 78Which 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 datapreviously stored.

A. Graphs;ChartsB. Charts;PlotsC. Plots; GraphsD. C harts; Graphs


Explanation/Reference:corrected.

QUESTION 79In what instance would you use the Probe tool rather than Highlight Execution?

A. To see the flow of dataB. To see the value of a wire in real-timeC. To look into a SubVI, as the process is runningD. To slowdown the VIandshowdatavalues in wires



QUESTION 80You 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 customcontrol 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. YesB. No

Correct Answer: BSection: (none)


Explanation

