Qlik Exam QSDA2024 Topic 2 Question 8 Discussion

Actual exam question for Qlik's QSDA2024 exam

Question #: 8
Topic #: 2

[All QSDA2024 Questions]

A data architect needs to upload data from ten different sources, but only if there are any changes after the last reload. When data is updated, a new file is placed into a folder mapped to E:\486396169. The data connection points to this folder.

The data architect plans a script which will:

1. Verify that the file exists

2. If the file exists, upload it Otherwise, skip to the next piece of code.

The script will repeat this subroutine for each source. When the script ends, all uploaded files will be removed with a batch procedure. Which option should the data architect use to meet these requirements?

AFilePath, FOR EACH, Peek, Drop

BFileSize, IF, THEN, END IF

CFilePath, IF, THEN, Drop

DFileExists, FOR EACH, IF

Show Suggested Answer

Suggested Answer: D

In this scenario, the data architect needs to verify the existence of files before attempting to load them and then proceed accordingly. The correct approach involves using the FileExists() function to check for the presence of each file. If the file exists, the script should execute the file loading routine. The FOR EACH loop will handle multiple files, and the IF statement will control the conditional loading.

FileExists(): This function checks whether a specific file exists at the specified path. If the file exists, it returns TRUE, allowing the script to proceed with loading the file.

FOR EACH: This loop iterates over a list of items (in this case, file paths) and executes the enclosed code for each item.

IF: This statement checks the condition returned by FileExists(). If TRUE, it executes the code block for loading the file; otherwise, it skips to the next iteration.

This combination ensures that the script loads data only if the files are present, optimizing the data loading process and preventing unnecessary errors.

by Jacklyn at Sep 18, 2024, 09:50 PM

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Glory

2 days ago

This looks like a pretty straightforward data integration task. I'd start by checking if the file exists using the FileExists function, then upload it if it does. Looping through each source with a FOR EACH statement seems like the way to go.

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Cyndy

1 years ago

I'm not sure, but I think option A) FilePath, FOR EACH, Peek, Drop could also work since it involves verifying the file path and then uploading it if it exists.

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Sue

1 years ago

I'm torn between A) and D), but I think D) is the winner. Looping through each source and checking if the file exists is a straightforward solution.

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The 'FileExists, FOR EACH, IF' option seems like the way to go. Checking if the file exists and then looping through each source is a solid approach.

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Juan

1 years ago

Yes, it's important to verify the file exists before uploading it. The IF statement can help with that.

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Alaine

1 years ago

I agree, using FileExists to check if the file exists and then looping through each source with FOR EACH seems like a good plan.

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