Qlik QSDA2024 Exam - 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, 08:50 PM

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Rodolfo

3 months ago

I disagree, I feel like option A might be overlooked.

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Launa

3 months ago

Definitely going with D, it checks for file existence first!

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Yuki

3 months ago

Wait, are we sure the script will handle multiple files correctly?

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Cathrine

4 months ago

I think option C could work too, but not as efficiently.

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Yoko

4 months ago

Sounds like option D is the best choice!

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Carin

4 months ago

I think option A could work since it mentions Peek, but I’m not sure how that fits with the requirement to upload only if there are changes.

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Nobuko

4 months ago

I practiced a similar question where we had to check file sizes, but this one seems to focus more on existence. I’m leaning towards option C, but I’m not confident.

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Georgeanna

4 months ago

I'm not entirely sure, but I feel like the FOR EACH loop is important for iterating through the sources. Maybe option D again?

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Junita

5 months ago

I remember we discussed using a method to check if a file exists, so I think option D might be the right choice.

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Tiera

5 months ago

This seems straightforward enough. I'm confident I can get this done using the tools mentioned in the question - FilePath, FOR EACH, IF, and Drop. As long as I'm careful to follow the steps in the right order, I think I can nail this one.

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Amie

5 months ago

Okay, I think I've got a plan. I'll use the FilePath function to check the location, then an IF statement to see if the file exists. If it does, I'll upload it. And I'll repeat that for each source. Sounds like the right approach to me.

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Kenneth

5 months ago

Hmm, I'm a bit confused about the batch procedure at the end to remove the uploaded files. Do we need to handle that in the same script, or is that a separate process? I want to make sure I understand the full requirements before diving in.

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Glory

5 months 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 year 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 year 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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King

1 year ago

Haha, imagine if the data architect forgot to remove the uploaded files. The hard drive would be full in no time! Good thing there's a batch procedure to clean up.

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