Talend-Core-Developer Exam - Topic 6 Question 3 Discussion

Actual exam question for Talend's Talend-Core-Developer exam

Question #: 3
Topic #: 6

[All Talend-Core-Developer Questions]

You are building a complex Job and want to explore different options for optimizing execution times using parallelism.

How can you identify execution times to verify the effectiveness of your changes?

Choose 2 answers

AObserving the execution time in the Code view.

BHeading the time stamps from the execution console in the Run view.

CComparing time stamp in Trace Debug mode.

DObserving the execution times that annotate the flows in the Designer.

Show Suggested Answer

Suggested Answer: B, D

To identify execution times to verify the effectiveness of your changes, you can use one of these methods:

Reading the time stamps from the execution console in the Run view. This method allows you to see the start and end time of each subjob and component in your job, as well as the total execution time of the job. You can also see the number of rows processed by each component and the status of the job (success or failure).

Observing the execution times that annotate the flows in the Designer. This method allows you to see the execution time of each flow (main, lookup, reject, etc.) between components in your job. You can also see the number of rows processed by each flow and the throughput (rows per second) of each flow.

You cannot use these methods to identify execution times:

Observing the execution time in the Code view. This method does not show you the execution time of your job or its components, but only the generated code of your job in Java or Perl. The Code view is useful for debugging or customizing your code, but not for measuring performance.

Comparing time stamps in Trace Debug mode. This method does not show you the execution time of your job or its components, but only the values of each column for each row processed by your job. The Trace Debug mode is useful for tracing data quality or transformation issues, but not for measuring performance. Reference: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Run view - 7.3], [Designer - 7.3], [Code view - 7.3], [Trace Debug mode - 7.3]

by Valentin at Mar 20, 2025, 02:24 PM

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Fabiola

3 months ago

D seems a bit off, not sure about that one.

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Bobbye

3 months ago

C is a solid choice too, don't sleep on it!

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Shaunna

3 months ago

Wait, can you really trust the timestamps in the console?

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Nada

3 months ago

Definitely agree with A! It's super useful.

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Verdell

3 months ago

I think A and B are the best options.

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Adelle

4 months ago

I feel like observing execution times in the Designer could be useful, but I’m torn between that and the console option.

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Margot

4 months ago

Comparing time stamps in Trace Debug mode seems familiar, but I can't recall if it's the most effective method for this question.

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Matt

4 months ago

I remember practicing with the execution console, so I feel like heading the time stamps from there could be a good choice.

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Bernardo

4 months ago

I think observing execution times in the Code view might be one option, but I'm not entirely sure about the second one.

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Eugene

4 months ago

I feel pretty confident about this one. I've used the execution time annotations in the Designer before, and I know the Run view and Trace Debug mode can provide some really helpful insights. I'll make sure to try out a few different approaches to verify the effectiveness of my changes.

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Adelina

5 months ago

I'm a bit confused by the wording of the question. Does "observing the execution time in the Code view" mean just looking at the code and estimating, or is there some specific tool or feature I should be using?

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Coletta

5 months ago

Okay, I think I've got a good strategy here. I'll start by looking at the execution times in the Designer to get a high-level view, then dig into the details in the Run view and Trace Debug mode.

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