ACE TALEND TALEND-CORE-DEVELOPER EXAM INSTANTLY WITH THIS TRIED-AND-TESTED METHOD

Ace Talend Talend-Core-Developer Exam Instantly with This Tried-and-Tested Method

Ace Talend Talend-Core-Developer Exam Instantly with This Tried-and-Tested Method

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Talend Core Certified Developer Exam Sample Questions (Q18-Q23):

NEW QUESTION # 18
Which actions can you perform in the configuration panel in Pipeline Designer? Choose 2 answers.

  • A. Modify processor values.
  • B. Preview changes made by processors.
  • C. Display and update dataset connections.
  • D. Select the settings for a pipeline export.

Answer: A,C

Explanation:
Comprehensive and Detailed Explanation:
In Talend Pipeline Designer, theconfiguration panelprovides options for managing and modifying the settings of components within a pipeline.
* Modify processor values (Option A):
* Users can adjust values for processors such as filters, joins, transformations, and aggregations within the configuration panel.
* This helps fine-tune data processing rules directly in the pipeline.
* Display and update dataset connections (Option B):
* The configuration panel allows users to change dataset connections, updating the source or target locations of data.
* Users can modify database credentials, file paths, or API endpoints as needed.
Why not other options?
* Option C:The ability to preview changes made by processors is handled in thepreview panel, not the configuration panel.
* Option D:Pipeline export settings are managed separately in theexport settings menu, not in the configuration panel.


NEW QUESTION # 19
How many sample dataset records and rows can be displayed in Talend Cloud Data Preparation?

  • A. All the available records
  • B. 1,000
  • C. 5,000
  • D. 10,000

Answer: D

Explanation:
Comprehensive and Detailed Explanation:
In Talend Cloud Data Preparation, the platform is designed to handle large datasets efficiently by displaying a sample of the data to the user. By default, Talend Cloud Data Preparation can display up to 10,000 records from a dataset. This sampling approach ensures that users can interact with and analyze their data without performance issues that might arise from loading an entire large dataset into memory. Users have the option to view the first 10,000 records (Head sample) or 10,000 randomly selected records (Random sample) to get a representative understanding of the dataset's content.


NEW QUESTION # 20
You built multiple Jobs in Studio, each uses its own tDBInput component to connect to a common database server, but they all use different credentials. How should you configure the tDBInput components?

  • A. Set the Property type to Repository and use a common DB connection metadata.
  • B. Set the Property type to Built-in and set all the relevant properties manually.
  • C. Set the Property type to Repository and replace the credentials in each component.
  • D. Set the Database field to Metadata.

Answer: B

Explanation:
Comprehensive and Detailed Explanation:
When multiple Jobs require connections to the same database server but with different credentials, the recommended approach is:
* Set the Property Type to Built-in and Set All the Relevant Properties Manually (Option C):
* In each tDBInput component, set the 'Property Type' to 'Built-in.'
* Manually enter the connection details, including the specific username and password required for that particular Job.
This approach ensures that each Job uses its own set of credentials, maintaining the necessary security and access controls.


NEW QUESTION # 21
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

  • A. Comparing time stamp in Trace Debug mode.
  • B. Observing the execution times that annotate the flows in the Designer.
  • C. Heading the time stamps from the execution console in the Run view.
  • D. Observing the execution time in the Code view.

Answer: B,C

Explanation:
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. References: 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]


NEW QUESTION # 22
Which action should you perform to calculate the overall Trust Score for multiple customer datasets?

  • A. Use the search bar to filter the customer datasets and manually calculate the score.
  • B. Use the search bar to filter the customer datasets, and the score will automatically update.
  • C. Mark the datasets in the dataset list, and the score updates in the detailed view.
  • D. Review the rating of selected datasets in the group tab.

Answer: B

Explanation:
Comprehensive and Detailed Explanation:
To calculate the overall Trust Score for multiple customer datasets:
* Use the search bar to filter the customer datasets, and the score will automatically update (Option B):
* Filtering datasets using the search functionality aggregates the Trust Scores of the selected datasets, providing an overall score for the group.
Why not other options?
* Option A: Reviewing individual ratings does not provide an aggregated Trust Score.
* Option C: Marking datasets does not trigger an automatic update of the aggregated score.
* Option D: Manual calculation is unnecessary as the system provides automatic aggregation upon filtering.


NEW QUESTION # 23
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