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Talend Core Certified Developer Exam Sample Questions (Q21-Q26):

NEW QUESTION # 21
Which methods can you use to specify the schema in a tFileInputDelimited component? Choose 3 answers.

A. Add the schema to the component using the Schema Editor.
B. Drag a File delimited metadata item from the Repository onto the design workspace.
C. Add the component, then drag and drop a generic schema metadata item onto the component.
D. Add the component, open the Component view, select the Built-in schema type, then click the Edit schema button.
E. Drag a generic schema metadata item onto the Designer.

Answer: B,C,D

Explanation:
In Talend Studio, there are multiple methods to specify the schema for a tFileInputDelimited component. The three primary approaches include:
A: Add the component, open the Component view, select the Built-in schema type, then click the Edit schema button.
* Process:
* Add the Component:
* Drag and drop the tFileInputDelimited component onto the design workspace.
* Access Component View:
* Click on the component to open its Basic settings in the Component view.
* Select Built-in Schema Type:
* Under the 'Schema' section, choose 'Built-In' from the 'Property Type' dropdown menu.
* Edit Schema:
* Click the 'Edit schema' button to define the schema structure by adding columns and specifying their data types.

NEW QUESTION # 22
Which actions can you perform in the configuration panel in Pipeline Designer? Choose 2 answers.

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

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 # 23
Which statements are true about the execution logs of a task running on a Remote Engine? Choose 2 answers.

A. Logs are stored in an H2 database hosted on the server where the Remote Engine is running.
B. Logs are stored in the file system of the server where the Remote Engine is running.
C. Logs are stored in Parquet format on the server where the Remote Engine is running.
D. Logs can be downloaded from Talend Management Console.

Answer: B,D

Explanation:
Comprehensive and Detailed Explanation:
When a task executes on a Talend Remote Engine, the execution logs are handled as follows:
* Logs are stored in the file system of the server where the Remote Engine is running (Option A):
* The Remote Engine writes execution logs to its local file system, typically in plain text or log formats. These logs provide detailed information about the task's execution and are essential for troubleshooting and monitoring.
* Logs can be downloaded from Talend Management Console (Option C):
* Talend Management Console (TMC) aggregates execution logs from Remote Engines, allowing users to access and download them directly through the TMC interface. This centralized access simplifies monitoring and debugging across multiple environments.
Why not other options?
* Option B:While some components of Talend may use H2 databases for internal purposes, execution logs are not typically stored in an H2 database on the Remote Engine server.
* Option D:Execution logs are generally stored in plain text or standard log formats, not in Parquet format. Parquet is a columnar storage file format commonly used for efficient data processing, not for logging purposes.

NEW QUESTION # 24
Which concepts are a part of Pipeline Designer? Choose 3 answers.

A. Processor
B. Connection
C. Preparations
D. Dataset
E. Context variables

Answer: A,B,D

Explanation:
Comprehensive and Detailed Explanation:
Talend's Pipeline Designer is a tool that enables users to design and execute data integration workflows. Key components of Pipeline Designer include:
* Connection (Option C):
* Defines the link between Pipeline Designer and various data sources or destinations, specifying how to access and interact with external systems.
* Dataset (Option D):
* Represents the structured data that flows through the pipeline, serving as the input or output of various processing steps.
* Processor (Option E):
* Performs specific operations on the data within the pipeline, such as transformations, aggregations, or filtering, to achieve the desired data processing outcomes.
Why not other options?
* Option A:While context variables are used in Talend Studio for parameterizing jobs, they are not a primary concept in Pipeline Designer.
* Option B:"Preparations" refer to data transformation sequences in Talend Data Preparation, not directly in Pipeline Designer.

NEW QUESTION # 25
You want to improve the Trust Score of your dataset as a dataset owner. Which actions should you perform? Choose 2 answers.

A. Improve the quality of the dataset using Pipeline Designer
B. Use the dataset in an ETL Job
C. Change the dataset score manually
D. Add ratings to the dataset

Answer: A,D

Explanation:
Comprehensive and Detailed Explanation:
To enhance the Trust Score of a dataset:
* Improve the quality of the dataset using Pipeline Designer (Option A):
* Utilizing Talend's Pipeline Designer allows you to cleanse, transform, and enrich your data, thereby improving its quality and, consequently, its Trust Score.
* Add ratings to the dataset (Option D):
* Encouraging users to rate the dataset increases its popularity metric, positively impacting the overall Trust Score.
Why not other options?
* Option B: The Trust Score is automatically calculated based on specific metrics; it cannot be manually altered.
* Option C: While using the dataset in ETL jobs indicates its utility, it does not directly influence the Trust Score unless it affects metrics like usage or popularity.

NEW QUESTION # 26
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