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100% Pass Quiz 2025 Authoritative Talend-Core-Developer: Talend Core Certified Developer Exam Valid Exam Fee

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Talend Core Certified Developer Exam Sample Questions (Q49-Q54):

NEW QUESTION # 49
How do you create an empty Joblet?

A. Create an empty Job, then export it as a Joblet by right-clicking it in the Repository.
B. Create an empty Jon and use the file menu to save it as Joblet.
C. Right-click Joblet Designs the Repository and select Create Joblet.
D. Right-clicking a space in the Designer and select refactor to Joblect.

Answer: C

Explanation:
To create an empty Joblet, you need to right-click on the Joblet Designs node in the Repository tree view and select Create Joblet option. This will open a dialog box where you can enter the name and description of your Joblet and select an icon for it. You can then design your Joblet by adding components and links to it in the Designer workspace.
You cannot create an empty Joblet by creating an empty job, then exporting it as a Joblet by right-clicking it in the Repository, creating an empty job and using the file menu to save it as Joblet, or right-clicking a space in the Designer and selecting refactor to Joblet. These methods are not available in Talend Studio and may cause errors or unexpected results. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Joblets - 7.3]

NEW QUESTION # 50
You are using a tRESTClient component to call a REST service. Which advanced option should you use to convert the response from the server to the document type?

A. Convert Response To HTML Document
B. Convert Response To XML Document
C. Convert Response To JSON Document
D. Convert Response To DOM Document

Answer: D

Explanation:
Comprehensive and Detailed Explanation:
In Talend Studio, the tRESTClient component includes an advanced setting called"Convert Response To DOM Document". When this option is selected, the response from the REST service is converted into a DOM (Document Object Model) document. This allows for structured processing of the response data within Talend workflows.

NEW QUESTION # 51
You need to create a centralized metadata connection to a database server for an application. Which steps should you take before building a Job that reads from that database? Choose 3 answers.

A. Drag the Db Connections metadata onto the Designer to read from the database component.
B. Add a tCreateTable component to create a table in the database.
C. Retrieve the schemas from the database connection.
D. Create Db Connections metadata to describe the database connection.
E. Add a tMap component to handle and convert Db Types.

Answer: A,C,D

Explanation:
Comprehensive and Detailed Explanation:
To establish a centralized metadata connection to a database server in Talend Studio, follow these steps before constructing a Job that reads from the database:
* Create Db Connections Metadata to Describe the Database Connection (Option C):
* In the Repository panel, right-click on "Metadata" and select "Create connection."
* Fill in the necessary details such as database type, host, port, database name, username, and password.
* Test the connection to ensure it is configured correctly.
* Save the connection metadata for reuse across multiple Jobs.
* Retrieve the Schemas from the Database Connection (Option E):
* After creating the database connection metadata, expand it to view the available schemas.
* Retrieve the required schemas by importing the table structures.
* This step ensures that the schema definitions are centralized and can be reused in different Jobs.
* Drag the Db Connections Metadata onto the Designer to Read from the Database Component (Option D):
* In the Repository, locate the previously created database connection metadata.
* Drag and drop the desired table or schema onto the Designer workspace.
* Talend Studio will automatically create the appropriate input component (e.g., tDBInput) configured with the connection and schema details.
By following these steps, you ensure a centralized and consistent approach to managing database connections and schemas, promoting reusability and reducing configuration errors.

NEW QUESTION # 52
You need to share a connection between multiple database components in a Studio Job. Which component should you use?

A. tDBCommit
B. tDBOutput
C. tDBRun
D. tDBConnection

Answer: D

Explanation:
Comprehensive and Detailed Explanation:
In Talend, when multiple components need to share the same database connection, thetDBConnection component is used.
* tDBConnection (Correct Answer - Option D):
* This component establishes a database connection that can bereused by multiple database components(such as tDBInput, tDBOutput, and tDBRow) within the same Job.
* Reduces redundant connection creation,improving performance and efficiency.
* To use it, other database components must set"Use an existing connection"in their configuration.
* Why not other options?
* tDBOutput (Option A):Used for writing data to a database but does not manage shared connections.
* tDBRun (Option B):Used to execute a subJob but does not handle database connections.
* tDBCommit (Option C):Used for committing transactions, but it requires a shared connection (which tDBConnection provides).

NEW QUESTION # 53
Which locations allow you to view a dataset in Talend Cloud Data Preparation? Choose 3 answers.

A. Data preparation overview
B. Dataset properties
C. Dataset overview
D. Dataset sample
E. Dataset patterns

Answer: C,D,E

Explanation:
Comprehensive and Detailed Explanation:
In Talend Cloud Data Preparation, users can view and interact with datasets through various interfaces:
* Dataset overview (Option C):
* Provides a general summary of the dataset, including metadata, quality metrics, and other pertinent information.
* Dataset patterns (Option D):
* Displays recurring patterns within the dataset, helping users understand data distributions and identify anomalies.
* Dataset sample (Option E):
* Allows users to view a sample of the dataset's records, facilitating data exploration and preparation tasks.
Why not other options?
* Option A:"Data preparation overview" is not a standard feature or terminology within Talend Cloud Data Preparation.
* Option B:"Dataset properties" typically refers to metadata and configuration settings, not the data content itself.

NEW QUESTION # 54
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