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Talend Core Certified Developer Exam Sample Questions (Q42-Q47):

NEW QUESTION # 42
You created a Remote Engine in Talend Cloud and copied the Remote Engine key. You downloaded the Remote Engine script for your Linux system, and now you need to pair the engine manually. Which options can you use to set the key? Choose 2 answers.

A. In the Remote Engine web service page.
B. In the key configuration file of the engine.
C. In Studio Talend Cloud preferences.
D. In the engine run script command line as a parameter.

Answer: A,B

Explanation:
Comprehensive and Detailed Explanation:
To manually pair a Remote Engine with Talend Cloud, you can set the pairing key using the following methods:
* In the Remote Engine web service page (Option B):
* Access
the Remote Engine's web interface, typically available at http://localhost:8043/configuration.
* Enter the pairing key obtained from the Talend Management Console.
* Click onPAIR REMOTE ENGINEto establish the connection.
* In the key configuration file of the engine (Option C):
* Locate the preauthorized.key.cfg file in the Remote Engine's etc directory.
* Open the file and paste the pairing key into the remote.engine.pre.authorized.key parameter.
* Save the changes and restart the Remote Engine to apply the configuration.
Why not other options?
* Option A:Setting the pairing key in Talend Studio's preferences is not applicable for pairing a Remote Engine.
* Option D:While it's technically possible to pass the pairing key as a parameter in the engine's run script, it's not the standard or recommended method.

NEW QUESTION # 43
Which operations can you perform using a tMap component? Choose 3 answers.

A. Perform full outer joins.
B. Map data using filters, constraints, and simple explicit joins.
C. Reject data using inner join rejections.
D. Transform data from single or multiple sources to single or multiple destinations.
E. Load single lookup tables only.

Answer: A,B,D

Explanation:
Comprehensive and Detailed Explanation:
The tMap component in Talend allows for various data transformation and mapping operations. The correct operations include:
* A. Map data using filters, constraints, and simple explicit joins.
* tMap allows mapping fields between sources and destinations with filters and constraints.
* B. Perform full outer joins.
* Unlike tJoin, tMap supports full outer joins, allowing all records from both tables to be included.
* C. Transform data from single or multiple sources to single or multiple destinations.
* You can map multiple input sources to multiple output targets with transformations.

NEW QUESTION # 44
You are collaborating on a project with other developers using talend best practices.
When should you use a tag?

A. Denoting a milestone in the lifecycle of a project
B. Fixing hugs or enhancements.
C. Capturing snapshot of a codebase that requires ongoing maintenance.
D. Denoting major or minor releases.

Answer: A

Explanation:
Tags are used to mark specific points in the development lifecycle of a project. This can be done for a variety of reasons, such as:
* To mark the completion of a major feature or release
* To mark the start of a new development phase (e.g., QA, production)
* To mark a known good state of the codebase (e.g., before a risky change) Tags can be used to create branches, which can then be used to develop and test new features or bug fixes.
They can also be used to deploy the codebase to different environments (e.g., development, staging, production).
Examples of when to use a tag:
* When you are ready to release a new version of your application to production.
* When you have completed a major feature or milestone in the development of your application.
* Before making a risky change to your codebase, such as a database migration or refactoring.
* When you need to deploy your application to a different environment, such as staging or production.
Benefits of using tags:
* Tags can help you to keep track of the different versions of your codebase.
* Tags can help you to roll back to a previous version of your codebase if necessary.
* Tags can help you to deploy your codebase to different environments.
* Tags can help you to collaborate with other developers more effectively.

NEW QUESTION # 45
Which statements are true about the execution logs of a task running on a Remote Engine? Choose 2 answers.

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

Answer: A,B

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 # 46
Which HTTP methods are supported by tRESTRequest?

A. GET, POST, UPDATE, and DELETE
B. SELECT, INSERT, UPDATE, and DELETE
C. POST, PATCH, and UPDATE
D. GET, POST, PUT, PATCH, and DELETE

Answer: D

Explanation:
Comprehensive and Detailed Explanation:
The tRESTRequest component in Talend Studio is designed to handle RESTful web service requests. It supports the following HTTP methods:
* GET: Retrieves data from the server.
* POST: Submits data to the server, often causing a change in state or side effects.
* PUT: Replaces all current representations of the target resource with the request payload.
* PATCH: Applies partial modifications to a resource.
* DELETE: Removes the specified resource from the server.
Therefore, the correct answer isA. GET, POST, PUT, PATCH, and DELETE.

NEW QUESTION # 47
......

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Talend-Core-Developer Real Question | Talend-Core-Developer Valid Exam Voucher

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Talend Core Certified Developer Exam Sample Questions (Q42-Q47):

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