FREE PDF QUIZ 2025 TALEND THE BEST TALEND-CORE-DEVELOPER: TEST TALEND CORE CERTIFIED DEVELOPER EXAM SAMPLE QUESTIONS

Free PDF Quiz 2025 Talend The Best Talend-Core-Developer: Test Talend Core Certified Developer Exam Sample Questions

Free PDF Quiz 2025 Talend The Best Talend-Core-Developer: Test Talend Core Certified Developer Exam Sample Questions

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Talend Core Certified Developer Exam Sample Questions (Q27-Q32):

NEW QUESTION # 27
You need a list of all customers whose first name contains "Tom" and who are older than 18. Which processor should be used?

  • A. Data sampling
  • B. Aggregate
  • C. Filter
  • D. Join

Answer: C

Explanation:
Comprehensive and Detailed Explanation:
To filter customer records based onfirst name containing "Tom"andage greater than 18, theFilter processor is the correct choice.
* TheFilter processorallows users to setconditional rulesto extract only the required data.
* Users can specify conditions such as:
first_name CONTAINS "Tom"
AND
age > 18
* This ensures that only relevant records are included in the output.
Why not other options?
* Option A (Join):Used to combine data from multiple datasets based on a key field, not for filtering.
* Option B (Aggregate):Used for summarizing data, such as calculating counts, sums, or averages.
* Option D (Data Sampling):Used to select a random subset of data, not for filtering based on conditions.


NEW QUESTION # 28
Whatare the key capabilities of Talend Cloud Data Preparation that improve data quality and accessibility?
Choose 2 answers

  • A. Standardize data
  • B. Transform
  • C. Cleanse data
  • D. Discover

Answer: A,C


NEW QUESTION # 29
What is the default port for the REST Endpoint when using tRESTRequest in Talend Studio?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: D

Explanation:
Comprehensive and Detailed Explanation:
The defaultREST endpoint port for tRESTRequest in Talend Studio is 8090.
* Port 8090 (Correct Answer - Option D):
* When running a REST service insideTalend Studio, the default listening port is8090.
* This can be changed in the component settings if required.
* Other port options explained:
* 5040 & 5070: Not default ports used for Talend REST services.
* 8040: Used inTalend Runtime, not in Studio.


NEW QUESTION # 30
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 XML Document
  • B. Convert Response To HTML 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 # 31
You are collaborating on a project with other developers using talend best practices.
When should you use a tag?

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

Answer: C

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 # 32
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