TALEND-CORE-DEVELOPER PRINTABLE PDF - 100% HIGH HIT RATE QUESTIONS POOL

Talend-Core-Developer Printable PDF - 100% High Hit Rate Questions Pool

Talend-Core-Developer Printable PDF - 100% High Hit Rate Questions Pool

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Talend Core Certified Developer Exam Sample Questions (Q33-Q38):

NEW QUESTION # 33
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 Studio Talend Cloud preferences.
  • C. In the engine run script command line as a parameter.
  • D. In the key configuration file of the engine.

Answer: A,D

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 # 34
What is the generic Input component used for in a Joblet design?

  • A. Triggering a Joblet
  • B. Triggering a subJob
  • C. Carrying data into a Joblet
  • D. Carrying data into a subJob

Answer: C

Explanation:
The generic Input component used for in a Joblet design is the tJobletInput component. This component is used to carry data into a Joblet from another component in the job that contains the Joblet. A Joblet is a reusable piece of a job that can be used in multiple jobs as a single component. A Joblet can have one or more input and output flows that connect it with other components in a job. To create these flows, you need to use generic input and output components, such as tJobletInput, tJobletOutput, tJobletTriggerInput, and tJobletTriggerOutput. These components allow you to define schemas and triggers for your Joblet without depending on specific components.
The tJobletInput component is not used for triggering a Joblet, triggering a subjob, or carrying data into a subjob. These are different concepts and functionalities in Talend Studio. A trigger is a link that activates a subjob or a component based on a condition or an event. A subjob is a part of a job that consists of one or more components connected by data flows or triggers. A subjob can be triggered by another subjob using triggers such as OnSubjobOk, OnSubjobError, Run if, etc. A subjob can also carry data into another subjob using data flows such as main, lookup, reject, etc. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [tJobletInput properties - 7.3], [Joblets - 7.3], [Triggers - 7.3]


NEW QUESTION # 35
In some instances, after applying changes to a component schema, you are asked if you would like to propagate the changes. What is the significance of thisprompt?

  • A. Confirm that you want to apply the schema changes to the next component in the Job.
  • B. Confirm that you want to apply the schema changes to the selected component.
  • C. Confirm that you want to apply the schema changes to the previous component in the Job.
  • D. Confirm that you want to apply the schema changes to both the previous and next components in the Job.

Answer: A

Explanation:
When you modify the schema of a component in Talend Studio, the application prompts you to propagate these changes. This propagation ensures that any alterations to the data structure are consistently applied throughout the Job, maintaining data integrity and coherence.
Understanding Schema Propagation:
* Purpose:Schema propagation is essential to synchronize the data structure across connected components. When a schema changes (e.g., adding or removing a column), downstream components that rely on this schema need to be updated to reflect these changes.
* Prompt Significance:The prompt serves as a confirmation to apply the schema changes to the subsequent components in the Job. By agreeing to propagate, Talend Studio automatically updates the schemas of all downstream components connected to the modified component.
Example Scenario:
Consider a Job where a tFileInputDelimited component reads data and passes it to a tMap component, which then outputs to a tFileOutputDelimited component. If you add a new column to the schema of tFileInputDelimited:
* Modification:
* You add a new column, 'emailAddress', to the tFileInputDelimited schema.
* Propagation Prompt:
* Upon making this change, Talend Studio prompts you to propagate the schema changes.
* Effect of Propagation:
* By confirming, the 'emailAddress' column is added to the schemas of all downstream components (e.g., tMap and tFileOutputDelimited). This ensures that these components recognize and can process the new column appropriately.
By understanding and utilizing schema propagation, you ensure that all components within your Talend Jobs remain synchronized, reducing errors and enhancing data processing efficiency.


NEW QUESTION # 36
Which component can be used to read a CSV file in an ESB Route?

  • A. cMap
  • B. tFileInputDelimited
  • C. tMap
  • D. cFileInputDelimited
  • E. cFile

Answer: D

Explanation:
Comprehensive and Detailed Explanation:
In Talend's Enterprise Service Bus (ESB) routes, the appropriate component to read a CSV file is cFileInputDelimited. This component is specifically designed for Camel routes to handle delimited files like CSVs.


NEW QUESTION # 37
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. Add the component, then drag and drop a generic schema metadata item onto the component.
  • C. Add the component, open the Component view, select the Built-in schema type, then click the Edit schema button.
  • D. Drag a generic schema metadata item onto the Designer.
  • E. Drag a File delimited metadata item from the Repository onto the design workspace.

Answer: B,C,E

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 # 38
......

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