[NEW LAUNCH] TALEND TALEND-CORE-DEVELOPER DUMPS (PRACTICE TEST) WITH NEWLY TALEND-CORE-DEVELOPER EXAM

[New Launch] Talend Talend-Core-Developer Dumps (Practice Test) with Newly Talend-Core-Developer Exam

[New Launch] Talend Talend-Core-Developer Dumps (Practice Test) with Newly Talend-Core-Developer Exam

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

NEW QUESTION # 49
Which Action on table operations are supported by a tMysqlOutput component? Choose 3 answers.

  • A. Drop table if exists and create
  • B. Replace
  • C. Create table if does not exist
  • D. Create table
  • E. Drop table

Answer: A,C,D

Explanation:
Comprehensive and Detailed Explanation:
The tMysqlOutput component in Talend provides several actions on tables to manage data output operations effectively. The supported actions include:
* Drop Table if Exists and Create (Option B):
* This action checks if the specified table exists in the database. If it does, the table is dropped and a new one is created. This ensures that the table is recreated fresh for the data load.
* Create Table if Does Not Exist (Option D):
* This action checks if the specified table exists in the database. If it does not exist, the table is created. If it already exists, no action is taken, and the existing table is used.
* Create Table (Option E):
* This action attempts to create the specified table in the database. If the table already exists, an error will occur unless handled appropriately.
These actions provide flexibility in managing database tables during data integration processes, allowing for dynamic table creation and management based on the Job's requirements.


NEW QUESTION # 50
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 both the previous and next components in the Job.
  • 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 the selected component.

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 # 51
You designing a Job that can run in two contexts, Test and Production. You want to run it as a standalone job outside Talend Studio.
How do you accomplish this?

  • A. Build the Job with the desired context selected in the Build Job windows. Build a separate copy if you need to run the Job in a different context.
  • B. Set the desired context as the default, then build the Job. Rebuild the Job if you need to run it in a different context.
  • C. Build the Job with the Context scripts option selected in the Build Job windows. Before running the Job, edit the script according to the context in which want to run the job.
  • D. Build the Job with the Context scripts option selected in the Build Job windows. You will be prompted for the context.

Answer: A

Explanation:
To design a job that can run in two contexts, Test and Production, and run it as a standalone job outside Talend Studio, you need to do the following steps:
* Define the context variables and values for each context in the Contexts tab of your job. A context variable is a variable that can store a value that can be changed at runtime or between different contexts.
You can use context variables to parameterize the properties or expressions of your job components.
* Build the job with the desired context selected in the Build Job window. You can access this option by right-clicking on your job in the Repository tree view and selecting Build Job. This will open a dialog box where you can configure the build settings, such as destination folder, archive name, context, etc.
You need to select the context that you want to use for your job execution from the drop-down menu.
* Extract the content of the archive file that contains your job executable files and libraries. The archive file also contains two executable files: a batch file (.bat) for Windows platforms and a shell script (.sh) for Linux platforms. You need to run the appropriate file for your platform by double-clicking on it or using a command line tool. This will launch the job and display its output in a console window.
* If you need to run the job in a different context, you need to build a separate copy of the job with the other context selected in the Build Job window. You cannot change the context of an already built job without rebuilding it.
You do not need to build the job with the Context scripts option selected in the Build Job window, edit the script according to the context in which you want to run the job, set the desired context as the default, rebuild the job if you need to run it in a different context, or be prompted for the context. These methods are not correct or available in Talend Studio and may cause errors or unexpected results. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Build Job - 7.3], [Contexts - 7.3]


NEW QUESTION # 52
Which methods can you use to name an output row in a tMap component? Choose 3 answers.

  • A. Select the output row, then open the Component view and click the View tab.
  • B. Click the name of the table in the Map Editor window and edit it.
  • C. Double-click the output row in the Designer and enter a new name.
  • D. Assign the name when connecting a new output component.
  • E. Assign the name when defining a new output table in the Map Editor window.

Answer: B,D,E

Explanation:
In a tMap component, naming an output row correctly helps in managing data flow efficiently. The correct methods are:
* A. Click the name of the table in the Map Editor window and edit it.
* Open tMap, locate the output table, and click its name to edit it directly.
* B. Assign the name when defining a new output table in the Map Editor window.
* When adding a new output table, you can name it immediately in the Map Editor.
* D. Assign the name when connecting a new output component.
* When you connect an output component to tMap, you can assign a custom row name.


NEW QUESTION # 53
Which type of task can be added to a plan in Talend Management Console?

  • A. Jobs
  • B. Routes
  • C. Big Data tasks
  • D. Data services

Answer: A

Explanation:
Comprehensive and Detailed Explanation:
In Talend Management Console (TMC), aplanis a sequence of tasks executed in a defined order. The types of tasks that can be added to a plan include:
* Jobs (Option D):Standard data integration tasks designed in Talend Studio.
* Big Data tasks (Option B):Tasks involving big data processing.
* Routes (Option C):Tasks related to messaging routes.
However,Data services (Option A)refer to web services and are not typically added as tasks within a plan.


NEW QUESTION # 54
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