Get Latest Feb-2026 Real Talend-Core-Developer Exam Questions and Answers FREE [Q24-Q44]

Get Latest Feb-2026 Real Talend-Core-Developer Exam Questions and Answers FREE

Truly Beneficial For Your Talend Exam (Updated 57 Questions)

NEW QUESTION # 24
Which concepts are a part of Pipeline Designer? Choose 3 answers.

• A. Dataset
• B. Preparations
• C. Processor
• D. Connection
• E. Context variables

Answer: A,C,D

Explanation:
Comprehensive and Detailed Explanation:
Talend's Pipeline Designer is a tool that enables users to design and execute data integration workflows. Key components of Pipeline Designer include:
* Connection (Option C):
* Defines the link between Pipeline Designer and various data sources or destinations, specifying how to access and interact with external systems.
* Dataset (Option D):
* Represents the structured data that flows through the pipeline, serving as the input or output of various processing steps.
* Processor (Option E):
* Performs specific operations on the data within the pipeline, such as transformations, aggregations, or filtering, to achieve the desired data processing outcomes.
Why not other options?
* Option A:While context variables are used in Talend Studio for parameterizing jobs, they are not a primary concept in Pipeline Designer.
* Option B:"Preparations" refer to data transformation sequences in Talend Data Preparation, not directly in Pipeline Designer.

NEW QUESTION # 25
Which type of task can be added to a plan in Talend Management Console?

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

Answer: D

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 # 26
You create a Job consisting of two subJobs, A and B. You added Joblet C with the intension of running it between A and B.
What are the minimum requirements to orchestrate this? (Choose Two)

• A. Add TRIGGER_INPUT and TRIGGER_OUTPUT components into A.
• B. Link A, B and C using On Subject Ok triggers.
• C. Add TRIGGER_INPUT and TRIGGER_OUTPUT components into C
• D. Add TRIGGER_INPUT and TRIGGER_OUTPUT components into B.

Answer: B,C

Explanation:
To create a job consisting of two subjobs, A and B, and add a Joblet C with the intention of running it between A and B, you need to do the following steps:
* Design subjob A by adding components and links to it in the Designer workspace.
* Add a Start component to mark the beginning of subjob B and link it to subjob A using an OnSubjobOk trigger.
* Design subjob B by adding components and links to it after the Start component in the Designer workspace.
* Add a tJobletTriggerInput component to your Joblet C design and link it to other components in your Joblet using data flows or triggers.
* Add a tJobletTriggerOutput component to your Joblet C design and link it to other components in your Joblet using data flows or triggers.
* Drag your Joblet C from the Repository tree view to the Designer workspace between subjob A and subjob B.
* Link your Joblet C to subjob A using an OnComponentOk trigger from the last component of subjob A to the tJobletTriggerInput component of your Joblet C.
* Link your Joblet C to subjob B using an OnComponentOk trigger from the tJobletTriggerOutput component of your Joblet C to the Start component of subjob B.
The minimum requirements to orchestrate this are adding TRIGGER_INPUT and TRIGGER_OUTPUT components into C and linking A, B, and C using OnSubjobOk triggers. These are generic components that allow you to define triggers for your Joblet without depending on specific components. You do not need to add TRIGGER_INPUT and TRIGGER_OUTPUT components into A or B, as these are regular subjobs that can use any type of components or triggers. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [tJobletTriggerInput properties - 7.3], [tJobletTriggerOutput properties - 7.3],
[Joblets - 7.3], [Triggers - 7.3]

NEW QUESTION # 27
Which aspects contribute to the calculation of the validity of a dataset? Choose 2 answers.

• A. Number of valid and invalid values across the dataset sample
• B. Use of user ratings and certification
• C. Use of semantic types across the dataset sample
• D. Number of empty rows across the dataset sample

Answer: A,C

Explanation:
Comprehensive and Detailed Explanation:
The validity of a dataset in Talend's Trust Score framework is determined by:
* Number of valid and invalid values across the dataset sample (Option B):
* This metric assesses the quality of the data by evaluating the proportion of valid entries compared to invalid ones. A higher number of valid values indicates better data quality.
* Use of semantic types across the dataset sample (Option C):
* Semantic types help in understanding the meaning and context of data fields. Consistent and correct application of semantic types ensures that data is interpreted accurately, contributing to its validity.
Why not other options?
* Option A: User ratings and certification pertain to the popularity axis, reflecting user trust and endorsement, not the intrinsic validity of the data.
* Option D: The number of empty rows relates to the completeness axis, indicating missing data, rather than directly affecting validity.

NEW QUESTION # 28
You want to create a generic schema using a schema defined in a Talend component in the Repository view.
How can you accomplish this?

• A. In the Repository, by right-clicking Generic schemas.
• B. In the Schema Editor window for the component.
• C. On the Advanced settings tab of the Component view.
• D. By right-clicking the component and selecting the Generic schema option.

Answer: A

Explanation:
To create a generic schema from a schema defined in a Talend component, follow these steps:
* Open the Repository View:
* In Talend Studio, navigate to the Repository panel, typically located on the left side of the interface.
* Locate the 'Generic schemas' Node:
* Within the Repository, expand the 'Metadata' section to find the 'Generic schemas' node.
* Initiate the Generic Schema Creation Process:
* Right-click on 'Generic schemas' and select 'Create generic schema' from the context menu.
* Define the Schema Properties:
* In the schema creation wizard that appears, provide the necessary properties such as 'Name' and
'Description' for the new generic schema.
* Set Up the Schema Structure:
* Define the schema structure by adding columns and specifying their data types as required.
* Finalize the Schema Creation:
* Click 'Finish' to complete the creation process. The new generic schema will now be available under the 'Generic schemas' node in the Repository.
This method allows you to create a reusable generic schema that can be applied across multiple components and Jobs within Talend Studio.

NEW QUESTION # 29
Which statements describe the Talend Cloud Data Inventory Trust Score? Choose 2 answers.

• A. Aggregates several metrics into a single score.
• B. Helps data consumers assign a score representing the quality of the dataset.
• C. Scales the Trust Score from 0 to 5.
• D. Scales the Trust Score from 0 to 10.

Answer: A,C

Explanation:
Comprehensive and Detailed Explanation:
The Talend Trust Score is a feature of Talend Cloud Data Inventory that provides an assessment of a dataset's reliability and quality:
* Aggregates several metrics into a single score (Option A):
* The Trust Score combines multiple factors, including validity, completeness, popularity, discoverability, and usage, into a single, comprehensive score. This aggregation helps users quickly gauge the overall trustworthiness of a dataset.
* Scales the Trust Score from 0 to 5 (Option C):
* The Trust Score ranges from 0 to 5, with higher scores indicating better data quality and reliability. This standardized scale allows for easy comparison between datasets.
Why not other options?
* Option B:While data consumers can view and utilize the Trust Score, it is automatically calculated by Talend based on specific metrics; users do not assign this score themselves.
* Option D:The Trust Score does not use a 0 to 10 scale; it specifically ranges from 0 to 5.

NEW QUESTION # 30
Which statements are true when comparing a Joblet to a tRunJob component?
Choose 3 answers

• A. The performance of a Joblet if better than running an equivalent Job using a tRunJob component.
• B. Building a Joblet typically requires the use of generic input, and trigger component.
• C. A Joblet uses the same context variables of the Job in which it is used, unlinke a tRunJob component.
• D. The performance of tRunJob component is better than running an equivalent Job using a Joblet.
• E. The nested Job called by a tRunJob component cannot use the same context variable of the Job in which it is used.

Answer: B,C,E

Explanation:
A Joblet is a reusable piece of a job that can be used in multiple jobs as a single component. A tRunJob component is a component that allows you to call another job as a subjob within a parent job. When comparing a Joblet to a tRunJob component, these statements are true:
* A Joblet uses the same context variables of the job in which it is used, unlike a tRunJob component. A context variable is a variable that can store a value that can be changed at runtime or between different contexts. A Joblet inherits the context variables from the job that contains it and does not have its own context variables. A tRunJob component can pass context variables from the parent job to the child job, or use a specific context for the child job.
* Building a Joblet typically requires the use of generic input and trigger components. 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 trigger components, such as tJobletInput, tJobletOutput, tJobletTriggerInput, and tJobletTriggerOutput. These components allow you todefine schemas and triggers for your Joblet without depending on specific components.
* The nested job called by a tRunJob component cannot use the same context variables of the job in which it is used. A nested job is a job that is called by another job using a tRunJob component. A nested job can have its own context variables or receive context variables from its parent job, but it cannot use the same context variables as its parent job. This means that if you have two context variables with the same name in both jobs, they will be treated as separate variables and will not share values.
These statements are false when comparing a Joblet to a tRunJob component:
* The performance of tRunJob component is better than running an equivalent job using a Joblet. The performance of a Joblet is better than running an equivalent job using a tRunJob component. This is because a Joblet is integrated into the main code of the job and does not require launching another JVM process or loading another metadata object like a tRunJob component does. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Joblets - 7.3], [tRunJob properties - 7.3],
[Contexts - 7.3]

NEW QUESTION # 31
Which Action on table operations are supported by a tMysqlOutput component? Choose 3 answers.

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

Answer: A,D,E

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 # 32
User A shared a connection with User B. User B used the shared connection and created Dataset_1. User A stops sharing the connection with User B. Which statement is true about access to Dataset_1?

• A. User B has full access to Dataset_1.
• B. User B has no access to Dataset_1.
• C. User B has limited access to Dataset_1.
• D. User A has full access to Dataset_1.

Answer: A

Explanation:
Comprehensive and Detailed Explanation:
In Talend Cloud Data Inventory, when a user creates a dataset using a shared connection, the following applies:
* User B has full access to Dataset_1 (Option D):
* Once User B creates Dataset_1 using the shared connection, they become the owner of that dataset. Even if User A later revokes access to the connection, User B retains full access to Dataset_1. The dataset's accessibility is independent of the connection's sharing status after its creation.
Why not other options?
* Option A:User B's access to Dataset_1 is not limited; they have full ownership and control.
* Option B:Revoking the connection does not remove User B's access to datasets they have already created.
* Option C:User A's access to Dataset_1 depends on the sharing settings applied by User B; by default, User A does not have access unless granted.

NEW QUESTION # 33
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. Retrieve the schemas from the database connection.
• B. Drag the Db Connections metadata onto the Designer to read from the database component.
• C. Create Db Connections metadata to describe the database connection.
• D. Add a tCreateTable component to create a table in the database.
• E. Add a tMap component to handle and convert Db Types.

Answer: A,B,C

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 # 34
You need to set up a server in your Talend environment that enables several members of your team to collaborate on a project.
Which application must you enable before working on a remote project?

• A. Talend admission Center service must be running on each development workstation.
• B. Talent Administration Center instance must be running with the team members and project configured.
• C. Git or SVN client must be installed on each developed workstation.
• D. Git or SVN server instance must be running.

Answer: B,D

NEW QUESTION # 35
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 DOM Document
• D. Convert Response To JSON Document

Answer: C

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 # 36
You built multiple Jobs in Studio, each uses its own tDBInput component to connect to a common database server, but they all use different credentials. How should you configure the tDBInput components?

• A. Set the Database field to Metadata.
• B. Set the Property type to Built-in and set all the relevant properties manually.
• C. Set the Property type to Repository and use a common DB connection metadata.
• D. Set the Property type to Repository and replace the credentials in each component.

Answer: B

Explanation:
Comprehensive and Detailed Explanation:
When multiple Jobs require connections to the same database server but with different credentials, the recommended approach is:
* Set the Property Type to Built-in and Set All the Relevant Properties Manually (Option C):
* In each tDBInput component, set the 'Property Type' to 'Built-in.'
* Manually enter the connection details, including the specific username and password required for that particular Job.
This approach ensures that each Job uses its own set of credentials, maintaining the necessary security and access controls.

NEW QUESTION # 37
Which file should you edit to enable SSL for a JobServer?

• A. Conf/server.xml
• B. Jsl_stati64.ini
• C. Conf/TalendJobServer.properties
• D. Conf/TalendServer.properties

Answer: C

Explanation:
To enable SSL for a JobServer, you need to edit the conf/TalendJobServer.properties file. A JobServer is a server application that allows you to execute jobs remotely from Talend Studio or Talend Administration Center. The conf/TalendJobServer.properties file contains various configuration parameters for your JobServer, such as port number, log level, security options, etc. To enable SSL for your JobServer, you need to set the sslparameter to true and provide the path and password of your keystore file that contains your SSL certificate.
You do not need to edit conf/TalendServer.properties, conf/server.xml, or jsl_static64.ini files. These files are not related to JobServer configuration or SSL settings. The conf/TalendServer.properties file is used to configure Talend Administration Center settings, such as database connection, LDAP authentication, email notification, etc. The conf/server.xml file is used to configure Tomcat server settings, such as connectors, realms, valves, etc. The jsl_static64.ini file is used to configure Java Service Launcher settings, such as service name, description, startup type, etc. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Configuring Talend JobServer - 7.3], [Configuring Talend Administration Center - 7.3],
[Configuring Tomcat - 7.3], [Installing Java Service Launcher - 7.3]

NEW QUESTION # 38
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 the engine run script command line as a parameter.
• D. In Studio Talend Cloud preferences.

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 # 39
How many sample dataset records and rows can be displayed in Talend Cloud Data Preparation?

• A. 5,000
• B. All the available records
• C. 1,000
• D. 10,000

Answer: D

Explanation:
Comprehensive and Detailed Explanation:
In Talend Cloud Data Preparation, the platform is designed to handle large datasets efficiently by displaying a sample of the data to the user. By default, Talend Cloud Data Preparation can display up to 10,000 records from a dataset. This sampling approach ensures that users can interact with and analyze their data without performance issues that might arise from loading an entire large dataset into memory. Users have the option to view the first 10,000 records (Head sample) or 10,000 randomly selected records (Random sample) to get a representative understanding of the dataset's content.

NEW QUESTION # 40
You need to set up a server in your Talend environment that enables several members of your team to collaborate on a project.
Which application must you enable before working on a remote project?

• A. Talend admission Center service must be running on each development workstation.
• B. Talent Administration Center instance must be running with the team members and project configured.
• C. Git or SVN client must be installed on each developed workstation.
• D. Git or SVN server instance must be running.

Answer: B,D

Explanation:
To set up a server in your Talend environment that enables several members of your team to collaborate on a project, you need to enable two applications before working ona remote project: Git or SVN server instance and Talend Administration Center instance. These applications are used to manage version control and collaboration for your project.
Git or SVN server instance is a server application that allows you to store and track changes of your project files using a version control system. Git and SVN are two popular version control systems that are supported by Talend Studio. You need to have a Git or SVN server instance running and accessible by your team members before working on a remote project. You also need to have a Git or SVN client installed on each development workstation to connect to the server and perform version control operations.
Talend Administration Center is a web-based application that allows you to manage users, projects, tasks, execution servers, and licenses for your Talend environment. You need to have a Talend Administration Center instance running and accessible by your team members before working on a remote project. You also need to configure the team members and project settings in Talend Administration Center to grant access and permissions for your project. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Version control - 7.3], [Talend Administration Center - 7.3]

NEW QUESTION # 41
You are building a complex Job and want to explore different options for optimizing execution times using parallelism.
How can you identify execution times to verify the effectiveness of your changes?
Choose 2 answers

• A. Observing the execution times that annotate the flows in the Designer.
• B. Heading the time stamps from the execution console in the Run view.
• C. Observing the execution time in the Code view.
• D. Comparing time stamp in Trace Debug mode.

Answer: A,B

Explanation:
To identify execution times to verify the effectiveness of your changes, you can use one of these methods:
* Reading the time stamps from the execution console in the Run view. This method allows you to see the start and end time of each subjob and component in your job, as well as the total execution time of the job. You can also see the number of rows processed by each component and the status of the job (success or failure).
* Observing the execution times that annotate the flows in the Designer. This method allows you to see the execution time of each flow (main, lookup, reject, etc.) between components in your job. You can also see the number of rows processed by each flow and the throughput (rows per second) of each flow.
You cannot use these methods to identify execution times:
* Observing the execution time in the Code view. This method does not show you the execution time of your job or its components, but only the generated code of your job in Java or Perl. The Code view is useful for debugging or customizing your code, but not for measuring performance.
* Comparing time stamps in Trace Debug mode. This method does not show you the execution time of your job or its components, but only the values of each column for each row processed by your job. The Trace Debug mode is useful for tracing data quality or transformation issues, but not for measuring performance. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend,
[Run view - 7.3], [Designer - 7.3], [Code view - 7.3], [Trace Debug mode - 7.3]

NEW QUESTION # 42
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 # 43
Where can you specify the remote JobServer to execute a Job?

• A. Extra tab in the Job view
• B. Job settings section of the Project Settings windows
• C. Run/Debug section in the Preference window
• D. Target Exec tab in the Run view

Answer: D

Explanation:
To specify the remote JobServer to execute a job, you need to use the Target Exec tab in the Run view of Talend Studio. The Run view allows you to configure and execute your job from Talend Studio. The Target Exec tab allows you to select whether you want to run your job locally or remotely on a JobServer. A JobServer is a server application that allows you to execute jobs remotely from Talend Studio or Talend Administration Center. To run your job on a remote JobServer, you need to select Remote Jobserver option from the drop-down menu and select or add a JobServer connection from the list.
You do not need to use Job settings section of Project Settings window, Extra tab in Job view, or Run/Debug section in Preferences window. These windows are not used to specify remote JobServer execution. The Job settings section of Project Settings window is used to configure general settings for your jobs, such as versioning, statistics, logs, etc. The Extra tab in Job view is used to configure extra features for your job, such as implicit context load, tStatCatcher, tLogCatcher, etc. The Run/Debug section in Preferences window is used to configure run/debug settings for your Talend Studio, such as JVM arguments, execution mode, etc. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Run view - 7.3],
[Project Settings - 7.3], [Job view - 7.3], [Preferences - 7.3]

NEW QUESTION # 44
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