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Talend Data-Integration-Developer Exam Questions
- Topic 1: Create a Joblet from the ground up/ Define the tMap Join settings and its rejected capture mechanism
- Topic 2: Handle context variables in standalone Jobs/ Configure a filter reject output along with multiple filtered outputs
- Topic 3: Explain Joblets and compare them to other orchestration primitives/ Join two sources of data using the tMap component
- Topic 4: Customize SQL queries in database components/ Use triggers to create a sequence of subJobs
- Topic 5: Configure a remote connection in Talend Studio/ Send dynamic parameters to a child Job by overriding context variables
- Topic 6: Configure basic component properties/ Define a reference project and use items from a reference project
- Topic 7: Explain key differences between a local and remote connection/ Use the tMap component and configure a simple mapping
- Topic 8: Create ‘if’ triggers based on component variables/ Use metadata, generic schemas, and context variables in database components
- Topic 9: Explain different parallelization options available in Studio/ Describe the order of priority to pass parameters in context variables
- Topic 10: Profile the execution of a Job with and without parallelism applied/ Define a standard context variable use case
Free Talend Data-Integration-Developer Exam Actual Questions
Note: Premium Questions for Data-Integration-Developer were last updated On Apr. 22, 2026 (see below)
Which characteristics distinguish Traces Debug from Java Debug?
Choose 2 answers
Trace Debug and Java Debug are two modes that allow you to debug your jobs in Talend Studio. Trace Debug mode allows you to trace each row processed by your job components and see the values of each column in each row. Java Debug mode allows you to debug your job code in Java or Perl and see the values of each variable or expression in your code.
The characteristics that distinguish Trace Debug from Java Debug are:
Trace Debug mode allows row-by-row inspection of data flows, while Java Debug mode does not. Data flows are the links that show the data transfer between components in your job design workspace. In Trace Debug mode, you can see the data flow on each trace and inspect the values of each column for each row processed by your job. You can also use filters to display only the rows that match a condition or an expression. In Java Debug mode, you cannot see the data flow on each trace or inspect the values of each column for each row.
Trace Debug mode supports breakpoints based on input data condition, while Java Debug mode does not. Breakpoints are points where the execution of your job pauses and waits for your action. You can use breakpoints to inspect your data or debug your logic at specific points of your job execution. In Trace Debug mode, you can set breakpoints on traces based on a condition or an expression that involves input data columns. For example, you can set a breakpoint to pause your job when a customer name contains a certain string or when a product price exceeds a certain value. In Java Debug mode, you can only set breakpoints on lines of code based on a condition or an expression that involves variables or expressions.
The characteristics that do not distinguish Trace Debug from Java Debug are:
Both modes require a separate perspective. A perspective is a set of views and editors that are arranged in a specific way to support a specific task. In Talend Studio, you can switch between different perspectives, such as Integration, Debug, Profiling, etc. To use Trace Debug mode, you need to switch to the Debug perspective by clicking on the Open Perspective button and selecting Debug. To use Java Debug mode, you need to switch to the Java perspective by clicking on the Open Perspective button and selecting Java.
Neither mode requires Java development experience. Although Java Debug mode allows you to debug your job code in Java or Perl, you do not need to have Java development experience to use it. You can use the graphical interface of Talend Studio to design your job components and properties without writing any code. You can also use the Code view to see the generated code of your job in Java or Perl and modify it if needed. However, you do not need to write any code from scratch or understand all the details of the code to use Java Debug mode.Reference:Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Trace Debug mode - 7.3], [Java Debug mode - 7.3]
You want to use the value of a context variable you defined to configure a component, but you do not remember the exact name. You decide to use the auto-completion feature in Talend Studio Studio to get assistance.
Which keystrokes can you use to trigger auto-completion?
To trigger auto-completion in Talend Studio, you can use the keystrokes Ctrl + Space. This will display a list of possible suggestions based on what you have typed so far. For example, if you type context. and press Ctrl + Space, you will see a list of all the context variables you have defined. You can then select the one you want from the list or continue typing to narrow down the choices. Auto-completion can help you avoid typing errors and save time when configuring components or writing expressions.Reference:Talend Open Studio: Open-source ETL and Free Data Integration | Talend
Which Action on table operations are supported by a tMysqlOutput component?
Choose 3 answers
The tMysqlOutput component is used to write data into a MySQL database table. The Action on table parameter of this component allows you to specify what operation to perform on the table before loading data into it. The Action on table parameter supports the following operations:
Drop table if exists and create: This operation drops the table if it already exists in the database and creates a new one with the same name and structure as defined in the schema.
Create table: This operation creates a new table in the database with the name and structure as defined in the schema. If a table with the same name already exists, an error will be raised.
Create table if does not exist: This operation creates a new table in the database with the name and structure as defined in the schema only if there is no table with the same name already existing in the database. If a table with the same name already exists, no action will be taken.
The Action on table parameter does not support the following operations:
Replace: This is not an operation on the table, but on the data. The Replace parameter of the tMysqlOutput component allows you to specify whether to replace existing rows in the table with new rows based on a key attribute or to insert new rows only.
Drop table: This is not an operation on the table, but on the database. The Drop table parameter of the tMysqlConnection component allows you to specify whether to drop the table after closing the connection or not.Reference:Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [tMysqlOutput properties - 7.3], [tMysqlConnection properties - 7.3]
You need to calculate the total number of rows in an input file using a tMlelnputDelimited component.
Which code should you use in a tJava component to write a nb-line variable?
You need to use the following code in a tJava component to write a nb_line variable:
int nb_line = (Integer)globalMap.get(''tFileInputDelimited_1_NB_LINE'');
This code retrieves the value of the global variable tFileInputDelimited_1_NB_LINE, which stores the number of rows processed by the tFileInputDelimited component, and assigns it to an integer variable named nb_line. You can then use this variable to print or manipulate the number of rows in your Job. Note that you need to use globalMap.get, not globalMap.put, to access the value of a global variable.
Which statement is true about the Sync columns button on the Basic settings tab of the Component view? Choose 2 answers
The Sync columns button on the Basic settings tab of the Component view retrieves the schema from the input component connected in the Job and synchronizes it with the current component's schema. This button is available for most of the components that have an input and an output schema, such as tJavaRow, tMap, tFileOutputDelimited, etc. However, this button does not retrieve and synchronize the output file schema with the input file schema for tFileOutputDelimited, as this component only has one output schema.
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