Data-Integration-Developer Dumps 2024 - New Talend Data-Integration-Developer Exam Questions
Free Data-Integration-Developer Braindumps Download Updated on May 15, 2024 with 57 Questions
NEW QUESTION # 25
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 this prompt?
- A. Confirm that you want to apply the schema changes to both the previous and next components 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 next component in the Job.
- D. Confirm Out you want to apply the schema, changes to the previous component in the Job.
Answer: C
Explanation:
Explanation
In some instances, after applying changes to a component schema, you are asked if you would like to propagate the changes. This prompt is significant because it allows you to confirm that you want to apply the schema changes to the next component in the Job. This can save you time and effort by automatically updating the schema of the downstream component, instead of manually editing it. However, you should be careful when propagating changes, as it may overwrite existing schemas or cause errors in the Job logic. You can also choose to cancel the propagation and edit the schema manually.
NEW QUESTION # 26
Which exceptions car be caught using tLogCatcher?
Choose 3 answers
- A. tDie
- B. Java Exception
- C. tAssertCatcher
- D. tWarn
- E. OnbubjobError Exception
Answer: A,B,D
Explanation:
Explanation
The tLogCatcher component can catch exceptions from three types of components: tWarn, tDie, and Java Exception. The tWarn component is used to trigger a warning message that can be caught by the tLogCatcher component for an exhaustive log. The tDie component is used to stop the execution of a job or a subjob and return an error code that can be caught by the tLogCatcher component for an exhaustive log. The Java Exception component is used to handle any Java exception that occurs during the execution of a job or a subjob and pass it to the tLogCatcher component for an exhaustive log. The tLogCatcher component cannot catch exceptions from other types of components, such as OnSubjobError Exception or tAssertCatcher. The OnSubjobError Exception is a trigger that is activated when an error occurs in a subjob and can be used to perform some actions after the error, such as sending an email or logging a message. The tAssertCatcher component is a component that collects the assert data generated by the tAssert component and passes it on to the output defined. The tAssert component is used to verify if a condition is true or false and generate an assert data accordingly. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend,
[tLogCatcher properties - 7.3], [tWarn properties - 7.3], [tDie properties - 7.3], [Java Exception properties -
7.3], [OnSubjobError properties - 7.3], [tAssertCatcher properties - 7.3], [tAssert properties - 7.3]
NEW QUESTION # 27
In Talend Studio, you have access to a references project named project_ref. You need to reuse a Job named testJob from the project_ref in your main Job.
- A. Right-click Job Designs, click Crete Standard Job, and enter testJob as the Job name.
- B. Right-click Job Designs and click import items.
- C. Navigate to Metadata, @ project ref, Job Designs, Standard, then select testJob.
- D. Navigate to @ Referenced project, @ project_ref, Job Designs, Standard, then select testJob.
Answer: D
Explanation:
Explanation
To reuse a job named testJob from a referenced project named project_ref in your main job, you need to navigate to @Referenced project, @project_ref, Job Designs, Standard, then select testJob. A referenced project is a project that can be accessed from another project in read-only mode. You can add a referenced project to your main project by using the Project Settings window in Talend Studio. You can then browse the items (such as jobs, metadata, routines, etc.) of the referenced project in the Repository tree view under the
@Referenced project node. You can drag and drop any item from the referenced project to your main job design workspace.
You do not need to use import items, create standard job, or navigate to Metadata options. These options are not used to reuse jobs from referenced projects. The import items option is used to import items (such as jobs, metadata, routines, etc.) from an archive file that can be exported from another project or workspace. The create standard job option is used to create a new job with a name and a description. The Metadata node in the Repository tree view is used to store and manage metadata definitions for various data sources (such as databases, files, web services, etc.). References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Referenced projects - 7.3]
NEW QUESTION # 28
Which options can you use to add a Joblet to your talend Job?
Choose 3 answers
- A. Use a tRunJob component and select the Joblet from the drop-down menu.
- B. Drag theJobket from the Repository tree view to designer canvas.
- C. Drag the Joblet from Palette to the design workspace.
- D. Right-click the Joblet from Palette and select the Add option.
- E. Type the Joblet name on the Studio canvas, then select if from the Palette drop-down menu.
Answer: B,C,E
Explanation:
Explanation
To add a Joblet to your Talend Job, you can use one of these options:
Type the Joblet name on the Studio canvas, then select it from the Palette drop-down menu. This will create a Joblet container on your canvas that contains all the components and links of your Joblet.
Drag the Joblet from Repository tree view to designer canvas. This will also create a Joblet container on your canvas that contains all components and links of your Joblet.
Drag Joblet from Palette to design workspace. This will open a dialog box where you can select an existing Joblet from Repository or create a new one.
You cannot use a tRunJob component and select Joblet from drop-down menu, nor right-click Joblet from Palette and select Add option. These methods are not available in Talend Studio and may cause errors or unexpected results. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend,
[Joblets - 7.3]
NEW QUESTION # 29
Which statements are true about Use or register ashared DB Connection option in Talend Studio?
Choose 3 answers
- A. Compatible tobesnared between parent and childJobs
- B. Compatible with the Use an independent process to run subJob option of tKunJob component
- C. Compatiblewith The Use dynamicjob option of TRunJob component
- D. Incompatible with the Use dynamic job option of tRunJob component
- E. Incompatible with the Use an independent process to run subJob option of tRunJob component
Answer: A,D,E
Explanation:
Explanation
The Use or register a shared DB Connection option in Talend Studio is an option that allows you to share a single database connection between multiple components in a job or between parent and child jobs. This option can improve the performance and efficiency of your job by avoiding opening and closing multiple connections to the same database. The Use or register a shared DB Connection option is compatible with the following scenarios:
Sharing a connection between parent and child jobs. You can use this option to pass a database connection from a parent job to a child job that is called by a tRunJob component. This way, you do not need to create a new connection in the child job, but reuse the existing one from the parent job.
Sharing a connection between components in the same subjob. You can use this option to register a database connection in one component (such as tMysqlConnection) and use it in other components (such as tMysqlInput or tMysqlOutput) in the same subjob. This way, you do not need to configure each component with the same connection properties, but use a shared one.
The Use or register a shared DB Connection option is incompatible with the following scenarios:
Using an independent process to run subjob option of tRunJob component. This option allows you to run a child job in a separate JVM process from the parent job. This option is not compatible with sharing a database connection, because each JVM process has its own memory space and cannot access the objects of another process.
Using dynamic job option of tRunJob component. This option allows you to call a child job dynamically based on a context variable that contains the name of the child job. This option is not compatible with sharing a database connection, because dynamic jobs are loaded at runtime and cannot access the metadata of other jobs. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Use or register a shared DB Connection - 7.3], [tRunJob properties - 7.3]
NEW QUESTION # 30
You have a Job that uses a tFileInputDelimited component to extract data from an input file. You built a spate subjob, called W, to handle the condition when the input file is empty.
Which condition syntax is correct for the Run if connection?
- A. ((Integer)globalMap.get(''tFieldInputDelimited_1NB_LINES''))===0
- B. ((Integer)globalMap.get(''tFieldInputDelimited_1NB_LINES''))=0
- C. ((Integer)globalMap.get(''tFieldInputDelimited_1NB_LINES''))--0
- D. ((Integer)globalMap.get(''tFieldInputDelimited_1NB_LINES''))-0
Answer: D
Explanation:
Explanation
To reference the value of a context variable you defined, you can use the syntax context.variable_name, where variable_name is the name of the context variable. For example, if you have a context variable named path, you can reference its value by using context.path. You do not need to specify the context name (such as test or prod) or use parentheses or brackets around the variable name. References: Talend Data Integration - Software to Connect, Access, and Transform Data | Talend, [Contexts - 7.3]
NEW QUESTION # 31
How are contexts defined?
- A. In addition to a default context, Talend Studio defines a list of standard contexts you can use in your Ions.
- B. You must define the contexts
- C. They are automatically defined by the types of components used in the Job.
- D. Talend Studio defines a default context, and you can define more as needed.
Answer: B
Explanation:
Explanation
Contexts are a way of defining different sets of values for variables that are used in a job. For example, you can define a context for testing and another context for production, with different values for the database connection parameters, file paths, etc. You can then switch between the contexts easily without modifying the job design. Contexts are not automatically defined by the types of components used in the job, nor by Talend Studio. You must define the contexts yourself in the Contexts tab of your job. You can also create context groups in the Repository and reuse them in multiple jobs. References: Talend Data Integration - Software to Connect, Access, and Transform Data | Talend,
NEW QUESTION # 32
You are building a Job that consists of two subJobs being sequentially executedI he first subJob completes successfully.
Which component in the first subJob triggers the execution of the second subJob?
- A. Input component
- B. Any component
- C. Final component
- D. Start component
Answer: D
Explanation:
Explanation
The Start component in a subjob triggers the execution of the next subjob in a sequential order. The Start component is used to define where a subjob begins and to link it with other subjobs within a job. The Start component has only one output link that can be connected to any other component in the same subjob or to another Start component in another subjob. When a subjob completes successfully, it sends an OnSubjobOk trigger to its Start component, which then activates the next subjob linked to it. The Final component, on the other hand, is used to define where a subjob ends and to perform some actions after its completion, such as sending anemail or logging a message. The Final component has no output link and does not trigger any other subjob. The Input component and any other component in a subjob do not trigger any other subjob by themselves, unless they are connected to a Start component through an output link or an OnComponentOk trigger. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Start properties - 7.3], [Final properties - 7.3]
NEW QUESTION # 33
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?
- A. Alt - Space
- B. Ctrl + Space
- C. Ctrl + Alt + Space
- D. Fsc + Space
Answer: B
Explanation:
Explanation
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. References: Talend Open Studio:
Open-source ETL and Free Data Integration | Talend
NEW QUESTION # 34
Which method allows you to execute the compiled Job Talend Studio?
- A. Right-click the Job in the Repository and select Build Job
- B. Right-click the Job in the Repository and select Export items.
- C. Click the Export button in the Edit Properties window.
- D. Select Save As on the main File menu
Answer: A
Explanation:
Explanation
To execute the compiled job outside Talend Studio, you need to right-click on the job in the Repository tree view and select Build Job option. This option allows you to export your job as an executable file that can be run independently from Talend Studio on any platform that supports Java. 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 do not need to click the Export button in the Edit Properties window, right-click on the job in the Repository and select Export items, or select Save As on the main File menu. These options are not used to execute the compiled job outside Talend Studio. The Export button in the Edit Properties window is used to export your job properties as an XML file. The Export items option is used to export your items (such as jobs, metadata, routines, etc.) as an archive file that can be imported into another project or workspace. The Save As option is used to save a copy of your job with a different name or location. References: Talend Open Studio:
Open-source ETL and Free Data Integration | Talend, [Build Job - 7.3]
NEW QUESTION # 35
Which parameters are defined in File Delimited metadata?
Choose? answers
- A. Position of the fields
- B. Component with which the metadata is associated
- C. File Path
- D. ROW Separator
Answer: C,D
Explanation:
Explanation
The parameters that are defined in File Delimited metadata are:
Row separator: This parameter defines the character or string that separates each row of data in a delimited file. For example, a row separator can be a newline character (\n), a carriage return (\r), or a combination of both (\r\n).
File path: This parameter defines the location and name of the delimited file that you want to read or write. You can browse your local system or enter a URL to specify the file path. You can also use context variables or global variables to make the file path dynamic.
NEW QUESTION # 36
Which factors can affect the context in which a Job is run?
Choose 2 answers
- A. tRunJob component can influence the context in which the child Job runs.
- B. tContextDump component ran change the context name in the course of the lob execution.
- C. tContextLoad component can change the context name in the course of the Job execution.
- D. Context chosen by the developer when running the Job. Context available in the Basic Run tab of Run Job section.
Answer: A,D
Explanation:
Explanation
The context in which a job is run can be affected by different factors, such as the context chosen by the developer when running the job, or the tRunJob component that can influence the context in which the child job runs. The context chosen by the developer when running the job can be selected from the Basic Run tab of Run Job section in Talend Studio. This allows the developer to test the job with different sets of context variables without modifying the job design. The tRunJob component can be used to call another job as a subjob within a parent job. The tRunJob component can pass the context parameters from the parent job to the child job, or use a specific context for the child job. This allows the developer to reuse existing jobs and control their execution contexts. The tContextLoad component and the tContextDump component do not affect the context name in which a job is run, but they can affect the context values. The tContextLoad component can load context parameters from a file or a database table at runtime and overwrite the existing values. The tContextDump component can display or save the current context parameters and their values for debugging purposes. References: Talend Data Integration - Software to Connect, Access, and Transform Data | Talend, [tRunJob properties - 7.3], [tContextLoad properties - 7.3], [tContextDump properties - 7.3]
NEW QUESTION # 37
What determines the name of the tMap output row that delivers join rejects?
- A. The name is determined by the input table, you create to generate the rejects.
- B. The name is predetermined; it is always named Innerjoin Reject.
- C. The name is configurable in the Component view of the tMapcomponent
- D. The name is determined by the output table you create to catch the rejects.
Answer: D
Explanation:
Explanation
The tMap component allows you to configure different types of joins between the main input and the lookup tables, such as inner join, left outer join, right outer join, etc. An inner join returns only the matching rows from both tables based on a join condition. If a row from the main input does not match any row from the lookup table, it is considered as an inner join reject. You can configure an output to collect these rejects by setting the Catch inner join reject option to true. The name of the output row that delivers the join rejects is determined by the output table you create to catch the rejects. You can name the output table as you wish, such as Rejects, Errors, etc. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend,
NEW QUESTION # 38
Which capabilities does Traces Debugprovide?
Choose 2 answers
- A. Filtering which data is propagated by a flow
- B. Advancing one row at a time
- C. Breaking on a selected line of code
- D. Breaking when an input column fulfills a condition
- E. Advancing one column at a time
Answer: B,D
Explanation:
Explanation
Trace Debug mode is a feature that allows you to trace each row processed by your job components and see the values of each column in each row. You can access this mode by opening the Debug Run tab of the Run view and clicking on Trace Debug button.
The capabilities that Trace Debug mode provides are:
Breaking when an input column fulfills a condition. 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. To set a breakpoint based on a condition, you need to right-click on a trace on your jobdesign workspace and select Show Breakpoint Setup option. This will open a dialog box where you can enter a condition or an expression for your breakpoint.
Advancing one row at a time. You can advance the execution of your job one row at a time by using the Step Over button in the toolbar of the Run view. This will allow you to see how each row is processed by your job components and how it affects the output data.
The capabilities that Trace Debug mode does not provide are:
Filtering which data is propagated by a flow. You cannot filter which data is propagated by a flow in Trace Debug mode. A flow is a link that shows 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. However, you cannot change which rows are propagated by a flow based on a condition or an expression.
Advancing one column at a time. You cannot advance the execution of your job one column at a time in Trace Debug mode. You can only advance the execution of your job one row at a time by using the Step Over button in the toolbar of the Run view. This will allow you to see how each row is processed by your job components and how it affects the output data. However, you cannot see how each column is processed by your job components and how it affects the output data.
Breaking on a selected line of code. You cannot break on a selected line of code in Trace Debug mode.
You can only break on a trace based on a condition or an expression that involves input data columns.
To break on a selected line of code, you need to use Java Debug mode. 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. You can access this mode by switching to the Java perspective and clicking on the Debug button in the toolbar of the Code view. References: Talend Open Studio: Open-source ETL and Free Data Integration
| Talend, [Trace Debug mode - 7.3], [Java Debug mode - 7.3]
NEW QUESTION # 39
In the tMap component, where do you set up a filter on the input fields?
- A. Expression filter in the output table
- B. Expression field for a single column of the output
- C. Match Model parameter field for one of the main inputs
- D. Match Model parameter field for fine of the inputs
Answer: A
Explanation:
Explanation
The tMap component allows you to set up a filter on the input fields by using the Expression filter in the output table. The Expression filter is a field where you can enter a logical expression that evaluates to true or false for each input row. For example, if you want to filter out the rows that have null values in a certain column, you can use row1.column != null as the expression filter for that output. The expression filter applies to all the input fields of the row, not just a single column. You cannot set up a filter on the input fields by using the Match Model parameter field for one of the inputs or outputs, as this field is used to define how to match rows between different inputs or outputs based on a key attribute. References: Talend Open Studio:
Open-source ETL and Free Data Integration | Talend
NEW QUESTION # 40
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 subJob
- D. Carrying data into a Joblet
Answer: D
Explanation:
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 # 41
You need to call a different Job within a Job you are developing.
Which mechanism allows you to pass the parameters to the lob you want to call?
- A. CommandLine options
- B. File
- C. Context parameters
- D. Java Function paramters
Answer: C
Explanation:
Explanation
To call a different job within a job you are developing, you can use the tRunJob component. This component allows you to execute another job as a subjob within a parent job. To pass the parameters to the job you want to call, you can use the context parameters. Context parameters are variables that can store values that can be changed at runtime or between different contexts. You can define context parameters in the Contexts tab of your job and assign them values for each context. You can also pass context parameters from the parent job to the child job by using the Context Param tab of the tRunJob component. This way, you can parameterize the properties or expressions of the child job with the values from the parent job.
You do not need to use a file, command line options, or Java function parameters to pass parameters to a different job. These methods are not supported by Talend Studio and may cause errors or unexpected results. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [tRunJob properties - 7.3], [Contexts - 7.3]
NEW QUESTION # 42
Which Action on table operations are supported by a tMysqlOutput component?
Choose 3 answers
- A. Create table
- B. Replace
- C. Drop table
- D. Create table if does not exists
- E. Drop table if exists andcreate
Answer: A,D,E
Explanation:
Explanation
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. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [tMysqlOutput properties - 7.3], [tMysqlConnection properties - 7.3]
NEW QUESTION # 43
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. Set the desired context as the default, then build the Job. Rebuild the Job if you need to run it in a different context.
- B. 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.
- C. Build the Job with the Context scripts option selected in the Build Job windows. You will be prompted for the context.
- D. 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.
Answer: B
Explanation:
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 # 44
Which statements are true about configuring the input sources of a tMap component?
Choose answers
- A. You can use the up and down arrows to interchange the order of the Lookup tables.
- B. Thy main input source is always placed on topand cannot be moved within the tMap component.
- C. The order in which the input sources appear on the map does not matter, provided the joins are configured correctly.
- D. The main input source will always be placed on top by default hut ran be dragged to any position.
Answer: A,B
Explanation:
Explanation
The tMap component allows you to configure multiple input sources for your data transformation and mapping. The main input source is always placed on top of the tMap component and cannot be moved within it. The main input source provides the data flow that drives the processing of the tMap component. The lookup tables are placed below the main input source and can be reordered by using the up and down arrows on the toolbar. The order in which the lookup tables appear on the tMap component does not affect the functionality of the joins, as long as they are configured correctly with the appropriate join conditions and expressions. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [tMap properties - 7.3]
NEW QUESTION # 45
A data professional would like to combine multiple data sources into a relational database to improve their business efficiency.
Which data integration initiative can help them achieve this?
- A. Use a middleware application that acts as a mediator to normalize data and bring it into a master data pool.
- B. leverage data lakes to manage complex and massive volumes of structured and unstructured data.
- C. Create a data warehouse to run queries, reports, and analyses to retrieve data in a consistent format.
- D. Manually collect the data from various source interfaces,thenclean and combine the data into one warehouse.
Answer: A
Explanation:
Explanation
A middleware application is a software that acts as a mediator between different data sources and data consumers. It can normalize data and bring it into a master data pool, which is a centralized repository of consistent and quality data. This can help a data professional to combine multiple data sources into a relational database to improve their business efficiency. A middleware application can also provide data integration services such as data transformation, validation, cleansing, and enrichment. References: What is Data Integration?, What is Middleware?
NEW QUESTION # 46
You are using the tMap component to configure a mapping.
What do the tables on the left side of the Map Editor window represent?
- A. Schemas of the output rows
- B. Schemas of the input rows
- C. Expression to apply to the output data
- D. Explosions to apply to the input data
Answer: B
Explanation:
Explanation
The tables on the left side of the Map Editor window represent the schemas of the input rows. The schemas define the structure and type of the data that is coming from the input components connected to the tMap component. You can drag and drop columns from the input tables to the output tables on the right side of the Map Editor window to create mappings and transformations.
NEW QUESTION # 47
......
Talend Data-Integration-Developer Exam Practice Test Questions: https://www.2pass4sure.com/Talend-Data-Integration/Data-Integration-Developer-actual-exam-braindumps.html