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What are the key capabilities of Talend Cloud Data Preparation that improve data quality and accessibility?
Choose 2 answers
Which component can be used to read a CSV file in an ESB Route?
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.
You need a list of all customers whose first name contains "Tom" and who are older than 18. Which processor should be used?
Comprehensive and Detailed Explanation:
To filter customer records based on first name containing 'Tom' and age greater than 18, the Filter processor is the correct choice.
Filter (Option C) -- Correct Answer:
The Filter processor allows users to set conditional rules to extract only the required data.
Users can specify conditions such as:
first_name CONTAINS 'Tom'
AND
age > 18
This ensures that only relevant records are included in the output.
Why not other options?
Option A (Join): Used to combine data from multiple datasets based on a key field, not for filtering.
Option B (Aggregate): Used for summarizing data, such as calculating counts, sums, or averages.
Option D (Data Sampling): Used to select a random subset of data, not for filtering based on conditions.
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.
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 on PAIR REMOTE ENGINE to 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.
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
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. Reference: 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]
