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Talend Core Certified Developer Exam Sample Questions (Q27-Q32):

NEW QUESTION # 27
How many sample dataset records and rows can be displayed in Talend Cloud Data Preparation?

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

Answer: B

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 # 28
What is the default port for the REST Endpoint when using tRESTRequest in Talend Studio?

A. 0
B. 1
C. 2
D. 3

Answer: A

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 # 29
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 Property type to Repository and use a common DB connection metadata.
B. Set the Database field to Metadata.
C. Set the Property type to Built-in and set all the relevant properties manually.
D. Set the Property type to Repository and replace the credentials in each component.

Answer: C

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 # 30
Which locations allow you to view a dataset in Talend Cloud Data Preparation? Choose 3 answers.

A. Data preparation overview
B. Dataset sample
C. Dataset overview
D. Dataset properties
E. Dataset patterns

Answer: B,C,E

Explanation:
Comprehensive and Detailed Explanation:
In Talend Cloud Data Preparation, users can view and interact with datasets through various interfaces:
* Dataset overview (Option C):
* Provides a general summary of the dataset, including metadata, quality metrics, and other pertinent information.
* Dataset patterns (Option D):
* Displays recurring patterns within the dataset, helping users understand data distributions and identify anomalies.
* Dataset sample (Option E):
* Allows users to view a sample of the dataset's records, facilitating data exploration and preparation tasks.
Why not other options?
* Option A:"Data preparation overview" is not a standard feature or terminology within Talend Cloud Data Preparation.
* Option B:"Dataset properties" typically refers to metadata and configuration settings, not the data content itself.

NEW QUESTION # 31
You are building a Job to run outsode Talend Studio that must run on both Linux and Windows.
Which action should you take when building the Job?

A. Select Build Job because Jobs are runnable on all platforms
B. Specify All for the Shell launcher option in the Build Job windows.
C. Build one package for each platform.
D. Configure the Job properties building the Job.

Answer: B

Explanation:
To build a job to run outside Talend Studio that must run on both Linux and Windows, you need to select Build Job because jobs are runnable on all platforms. The Build Job 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 specify All for the Shell launcher option in the Build Job window, configure the job properties before building the job, or build one package for each platform. These methods are not necessary 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]

NEW QUESTION # 32
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