Talend-Core-Developer日本語練習問題 & Talend-Core-Developer資格トレーリング

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>> Talend-Core-Developer日本語練習問題 <<

素晴らしいTalend-Core-Developer日本語練習問題一回合格-有難いTalend-Core-Developer資格トレーリング

テスト用のTalend-Core-Developer認定を準備する際に、Talend-Core-Developer試験リファレンスのように高い効率と合格率を高めることができる学習教材はありません。 Talend-Core-Developer試験の練習問題では、最も信頼性の高い試験情報リソースと最も認定された専門家の検証を提供しています。テストバンクには、実際の試験に含まれる可能性のあるすべての質問と回答、および過去の試験問題の本質と要約が含まれています。最も簡単な言語を使用して、学習者にTalend-Core-Developer試験の参照を理解させ、Talend-Core-Developer試験に合格するよう努めています。

Talend Core Certified Developer Exam 認定 Talend-Core-Developer 試験問題 (Q13-Q18):

質問 # 13
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 thisprompt?

A. Confirm that you want to apply the schema changes to the selected component.
B. Confirm that you want to apply the schema changes to the next component in the Job.
C. Confirm that you want to apply the schema changes to the previous component in the Job.
D. Confirm that you want to apply the schema changes to both the previous and next components in the Job.

正解：B

解説：
When you modify the schema of a component in Talend Studio, the application prompts you to propagate these changes. This propagation ensures that any alterations to the data structure are consistently applied throughout the Job, maintaining data integrity and coherence.
Understanding Schema Propagation:
* Purpose:Schema propagation is essential to synchronize the data structure across connected components. When a schema changes (e.g., adding or removing a column), downstream components that rely on this schema need to be updated to reflect these changes.
* Prompt Significance:The prompt serves as a confirmation to apply the schema changes to the subsequent components in the Job. By agreeing to propagate, Talend Studio automatically updates the schemas of all downstream components connected to the modified component.
Example Scenario:
Consider a Job where a tFileInputDelimited component reads data and passes it to a tMap component, which then outputs to a tFileOutputDelimited component. If you add a new column to the schema of tFileInputDelimited:
* Modification:
* You add a new column, 'emailAddress', to the tFileInputDelimited schema.
* Propagation Prompt:
* Upon making this change, Talend Studio prompts you to propagate the schema changes.
* Effect of Propagation:
* By confirming, the 'emailAddress' column is added to the schemas of all downstream components (e.g., tMap and tFileOutputDelimited). This ensures that these components recognize and can process the new column appropriately.
By understanding and utilizing schema propagation, you ensure that all components within your Talend Jobs remain synchronized, reducing errors and enhancing data processing efficiency.

質問 # 14
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. Specify All for the Shell launcher option in the Build Job windows.
B. Build one package for each platform.
C. Select Build Job because Jobs are runnable on all platforms
D. Configure the Job properties building the Job.

正解：A

解説：
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]

質問 # 15
You have two branches: Branch1 contains Job1, and Branch 2 contains Job 2. You want to copy Job1 to Branch 2 and preserve the change history when connecting Studio to Talend Administrator Center.
Which method should you use to preserve the change history?

A. Switch to branch 1, copy the Branch 1 Job, switch to Branch 2, and paste the Job into Branch 2.
B. Switch to Branch 1, right-click Job 1, select Copy to branch, and select Branch 2.
C. Switch to Branch 1, copy the Branch 1 job, switch to Branch 2, and paste the job into Branch 2.
D. Switch to Branch 1, copy lob 1, switch to Branch 2, and paste Job 1 over Job 2.

正解：B

解説：
To copy Job1 from Branch1 to Branch2 and preserve the change history when connecting Studio to Talend Administration Center, you need to use the Copy to branch option. This option allows you to copy a job or a folder from one branch to another branch in the same project without losing the version history. You can access this option by switching to Branch1, right-clicking on Job1 in the Repository tree view, and selecting Copy to branch. This will open a dialog box where you can select Branch2 as the target branch and confirm the copy operation.
You do not need to use the import items, create standard job, or paste over options. These options are not used to copy jobs between branches and preserve the change history. 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 paste over option is used to overwrite an existing job with another job that has been copied or cut from the same or another project. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Copy to branch - 7.3]

質問 # 16
Which component can be used to read a CSV file in an ESB Route?

A. cFileInputDelimited
B. tMap
C. tFileInputDelimited
D. cFile
E. cMap

正解：A

解説：
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.

質問 # 17
Which aspects contribute to the calculation of the validity of a dataset? Choose 2 answers.

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

正解：B、D

解説：
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.

質問 # 18
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