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dbt Labs dbt-Analytics-Engineering Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: dbt Fundamentals	15%	- dbt Core vs dbt Cloud - dbt workflow and best practices - dbt project structure
Topic 2: Models	25%	- Seeds - Materializations (table, view, ephemeral, incremental) - Sources and references - Snapshots - Writing and managing SQL models
Topic 3: Data Transformation Techniques	25%	- Refactoring and incremental models - Macros and packages - Jinja templating - Common table expressions and subqueries
Topic 4: Testing and Documentation	20%	- Schema tests (unique, not_null, accepted_values, relationships) - Documentation generation - dbt docs and DAG visualization - Custom data tests
Topic 5: Deployment and Orchestration	15%	- Environments (dev, staging, prod) - Git version control integration - CI/CD with dbt Cloud - Jobs and scheduling in dbt Cloud

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dbt-Analytics-Engineering試験解答 & dbt-Analytics-Engineering認定試験

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dbt Labs dbt Analytics Engineering Certification Exam 認定 dbt-Analytics-Engineering 試験問題 (Q221-Q226):

質問 # 221
You've created a complex lineage macro, and you want to include unit tests for the macro logic itself. How might you approach this?

A. Write a Jinja script that programmatically tests various input/output scenarios of your macro.
B. Currently, there is no standard way to directly unit test macros within a dbt project
C. Utilize dbt's built-in macro testing framework.
D. Include test cases for the macro within your model-level schema.yml files.

正解：A

解説：
While dbt doesn't have a dedicated macro testing framework, Jinja provides ways to construct tests. However, there's no built-in mechanism to run these as part of your typical dbt workflow.

質問 # 222
(Multiple Select)

A. Avoiding excessive use of UNION operations, especially within loops.
B. Leveraging appropriate indexes on columns used in joins and WHERE clauses.
C. Using SELECT * whenever possible to avoid explicitly specifying needed columns.
D. Preferring correlated subqueries over joins when relationships are one-to-one.

正解：A、B

解説：
UNION operations can be expensive. Indexing is essential for query optimization. SELECT * and correlated subqueries are generally less performant.

質問 # 223
You need a materialization that automatically adapts to upstream schema changes while still preserving query performance. Which dbt materialization offers this kind of flexibility?

A. Ephemeral
B. View
C. Snapshot
D. Incremental

正解：B

解説：
Views are dynamically built at query time, inheriting their schema from the underlying sources, thus providing built-in adaptation.

質問 # 224
You discover a vulnerability in a third-party lineage-enhancing dbt package you use. Where might you first look for information and potential fixes?

A. Only the authors of the dbt package would be able to address the vulnerability.
B. Centralized dbt documentation or a discussion forum.
C. The GitHub repository or documentation of the dbt package.
D. Directly in the manifest.json or packages.yml files within your project

正解：C

解説：
The package maintainer is the primary source for updates and vulnerability fixes. However, other resources like A & C might provide additional information or community solutions.

質問 # 225
Which two configuration items can be defined under models: in your dbt_project.yml file?
Choose 2 options.

A. target
B. schema
C. test
D. tags
E. source

正解：B、D

解説：
The correct answers are A: schema and C: tags.
In dbt, the dbt_project.yml file is the central configuration file that defines model-level settings. Under the models: section, you can specify a wide range of model configurations such as schema, materialized, tags, alias, and custom meta fields. The schema configuration allows you to control which database schema a model should be built in, giving analytics engineers the flexibility to organize models by domain or environment. The tags configuration is also valid under models: and is widely used to group models logically for selection, documentation, or orchestration workflows.
Option B (source) is incorrect because sources are defined under YAML files in the sources: section, not under models: in dbt_project.yml. Option D (test) is incorrect because tests must be defined in model or source YAML files, not inside the project configuration. Option E (target) is not a configuration that applies to models; rather, it refers to dbt runtime environments and cannot be configured under the models: block.
dbt's project configuration system ensures that model-level behavior is managed centrally and consistently, and schema and tags are two of the officially supported configuration keys under models:.

質問 # 226
......

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