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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Debugging and Error Resolution | 15% | - Resolving data quality issues - Debugging techniques - Identifying modeling errors |
| Topic 2: Implementing dbt Tests | 10% | - Test configuration and execution - Built-in tests - Custom tests |
| Topic 3: External Dependencies | 10% | - Managing snapshots - External sources integration - Using packages |
| Topic 4: Leveraging dbt State | 5% | - State-aware operations - State management |
| Topic 5: dbt Models Governance | 15% | - Project organization and structure - Naming conventions and standards - Version control integration |
| Topic 6: Developing dbt Models | 20% | - Model optimization
|
| Topic 7: Creating and Maintaining Documentation | 10% | - Documentation standards - Descriptions and metadata - Generating documentation |
| Topic 8: Managing Data Pipelines | 15% | - CI/CD integration - Pipeline orchestration - Deployment strategies |
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NEW QUESTION # 152
You need to grant readonly access to a new stakeholder on a specific dbt model's output. What factors should influence your approach?
Answer: A,C,D
Explanation:
Each of these shapes the specific implementation-A impacts how you'll write the GRANT. B is about a layer of control. C is about ad-hoc vs. integrated security.
NEW QUESTION # 153
A model fails with an error similar to:Numeric overflow converting to data type numeric(18,2)
Answer: A
Explanation:
This error indicates data type limitations, causing computed values to fall outside the allowed range.
NEW QUESTION # 154
You have just executed dbt run on this model:
select * from {{ source("{{ env_var('input') }}", 'table_name') }}
and received this error:
Compilation Error in model my_model
expected token ':', got '}'
line 14
{{ source({{ env_var('input') }}, 'table_name') }}
How can you debug this?
Answer: C
Explanation:
This error is caused by invalid Jinja syntax, specifically by nesting {{ }} blocks inside another Jinja expression. The expression:
{{ source("{{ env_var('input') }}", 'table_name') }}
compiles to:
{{ source({{ env_var('input') }}, 'table_name') }}
Here, Jinja sees {{ inside another {{ ... }} block. Jinja does not allow nested print statements like this; instead, functions should be called directly inside a single pair of curly braces. The parser encounters an unexpected } where it expects part of a valid expression (hence "expected token ':', got '}'"), which is a classic symptom of mismatched or nested curly braces.
The correct usage is:
select * from {{ source(env_var('input'), 'table_name') }}
In this form, env_var('input') is evaluated first, and its result is passed as the first argument to source() within one Jinja expression.
Option C is therefore the correct debugging approach: inspect your Jinja and look for incorrectly nested curly brackets. Options A and D are generic and don't address the root cause, while B talks about quoting in SQL, which is not the problem-the error arises before SQL compilation, at Jinja parse time.
NEW QUESTION # 155
A developer has updated multiple models in their dbt project, materialized as tables and views.
They want to run and test all models upstream and downstream from the modified models that are materialized as views.
What command will achieve this? Choose 1 option.
Answer: E
Explanation:
The requirement is:
* Select all models that have been modified # this uses the state selector:state:modified
* But only those modified models that are materialized as views # this uses the config selector:config.
materialized:view
* Then include upstream and downstream dependencies of those models # this requires adding + around the selectors.
To combine both selectors, dbt uses a comma-separated list within --select, meaning both selectors must match simultaneously.
The correct syntax is:
dbt build --select +state:modified, +config.materialized:view+
This command:
* Finds models whose state is modified.
* Filters them to only those materialized as views.
* Includes upstream (+) and downstream (+) dependencies.
* Runs and tests the selected nodes because dbt build includes running models, tests, seeds, and snapshots.
Why the other options are wrong:
* A and C use invalid selector syntax (config.materialized:view+ must be prefixed with +).
* B only selects modified models but does not filter by materialization type.
* D uses materialized:view, which is invalid without the config. prefix.
Thus, only Option E satisfies all conditions and uses correct dbt selector syntax.
NEW QUESTION # 156
When integrating a new data source, you notice many existing models could benefit from it. What's the most maintainable way to incorporate the new data within a DRY approach?
Answer: D
Explanation:
A base model serves as a modular point of integration for the new data. The ref() function promotes DRY principles and eases maintenance if the new source structure changes.
NEW QUESTION # 157
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