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Snowflake SPS-C01 Exam Syllabus Topics:

SectionObjectives
Topic 1: DataFrame Operations and Data Processing- Data transformation workflows
  • 1. Joins and window functions
    • 2. Filtering, selecting, and aggregations
      Topic 2: Data Engineering with Snowpark- Pipeline development
      • 1. Batch processing workflows
        • 2. Integration with Snowflake data pipelines
          Topic 3: Snowpark Fundamentals- Snowpark architecture and concepts
          • 1. Snowflake execution model overview
            • 2. Snowpark APIs and supported languages
              Topic 4: Testing, Debugging, and Deployment- Production readiness
              • 1. Deployment strategies
                • 2. Debugging Snowpark applications
                  Topic 5: User Defined Functions and Stored Procedures- Extending Snowpark with custom logic
                  • 1. Python UDFs
                    • 2. Stored procedures in Snowpark
                      Topic 6: Performance Optimization and Best Practices- Efficient Snowpark execution
                      • 1. Resource utilization tuning
                        • 2. Pushdown optimization concepts

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                          Snowflake Certified SnowPro Specialty - Snowpark 認定 SPS-C01 試験問題 (Q238-Q243):

                          質問 # 238
                          Given a Snowpark DataFrame 'employees_df with columns 'employee_id' , 'department' , and 'salary' , and a second Snowpark DataFrame 'departments_df with columns 'department_id' and which of the following Snowpark code snippets correctly performs a join to retrieve employee information along with their department name, filtering for employees with salaries greater than $60,000, and then orders the result by department name?

                          正解:C

                          解説:
                          Explanation:Option E first filters the 'employees_df for salaries greater than $60,000, then joins with 'departments_df using the appropriate join condition (employee.department = department.department_id), and finally orders the result by department name. Using instead of and instead of also acceptable syntax. It's more efficient to filter before joining, so E is better than D, and more importantly E and D work correctly. The other options will throw an error.


                          質問 # 239
                          You have created a Snowpark UDF that uses a custom Python module 'my_module.py', containing a function 'process data'. This module is not available through Anaconda'. You've packaged the module into a zip file named 'my module.zip'. What steps are necessary to deploy this UDF in Snowflake so that it can correctly use the 'my_module'?

                          正解:A

                          解説:
                          Option B is correct. You need to upload the zip file to an internal stage. The 'imports' argument during UDF creation tells Snowflake to unpack the zip and make the module available. Snowflake handles adding the necessary path to 'sys.path', so no manual modification is needed within the UDF. Specifying external stages is possible, but internal stages are preferred for security and performance. Option A is incomplete (doesn't specify how the import relates to the UDF), Option C is technically feasible with external stages but is less preferable. Option D is incorrect as it unnecessary to modify sys.path. Option E specifies 'packages' argument where you would normally include packages available through Anaconda.


                          質問 # 240
                          You have a Snowpark DataFrame with columns 'order_id', 'product_id', 'sale_date' (DATE), and 'sale_amount'. You need to perform the following transformations: 1. Filter out sales records before January 1, 2023.2. Group the data by 'product_id' and calculate the total 'sale_amount' for each product. 3. Create a new column 'average_sale_amount' by dividing the total 'sale_amount' by the number of distinct 'order_id' for each product. You must alias the aggregate function. Which of the following Snowpark code snippets correctly implements these transformations?

                          正解:E

                          解説:
                          Option E is the most appropriate and correct. It uses for explicit date conversion, ensures correct filtering, aggregates with aliases, and calculates the 'average_sale_amount' correctly using the aliased columns. Options A, B, C and D are all valid for Snowflake. Option B incorrectly passes the date string. 'as_' instead of 'alias' are not valid and will cause an issue.


                          質問 # 241
                          Consider a Snowpark DataFrame with columns 'DEPARTMENT, 'SALARY , and 'YEAR. You want to find the average salary for each department over all years and then filter the departments to only include those where the average salary is greater than 100000. Which of the following approaches is the MOST efficient and correct way to achieve this using Snowpark Python?

                          正解:A

                          解説:
                          Options A, B, C, and D are technically valid but use 'avg' or 'col' instead of the recommended 'sf.mean' and 'sf.cor for Snowpark. Option E, is most efficient as it leverages Snowpark's functions ('sf.mean' and 'sf.col') correctly and splits the operation in two steps for clarity and potential optimization. 'col' can be used, 'sf.col' is the recommended way.


                          質問 # 242
                          You are working with a Snowpark DataFrame named 'sales df' containing sales data including columns 'product id', 'sale date', and 'sale_amount'. You want to create a new DataFrame 'filtered df that only includes rows where the 'product id' is present in a list of approved product IDs and the 'sale_amount' is greater than the average sale amount. You have already calculated the average sale amount and stored it in a variable named 'avg_sale amount'. Which of the following code snippets correctly achieves this?

                          正解:A、B、C

                          解説:
                          Options B, C, and E are correct. Option B uses chained .filter() methods which is valid. Option C uses chained .where() methods which is functionally equivalent to filter. Option E correctly applies both conditions within the filter. Option A is incorrect because the '&' operator has different precedence compared to the bitwise & operator and can cause issues with Snowpark type checking; also, it does not have parentheses for the individual condition. Option D is incorrect because .contains() is typically for checking if a string contains a substring or if an array contains a specific value, not for checking if a value is in a list.


                          質問 # 243
                          ......

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