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Snowflake DAA-C01 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Data Analysis30%-32%- Perform advanced analytics using SQL
  • 1. Snowflake-specific analytical features
  • 2. Aggregate functions
  • 3. Time-series analysis
Topic 2: Data Transformation and Data Modeling22%-30%- Design data models
  • 1. Star schema design
  • 2. Data vault models
  • 3. Snowflake schema design
- Transform data using SQL
  • 1. QUALIFY clauses
  • 2. PIVOT/UNPIVOT operations
  • 3. Window functions
  • 4. Common Table Expressions (CTEs)
Topic 3: Data Ingestion and Data Preparation15%-20%- Use best practice considerations relating to data integrity structures
  • 1. Define primary keys for tables
  • 2. Implement constraints
  • 3. Perform table joins between parent/child tables
- Implement data processing solutions
  • 1. Use logging and monitoring solutions (auditing, data lineage)
  • 2. Automate and implement data pipelines (scheduling)
  • 3. Cleanse, conform, and enrich data
  • 4. Respond to processing failures
- Enrich data by identifying and accessing relevant data from the Snowflake Marketplace
  • 1. Use Secure Data Sharing (Marketplace, Internal Marketplace, Private Listings, Listings)
  • 2. Create tables and views
  • 3. Find external data sets that correlate with available data
- Use a collection system to retrieve data
  • 1. Retrieve data from unstructured sources
  • 2. Retrieve data from structured sources (CSV)
  • 3. Retrieve data from semi-structured sources (Parquet, Avro, ORC, JSON, XML)
  • 4. Synthetic Data Generation
- Perform data discovery to identify what is needed from available datasets
  • 1. Identify elements required for business goals using BI reports or SQL analysis
  • 2. Evaluate required transformations (table joins, set operations, ASOF JOINS)
  • 3. Use commands to read metadata or alter context (DESCRIBE, SHOW, USE)
  • 4. Query tables to assess data elements and statistics maintained by Snowflake
  • 5. Determine the level of data granularity required
- Prepare data and load into Snowflake
  • 1. Load files using Snowsight
  • 2. Load data from external/internal stages into a table
Topic 4: Data Presentation and Data Visualization28%-29%- Create dashboards
  • 1. Present analytical results
  • 2. Snowsight dashboards
- Integrate with BI tools
  • 1. Power BI integration
  • 2. Other partner visualization tools
  • 3. Tableau integration

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Snowflake SnowPro Advanced: Data Analyst Certification Exam Sample Questions (Q35-Q40):

NEW QUESTION # 35
You are tasked with identifying potential data sources for a new marketing analytics dashboard. The dashboard needs to provide insights into customer behavior across various touchpoints. Which of the following would be the MOST appropriate data sources to consider?

Answer: A,B,E

Explanation:
Options A, B, and C are the most relevant data sources for a marketing analytics dashboard focused on customer behavior. Website clickstream data (A) provides insights into user interactions on the website. Social media activity data (B) offers insights into customer sentiment and engagement. Salesforce data (C) provides information about customer interactions and sales opportunities. HR employee data (D) and IoT sensor data (E) are less relevant to customer behavior and marketing analytics.


NEW QUESTION # 36
You are building a Snowsight dashboard that visualizes website traffic data'. The data includes a column 'visit_timestamp' (TIMESTAMP NTZ) and you need to display the number of unique visitors per hour for the last 24 hours. You also want to allow users to filter the data by country. You plan to use a chart to visualize the trend. Which of the following approaches are the MOST efficient and accurate for achieving this?

Answer: C,E

Explanation:
Option A is a good approach because 'DATE _ TRUNC is efficient for truncating timestamps, and applying the filter directly in the SQL query can optimize data retrieval. Option D is also very efficient, as it pre-aggregates the data, which improves dashboard performance. Option B is less efficient because the 'HOUR' function only returns the hour value without the date, making it harder to filter for last 24 hours. Also, dashboard-level filters can sometimes be less performant than SQL-level filters for large datasets. Option C introduces a calculated field, which is generally less efficient than performing the transformation directly in SQL. Option E is technically correct, it only applies to TEXT stored visit timestamp. Thus, pre-aggregation and 'DATE_TRUNC' are superior.


NEW QUESTION # 37
A data analyst is tasked with loading data into a Snowflake table 'ORDERS' with the following structure: 'CREATE TABLE ORDERS ( ORDER ID INT, CUSTOMER ID INT, ORDER DATE DATE, TOTAL_AMOUNT The data analyst needs to ensure that 'ORDER ID' is unique and not null, 'CUSTOMER ID' references a valid customer in the 'CUSTOMERS' table (column name 'CUSTOMER ID'), and 'ORDER DATE' is not in the future. Which of the following combination of constraints is the most efficient and appropriate way to enforce these Fules in Snowflake? 'CREATE TABLE CUSTOMERS ( CUSTOMER ID INT PRIMARY KEY, CUSTOMER_NAME VARCHAR(255));'.

Answer: A

Explanation:
Option E is the most appropriate and efficient. Using a PRIMARY KEY implies an index which while beneficial for joins isn't necessary if simple uniqueness and not null are the primary requirement. A CHECK constraint 'ORDER_DATE <= is the best way to prevent future dates as TRIGGER is not available and view doesn't prevent data from being ingested.


NEW QUESTION # 38
You're working with a 'WEB EVENTS' table in Snowflake that stores user activity data'. The table includes columns like 'USER ID' , 'EVENT TIMESTAMP', 'EVENT TYPE (e.g., 'page_view', 'button_click', 'form_submission'), and 'EVENT DETAILS' (a VARIANT column containing JSON data specific to each event type). You need to identify users who submitted a specific form ('contact_us') more than 3 times within a 24-hour period. However, you are concerned about data quality, and the 'EVENT TIMESTAMP' column might contain duplicate entries for the same user and event. Which of the following SQL queries is the MOST robust and efficient way to achieve this in Snowflake, ensuring that duplicate timestamps for the same user and 'contact_us' form submission are not counted multiple times?

Answer: B

Explanation:
Option B is the most robust and efficient for handling potential duplicate timestamps. Here's why: Inner Query & QUALIFY: The inner query filters for the specific event type ('form_submission') and form ID ('contact_us'). The 'QUALIFY' clause, along with OVER (PARTITION BY USER ID, EVENT TIMESTAMP ORDER BY EVENT TIMESTAMP) = 1', efficiently de-duplicates the data. It assigns a row number to each combination of USER_ID and 'EVENT_TIMESTAMP' , and only keeps the first occurrence (ROW_NUMBER = 1), thus removing duplicate timestamp entries for the same user. Outer Query & Aggregation: The outer query then groups the de-duplicated data by 'USER_ID' and uses 'HAVING COUNT( ) > to identify users who have more than 3 distinct form submissions. Here's why the other options are less suitable: A: This option doesn't handle duplicate timestamps. It will count each duplicate timestamp as a separate form submission, leading to inaccurate results. C: Option C has similar function as option B, however it's slightly less elegant using 'WHERE rn = 1 ' than using Snowflake's Qualify command D: This Option aggregates to just Date Level and thus doesn't provide a robust solution within a 24 hour Period. E: Option E uses a 'COUNT( ) OVER clause that doesn't provide de-duplication of the underlying data, thus a duplicate Event timestamp would be counted twice.


NEW QUESTION # 39
A retail company is using Snowflake to store their daily sales data'. They want to predict sales for the next week, accounting for weekly seasonality and a promotional campaign running on specific days. The sales data is in a table called 'SALES DATA' with columns 'SALE DATE' (DATE) and 'SALES AMOUNT' (NUMBER). Which of the following SQL statements is the MOST efficient and accurate way to achieve this using Snowflake's forecasting features, assuming a confidence interval of 95%?

Answer: A

Explanation:
Option E is the most correct. Option A uses 'timeLimit' in generator which needs additional conditions to be satisfied. Option E utilizes 'TIMESTAMP_INPUT = TRUE to correctly interpret the 'SALE_DATE column. It accurately specifies the forecast horizon (7 days) and confidence interval (0.95), and generates the future dates for forecasting using 'TABLE(GENERATOR(rowcount => 7))' to ensure the generation of 7 days for forecasting. Option D has OVER (ORDER BY NULL)' which is generally less performant than seq4().


NEW QUESTION # 40
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