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Snowflake SnowPro Advanced: Data Analyst Certification Sample Questions:

1. Table TB_A with column COL_B contains an ARRAY. Which statement will select the last element of the ARRAY?

A) SELECT COL_B[-1] FROM TB_A;
B) SELECT GET(COL_B, ARRAY_SIZE(COL_B)-1) FROM TB_A;
C) SELECT LAST_VALUE(COL_B) FROM TB_A;
D) SELECT COL_B[ARRAY_SIZE(COL_B)] FROM TB_A;

2. A Data Analyst executes a query in a Snowflake worksheet that returns the total number of daily sales, and the total amount for each sale. How can the Analyst check the distribution of the total amount, without running the query again?

A) Call the WIDTH_BUCKET function.
B) Go to Chart and select a histogram that includes the two variables.
C) Click on the column header in the results and review the histogram.
D) Go to Chart and select a bar chart that contains the two variables.

3. Why would a Data Analyst use a dimensional model rather than a single flat table to meet BI requirements for a virtual warehouse? (Select TWO).

A) Combining facts and dimensions in a single flat table limits the scalability and flexibility.
B) Dimensional modelling will save on storage space since it is denormalized.
C) Dimensions and facts allow power users to run ad-hoc analyses.
D) Dimensional modelling will improve query performance over a single table.
E) Snowflake generally performs better with dimensional modelling.

4. A Data Analyst needs to write a query that will return all projects from a project table and all employees from an employee table. What type of join should be used in this query?

A) Left outer join
B) Cross join
C) Inner join
D) Full outer join

5. Which aggregate functions can be used to provide values for a given bucket in Snowsight charts? (Select THREE).

A) Standard Deviation
B) HLL
C) Max
D) Average
E) Any Value
F) Mode

Solutions: