Question 6 of 181
Which of the following code blocks will remove the rows where the value in column age is greater than 25 from the existing Delta table my_table and save the updated table?
    Correct Answer: C

    To remove rows from an existing Delta table where the value in a specific column meets a condition, you need to use the DELETE statement. In this case, using 'DELETE FROM my_table WHERE age > 25;' will delete all rows where the age is greater than 25, thereby updating the table with only the rows where the age value is 25 or less.

Question 7 of 181
Which tool is used by Auto Loader to process data incrementally?
    Correct Answer: B

Question 8 of 181
Which of the following commands will return the number of null values in the member_id column?
    Correct Answer: C

Question 9 of 181
Which of the following data lakehouse features results in improved data quality over a traditional data lake?
    Correct Answer: B

    A data lakehouse supports ACID-compliant transactions. ACID stands for Atomicity, Consistency, Isolation, and Durability, which are crucial properties for maintaining data integrity and consistency. These properties ensure that data operations are processed reliably and completely, even in the face of concurrent transactions or failures. This level of transactional reliability and consistency helps to improve data quality significantly over a traditional data lake, which often lacks such guarantees.

Question 10 of 181
A data engineer wants to create a relational object by pulling data from two tables. The relational object does not need to be used by other data engineers in other sessions. In order to save on storage costs, the data engineer wants to avoid copying and storing physical data.

Which of the following relational objects should the data engineer create?
    Correct Answer: D