Free DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Web TestEngine Demo

Exit VCEDump DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Databricks Certified Associate Developer for Apache Spark

Q37 Single choice

A data engineer is working on the DataFrame:

(Referring to the table image: it has columnsId,Name,count, andtimestamp.

) Which code fragment should the engineer use to extract the unique values in theNamecolumn into an alphabetically ordered list?

A
df.select("Name").orderBy(df["Name"].asc())
B
df.select("Name").distinct().orderBy(df["Name"])
C
df.select("Name").distinct()
D
df.select("Name").distinct().orderBy(df["Name"].desc())

Previous Check answer

Question map37 / 82

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82

Current Correct Answered Incorrectly Reviewed 0 Remaining 82

Marked Questions0

No marked questions.

Answered Incorrectly0

No incorrect answers.

DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Web TestEngine demo