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Exam Certified Associate Developer for Apache Spark topic 1 question 137 discussion

Actual exam question from Databricks's Certified Associate Developer for Apache Spark
Question #: 137
Topic #: 1
[All Certified Associate Developer for Apache Spark Questions]

The code block shown below should return a new DataFrame where rows in DataFrame storesDF with missing values in every column have been dropped. Choose the response that correctly fills in the numbered blanks within the code block to complete this task.

Code block:

storesDF.__1__.2__(3__ = __4__)

  • A. 1. na
    2.drop
    3. how
    4."any"
  • B. 1. na
    2.drop
    3. subset
    4."all"
  • C. 1. na
    2.drop
    3.subset
    4. "any"
  • D. 1. na
    2.drop
    3. how
    4. "all"
  • E. 1. drop
    2. na
    3. how
    4. "all"
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by arull at Jan. 27, 2024, 11:44 a.m.

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mineoolee
4 months ago
Selected Answer: D
"every" is key
upvoted 1 times
...
Samir_91
4 months, 1 week ago
Selected Answer: D
in every column --->all any of columns --->any
upvoted 1 times
...
Samir_91
4 months, 1 week ago
in every column --->all any of columns --->any
upvoted 1 times
...
jtu363
4 months, 3 weeks ago
Selected Answer: A
storesDF.na.drop(how="any").show()
upvoted 1 times
...
Sowwy1
6 months, 1 week ago
D. 1. na 2.drop 3. how 4. "all"
upvoted 1 times
...
arull
8 months, 3 weeks ago
Isn't it option B ? Result_df = storesDF.na.drop(subset="all")
upvoted 2 times
...
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