Snowflake Exam DSA-C02 Topic 3 Question 32 Discussion

Actual exam question for Snowflake's DSA-C02 exam

Question #: 32
Topic #: 3

Consider a data frame df with columns ['A', 'B', 'C', 'D'] and rows ['r1', 'r2', 'r3']. What does the ex-pression df[lambda x : x.index.str.endswith('3')] do?

AReturns the row name r3

BResults in Error

CReturns the third column

DFilters the row labelled r3

Show Suggested Answer

Suggested Answer: D

It will Filters the row labelled r3.

by Annette at Sep 18, 2024, 06:56 AM

Limited Time Offer

25%

Off

Get Premium DSA-C02 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Estrella

8 days ago

Easy peasy! The lambda function is looking for rows where the index ends with '3', so the answer has to be D. Though I do wonder if the data frame has a sense of humor and will throw an error just to mess with us.

upvoted 0 times

...

Avery

9 days ago

Haha, the lambda function is like a secret code that only data scientists can crack! I'm going to go with D, because filtering rows seems like the most logical choice here.

upvoted 0 times

...

Gertude

13 days ago

Hmm, I'm not so sure about this one. It could be C, since the lambda function might be selecting the third column. But I'm leaning towards D, just to be safe.

upvoted 0 times

Leonie

8 days ago

User1: I think it might be C, selecting the third column.

upvoted 0 times

...

Matthew

8 days ago

User2: I'm not sure, I think it could be D, filtering the row labelled r3.

upvoted 0 times

...

1 months ago

What does df[lambda x : x.index.str.endswith('3')] do?

upvoted 0 times

...