Exam Certified Data Engineer Professional topic 1 question 51 discussion

Actual exam question from Databricks's Certified Data Engineer Professional

Question #: 51
Topic #: 1

Where in the Spark UI can one diagnose a performance problem induced by not leveraging predicate push-down?

A. In the Executor’s log file, by grepping for "predicate push-down"
B. In the Stage’s Detail screen, in the Completed Stages table, by noting the size of data read from the Input column
C. In the Storage Detail screen, by noting which RDDs are not stored on disk
D. In the Delta Lake transaction log. by noting the column statistics
E. In the Query Detail screen, by interpreting the Physical Plan

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Suggested Answer: E 🗳️

by P1314 at Feb. 7, 2024, 10:16 a.m.

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2 weeks, 6 days ago

Selected Answer: E

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1 month, 2 weeks ago

Selected Answer: E

E is correct : https://docs.datastax.com/en/dse/6.9/spark/predicate-push-down.html

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9 months, 3 weeks ago

Selected Answer: E

Query plan. Correct is E

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