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Exam Certified Data Engineer Professional All Questions

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Exam Certified Data Engineer Professional topic 1 question 32 discussion

Actual exam question from Databricks's Certified Data Engineer Professional
Question #: 32
Topic #: 1
[All Certified Data Engineer Professional Questions]

The data engineering team maintains the following code:

Assuming that this code produces logically correct results and the data in the source tables has been de-duplicated and validated, which statement describes what will occur when this code is executed?

  • A. A batch job will update the enriched_itemized_orders_by_account table, replacing only those rows that have different values than the current version of the table, using accountID as the primary key.
  • B. The enriched_itemized_orders_by_account table will be overwritten using the current valid version of data in each of the three tables referenced in the join logic.
  • C. An incremental job will leverage information in the state store to identify unjoined rows in the source tables and write these rows to the enriched_iteinized_orders_by_account table.
  • D. An incremental job will detect if new rows have been written to any of the source tables; if new rows are detected, all results will be recalculated and used to overwrite the enriched_itemized_orders_by_account table.
  • E. No computation will occur until enriched_itemized_orders_by_account is queried; upon query materialization, results will be calculated using the current valid version of data in each of the three tables referenced in the join logic.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by sturcu at Oct. 16, 2023, 11:57 a.m.

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nedlo
1 month ago
Selected Answer: B
i agree. Cannot be E because write itself is action
upvoted 1 times
...
AndreFR
3 months ago
Selected Answer: B
B because code has : .mode(“Overwrite”)
upvoted 1 times
...
imatheushenrique
5 months, 3 weeks ago
B is correct
upvoted 1 times
...
AziLa
10 months ago
Correct Ans is B
upvoted 2 times
...
Jay_98_11
10 months, 2 weeks ago
Selected Answer: B
correct
upvoted 2 times
...
sturcu
1 year, 1 month ago
Selected Answer: B
B is correct
upvoted 3 times
...

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