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Exam Certified Data Engineer Professional topic 1 question 18 discussion

Actual exam question from Databricks's Certified Data Engineer Professional
Question #: 18
Topic #: 1
[All Certified Data Engineer Professional Questions]

Which statement regarding stream-static joins and static Delta tables is correct?

  • A. Each microbatch of a stream-static join will use the most recent version of the static Delta table as of each microbatch.
  • B. Each microbatch of a stream-static join will use the most recent version of the static Delta table as of the job's initialization.
  • C. The checkpoint directory will be used to track state information for the unique keys present in the join.
  • D. Stream-static joins cannot use static Delta tables because of consistency issues.
  • E. The checkpoint directory will be used to track updates to the static Delta table.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️

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Eertyy
Highly Voted 2 months, 3 weeks ago
B is the right answer as Option B is more typical for stream-static joins, as it provides a consistent static DataFrame snapshot for the entire job's duration. Option A might be suitable in specialized cases where you need real-time updates of the static DataFrame for each microbatch.
upvoted 6 times
hamzaKhribi
1 week, 2 days ago
Answer is A, When Azure Databricks processes a micro-batch of data in a stream-static join, the latest valid version of data from the static Delta table joins with the records present in the current micro-batch from https://learn.microsoft.com/en-us/azure/databricks/structured-streaming/delta-lake
upvoted 1 times
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BrianNguyen95
Highly Voted 3 months, 3 weeks ago
correct answer is A
upvoted 5 times
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hamzaKhribi
Most Recent 1 week, 2 days ago
Selected Answer: A
Correct Answer A
upvoted 1 times
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sturcu
2 months ago
Selected Answer: A
A is correct. When Databricks processes a micro-batch of data in a stream-static join, the latest valid version of data from the static
upvoted 1 times
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sagar21692
2 months, 1 week ago
Correct answer is A. https://docs.databricks.com/en/structured-streaming/delta-lake.html
upvoted 1 times
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A (35%)
C (25%)
B (20%)
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