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Question 124 - Professional Data Engineer discussion

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Which of the following is NOT a valid use case to select HDD (hard disk drives) as the storage for Google Cloud Bigtable?

A.
You expect to store at least 10 TB of data.
Answers
A.
You expect to store at least 10 TB of data.
B.
You will mostly run batch workloads with scans and writes, rather than frequently executing random reads of a small number of rows.
Answers
B.
You will mostly run batch workloads with scans and writes, rather than frequently executing random reads of a small number of rows.
C.
You need to integrate with Google BigQuery.
Answers
C.
You need to integrate with Google BigQuery.
D.
You will not use the data to back a user-facing or latency-sensitive application.
Answers
D.
You will not use the data to back a user-facing or latency-sensitive application.
Suggested answer: C

Explanation:

For example, if you plan to store extensive historical data for a large number of remote-sensing devices and then use the data to generate daily reports, the cost savings for HDD storage may justify the performance tradeoff. On the other hand, if you plan to use the data to display a real-time dashboard, it probably would not make sense to use HDD storageóreads would be much more frequent in this case, and reads are much slower with HDD storage.

Reference: https://cloud.google.com/bigtable/docs/choosing-ssd-hdd

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asked 18/09/2024
Hermann Saint-Fleur
39 questions
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