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Google Professional Data Engineer Exam - Topic 6 Question 21 Discussion

You are running a pipeline in Cloud Dataflow that receives messages from a Cloud Pub/Sub topic and writes the results to a BigQuery dataset in the EU. Currently, your pipeline is located in europe-west4 and has a maximum of 3 workers, instance type n1-standard-1. You notice that during peak periods, your pipeline is struggling to process records in a timely fashion, when all 3 workers are at maximum CPU utilization. Which two actions can you take to increase performance of your pipeline? (Choose two.)
B) Use a larger instance type for your Cloud Dataflow workers and E) Create a temporary table in Cloud Spanner that will act as a buffer for new data. Create a new step in your pipeline to write to this table first, and then create a new pipeline to write from Cloud Spanner to BigQuery
A) Increase the number of max workers
C) Change the zone of your Cloud Dataflow pipeline to run in us-central1
D) Create a temporary table in Cloud Bigtable that will act as a buffer for new data. Create a new step in your pipeline to write to this table first, and then create a new pipeline to write from Cloud Bigtable to BigQuery

Google Professional Data Engineer Exam - Topic 6 Question 21 Discussion

Actual exam question for Google's Professional Data Engineer exam
Question #: 21
Topic #: 6
[All Professional Data Engineer Questions]

You are running a pipeline in Cloud Dataflow that receives messages from a Cloud Pub/Sub topic and writes the results to a BigQuery dataset in the EU. Currently, your pipeline is located in europe-west4 and has a maximum of 3 workers, instance type n1-standard-1. You notice that during peak periods, your pipeline is struggling to process records in a timely fashion, when all 3 workers are at maximum CPU utilization. Which two actions can you take to increase performance of your pipeline? (Choose two.)

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Suggested Answer: B, E

by Gracia at May 08, 2022, 01:58 PM

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Pete
7 months ago
More workers and bigger instances should do the trick!
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Kami
7 months ago
I think creating a buffer in Bigtable is overkill for this situation.
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Lashandra
8 months ago
Wait, changing the zone to us-central1? Isn't that slower for EU data?
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Alica
8 months ago
Definitely agree on using a larger instance type too.
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Lindsey
8 months ago
Increasing the number of max workers is a solid move!
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Barbra
8 months ago
Changing the zone to us-central1 doesn't seem right since we're already in europe-west4. I don't think that would help with performance.
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Demetra
8 months ago
I think we practiced a similar question where increasing workers helped. I feel like option A and B could work well together.
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Tomoko
8 months ago
I'm a bit unsure about the instance types. Would switching to a larger instance type really make a significant difference?
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Billy
8 months ago
I remember we discussed increasing the number of max workers to handle more load during peak times. That seems like a solid option.
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Tammara
8 months ago
Okay, let me break this down. The key here is that we need to give the User on the Reviewer_c record read-only access to the Defect_c record. I think Apex managed sharing or criteria-based sharing might be the way to go.
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Yong
8 months ago
Hmm, I'm not too familiar with the Cisco Unity Connection restriction table. I'll need to think this through carefully.
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Tracie
8 months ago
Okay, I've got an idea. If we use Proof instead of [PREVIEW], that should prevent the prefix from deploying in the live sends. I'm feeling confident about that.
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Lenna
8 months ago
This looks like a pretty straightforward question about HTML5 audio support. I think I can handle this one.
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Jesusita
8 months ago
Okay, let's see. I think the key here is whether the new requirements are immediately enforced on existing passwords or not. I'll have to weigh the options carefully.
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