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Google Professional Cloud Database Engineer Exam - Topic 14 Question 58 Discussion

You work for a financial services company that wants to use fully managed database services. Traffic volume for your consumer services products has increased annually at a constant rate with occasional spikes around holidays. You frequently need to upgrade the capacity of your database. You want to use Cloud Spanner and include an automated method to increase your hardware capacity to support a higher level of concurrency. What should you do?
A) Use linear scaling to implement the Autoscaler-based architecture
B) Use direct scaling to implement the Autoscaler-based architecture.
C) Upgrade the Cloud Spanner instance on a periodic basis during the scheduled maintenance window.
D) Set up alerts that are triggered when Cloud Spanner utilization metrics breach the threshold, and then schedule an upgrade during the scheduled maintenance window.

Google Professional Cloud Database Engineer Exam - Topic 14 Question 58 Discussion

Actual exam question for Google's Professional Cloud Database Engineer exam
Question #: 58
Topic #: 14
[All Professional Cloud Database Engineer Questions]

You work for a financial services company that wants to use fully managed database services. Traffic volume for your consumer services products has increased annually at a constant rate with occasional spikes around holidays. You frequently need to upgrade the capacity of your database. You want to use Cloud Spanner and include an automated method to increase your hardware capacity to support a higher level of concurrency. What should you do?

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Suggested Answer: A

Linear scaling is best used with load patterns that change more gradually or have a few large peaks. The method calculates the minimum number of nodes or processing units required to keep utilization below the scaling threshold. The number of nodes or processing units added or removed in each scaling event is not limited to a fixed step amount. https://cloud.google.com/spanner/docs/autoscaling-overview#linear


by Sage at Jul 06, 2025, 12:55 AM

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Latanya
7 months ago
Wait, are we really considering D? That seems risky!
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Berry
7 months ago
C sounds too manual for my taste.
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Makeda
7 months ago
A is the way to go for scaling!
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Bernadine
7 months ago
Autoscaler is essential for handling those holiday spikes!
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Glory
7 months ago
I disagree, B might be more efficient.
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Elke
8 months ago
I vaguely remember that upgrading during maintenance windows could lead to downtime, so I’m hesitant about option C. It feels risky for consumer services.
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Maybelle
8 months ago
I lean towards option D because setting up alerts seems proactive, but I wonder if it’s the most efficient way to handle spikes in traffic.
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Jerry
8 months ago
I think we practiced a similar question where we had to choose between scaling methods. I feel like the Autoscaler-based architecture is key, but I can't recall the specifics.
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Ula
8 months ago
I remember studying about Cloud Spanner's scaling options, but I'm not sure if linear or direct scaling is the right choice here.
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Alexis
9 months ago
Based on the details provided, I think the best approach is to use linear scaling to implement the Autoscaler-based architecture. That way, the system can automatically scale up as needed to handle the increased traffic.
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Ashton
9 months ago
Upgrading the Cloud Spanner instance on a periodic basis could work, but it might not be the most efficient approach if the traffic volume is constantly increasing. I'd prefer a more dynamic solution.
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Marleen
9 months ago
The question mentions needing to support a higher level of concurrency, so I'm leaning towards the option that involves setting up alerts and scheduling upgrades during maintenance windows.
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Tenesha
9 months ago
Hmm, I'm a bit confused about the differences between linear and direct scaling. I'll need to review that part of the material again before deciding.
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Erick
9 months ago
This question seems straightforward. I think the key is to use the Autoscaler-based architecture to automatically scale the Cloud Spanner instance as needed.
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Nichelle
11 months ago
Option A is the clear winner here. Linear scaling? That's my middle name!
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Geraldine
11 months ago
Hmm, I dunno, these database options are making my head spin. Can we just use a spreadsheet instead?
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Ceola
11 months ago
That's a good point, we should consider both options before making a decision.
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Melita
11 months ago
Direct scaling might be faster, but linear scaling provides more flexibility for our traffic spikes.
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Glendora
11 months ago
I'm not sure, maybe direct scaling could be more efficient in our case.
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Ceola
11 months ago
I agree with Melita, linear scaling would be the best option for our needs.
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Melita
12 months ago
I think we should use linear scaling with Autoscaler-based architecture.
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Elfriede
12 months ago
I'm all for option B. Direct scaling is where it's at! No need to get fancy with Autoscaler-based stuff.
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Rolland
11 months ago
User 2: Yeah, direct scaling seems like the simpler and more efficient choice.
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Sue
11 months ago
User 1: I think we should go with option B for direct scaling.
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Lorean
1 year ago
D sounds good, but I'm a bit concerned about the scheduled maintenance window. What if we need to scale up during off-hours?
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Twana
11 months ago
C) Upgrade the Cloud Spanner instance on a periodic basis during the scheduled maintenance window.
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Miesha
12 months ago
B) Use direct scaling to implement the Autoscaler-based architecture.
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Gail
12 months ago
A) Use linear scaling to implement the Autoscaler-based architecture
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Marcos
1 year ago
Autoscaler is the way to go! Less manual work and more automation, that's what I like to see.
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Tawanna
11 months ago
D) Setting up alerts for utilization metrics is a good proactive approach
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Lacey
12 months ago
B) I agree, using Autoscaler will definitely help with the automation
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Shanda
1 year ago
A) Use linear scaling to implement the Autoscaler-based architecture
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