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Google Associate Data Practitioner Exam - Topic 2 Question 12 Discussion

Actual exam question for Google's Associate Data Practitioner exam
Question #: 12
Topic #: 2
[All Associate Data Practitioner Questions]

You are constructing a data pipeline to process sensitive customer data stored in a Cloud Storage bucket. You need to ensure that this data remains accessible, even in the event of a single-zone outage. What should you do?

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Suggested Answer: C

Storing the data in a multi-region bucket ensures high availability and durability, even in the event of a single-zone outage. Multi-region buckets replicate data across multiple locations within the selected region, providing resilience against zone-level failures and ensuring that the data remains accessible. This approach is particularly suitable for sensitive customer data that must remain available without interruptions.

A single-zone outage requires high availability across zones or regions. Cloud Storage offers location-based redundancy options:

Option A: Cloud CDN caches content for web delivery but doesn't protect against underlying storage outages---it's for performance, not availability of the source data.

Option B: Object Versioning retains old versions of objects, protecting against overwrites or deletions, but doesn't ensure availability during a zone failure (still tied to one location).

Option C: Multi-region buckets (e.g., us or eu) replicate data across multiple regions, ensuring accessibility even if a single zone or region fails. This provides the highest availability for sensitive data in a pipeline.

Option D: Nearline storage is a low-cost class with lower availability (single-region by default), not designed for outage resilience. Why C is Best: Multi-region storage offers geo-redundancy, guaranteeing data access during outages with no additional configuration. It's the simplest, most reliable choice for pipeline continuity. Extract from Google Documentation: From 'Cloud Storage Bucket Locations' (https://cloud.google.com/storage/docs/locations): 'Multi-region buckets replicate data across multiple regions within a geography, providing high availability and durability, ensuring access even if a single zone or region experiences an outage.' Reference: Google Cloud Documentation - 'Cloud Storage Locations' (https://cloud.google.com/storage/docs/locations).


by Charlena at Jun 13, 2025, 05:22 PM

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Renato
5 months ago
Wait, can a single-zone outage really affect access like that?
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Nakisha
5 months ago
Definitely agree with multi-region, better availability!
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Raina
5 months ago
Storing in Nearline? Seems risky for sensitive data.
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Crissy
6 months ago
Multi-region bucket is the way to go!
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Toshia
6 months ago
I think Object Versioning is important too.
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Stefanie
6 months ago
I thought Nearline storage was for infrequently accessed data, so I don't think option D is relevant here, but I'm not completely confident.
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Shantay
6 months ago
I practiced a similar question where multi-region storage was emphasized for availability, so I'm leaning towards option C as well.
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Sherita
7 months ago
I'm not entirely sure, but I feel like enabling Object Versioning could help with data recovery, though it doesn't really address outages directly.
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Paris
7 months ago
I remember something about multi-region buckets being more resilient to outages, so I think option C might be the right choice.
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Golda
7 months ago
Storing the data in Nearline storage doesn't seem like the best approach here. We need to keep the data highly available, not just archive it.
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Tomoko
7 months ago
I'm pretty confident that enabling Object Versioning is not the right solution for this problem. That's more about data recovery, not availability.
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Susana
7 months ago
I'm a bit confused by the options. Does setting up a CDN really help with availability in a single-zone outage?
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Aide
8 months ago
Okay, I think I know the answer here. Storing the data in a multi-region bucket should ensure it's accessible even if there's an outage in a single zone.
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Pamella
8 months ago
Hmm, this seems like a tricky one. I'll need to think through the different options carefully.
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Vincent
11 months ago
Just don't try to CDN sensitive customer data, that's a recipe for disaster. Multi-region is the clear winner here.
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Jerlene
10 months ago
Agreed, multi-region is the best option for ensuring accessibility.
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Geoffrey
10 months ago
C) Store the data in a multi-region bucket.
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Rodolfo
10 months ago
A) Set up a Cloud CDN in front of the bucket.
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Sherita
11 months ago
I'm not sure about that. I think enabling Object Versioning on the bucket could also help in ensuring data accessibility during an outage.
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Stephaine
11 months ago
I dunno, I'm feeling a little too Nearline for my liking. Let's go with C and keep things in the cloud, baby!
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Pearly
10 months ago
C) Store the data in a multi-region bucket.
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Alona
10 months ago
B) Enable Object Versioning on the bucket.
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Ronnie
10 months ago
A) Set up a Cloud CDN in front of the bucket.
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Ellsworth
11 months ago
I agree with Aide. Storing the data in a multi-region bucket is the best option for high availability.
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Kaycee
11 months ago
Hmm, I'm torn between B and C. Versioning is nice, but multi-region storage is the way to future-proof this pipeline.
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Renato
10 months ago
C) Store the data in a multi-region bucket.
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Roselle
10 months ago
A) Set up a Cloud CDN in front of the bucket.
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Haydee
11 months ago
C is the way to go! Gotta keep that data safe and accessible no matter what.
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Veronika
10 months ago
Agreed, multi-region storage is the best option for ensuring accessibility during outages.
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Merrilee
10 months ago
Definitely, it's important to have redundancy in place for data protection.
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Malcom
10 months ago
That's a good idea. Multi-region storage ensures high availability.
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Truman
11 months ago
C) Store the data in a multi-region bucket.
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Aide
11 months ago
I think we should store the data in a multi-region bucket to ensure accessibility in case of a single-zone outage.
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