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?

ASet up a Cloud CDN in front of the bucket.

BEnable Object Versioning on the bucket.

CStore the data in a multi-region bucket.

DStore the data in Nearline storaqe.

Show Suggested Answer

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

2 months ago

Wait, can a single-zone outage really affect access like that?

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Nakisha

2 months ago

Definitely agree with multi-region, better availability!

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Raina

2 months ago

Storing in Nearline? Seems risky for sensitive data.

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Crissy

3 months ago

Multi-region bucket is the way to go!

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Toshia

3 months ago

I think Object Versioning is important too.

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Stefanie

3 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

3 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

4 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

4 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

4 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

4 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

4 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

5 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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