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Exam Professional Cloud Architect topic 1 question 123 discussion

Actual exam question from Google's Professional Cloud Architect
Question #: 123
Topic #: 1
[All Professional Cloud Architect Questions]

You need to deploy a stateful workload on Google Cloud. The workload can scale horizontally, but each instance needs to read and write to the same POSIX filesystem. At high load, the stateful workload needs to support up to 100 MB/s of writes. What should you do?

  • A. Use a persistent disk for each instance.
  • B. Use a regional persistent disk for each instance.
  • C. Create a Cloud Filestore instance and mount it in each instance.
  • D. Create a Cloud Storage bucket and mount it in each instance using gcsfuse.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by manhmaluc at June 30, 2021, 4:19 p.m.

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TotoroChina
Highly Voted 4 years ago
Answer should be C, https://cloud.google.com/storage/docs/gcs-fuse#notes
upvoted 36 times
Urban_Life
3 years, 6 months ago
https://cloud.google.com/filestore
upvoted 4 times
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JeffClarke111
4 years ago
Agreed - C
upvoted 5 times
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elainexs
3 years, 1 month ago
"“Cloud Storage FUSE is an open source [FUSE](http://fuse.sourceforge.net/) adapter that allows you to mount Cloud Storage buckets as file systems on Linux or macOS systems. It also provides a way for applications to upload and download Cloud Storage objects using standard file system semantics. Cloud Storage FUSE can be run anywhere with connectivity to Cloud Storage, including Google Compute Engine VMs or on-premises systems[**1**](https://cloud.google.com/storage/docs/gcs-fuse#f1-note)." D says "gcsfuse", should be D
upvoted 4 times
Frollo
2 years, 8 months ago
FUSE is not posix
upvoted 11 times
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CloudWars
1 year, 11 months ago
directly from the documentation of gcs fuse > While Cloud Storage FUSE has a file system interface, it is not like an NFS or CIFS file system on the backend. Additionally, Cloud Storage FUSE is not POSIX compliant. For a POSIX file system product in Google Cloud, see Filestore.
upvoted 8 times
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ArtistS
1 year, 7 months ago
Google Cloud Storage Fuse is not POSIX compliant so C
upvoted 3 times
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odacir
1 year, 7 months ago
Not, you need a file system not a blob storage...
upvoted 2 times
decw
1 year, 6 months ago
''While Cloud Storage FUSE has a file system interface, it is not like an NFS or CIFS file system on the backend. Additionally, Cloud Storage FUSE is not POSIX compliant. For a POSIX file system product in Google Cloud, see Filestore.''
upvoted 5 times
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XDevX
Highly Voted 4 years ago
IMHO d) is wrong, the correct answer is c). The requirement is explicitly POSIX filesystem - using gcsfuse Cloud Storage still remains an object storage - IMHO gcsfuse brings a lot of downsizes compared with Filestore and in the question there are no indications that a non-POSIX filesystem shall be used.
upvoted 16 times
enado
2 years ago
Additional google explicitly states that Cloud Storage fuse is not POSIX compliant https://cloud.google.com/storage/docs/gcs-fuse#differences-and-limitations
upvoted 2 times
enado
2 years ago
So the correct answer is C
upvoted 1 times
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plumbig11
Most Recent 6 months, 1 week ago
Selected Answer: C
Posix is good for filestore
upvoted 2 times
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kip21
6 months, 3 weeks ago
Selected Answer: C
Cloud Storage FUSE is not POSIX compliant
upvoted 1 times
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afsarkhan
12 months ago
Selected Answer: C
Answer is C As filestore can be attached to multiple pods/vm in R/W mode A & B are wrong for the same reason, PD can be attached to single pod for write operation.
upvoted 1 times
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Gino17m
1 year, 2 months ago
Selected Answer: C
C 1. "each Instance needs to read and wrlte to the same POSIX filesystem" 2. Cloud Storage is not POSIX compliant filesystem but Object Storage and gcsfuse only "simulates" file system 3. See: https://cloud.google.com/storage/docs/gcs-fuse#differences-and-limitations "Cloud Storage FUSE is not POSIX compliant. For a POSIX file system product in Google Cloud, see Filestore.
upvoted 1 times
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Polosaty
1 year, 3 months ago
Selected Answer: C
From https://cloud.google.com/storage/docs/gcs-fuse#differences-and-limitations Cloud Storage FUSE is not POSIX compliant. For a POSIX file system product in Google Cloud, see Filestore.
upvoted 2 times
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Pime13
1 year, 5 months ago
Selected Answer: C
https://cloud.google.com/storage/docs/gcs-fuse#notes
upvoted 1 times
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discuss24
1 year, 6 months ago
C is correct, Per documentation ( Cloud Storage FUSE is not POSIX compliant. For a POSIX file system product in Google Cloud, see Filestore)
upvoted 1 times
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iamleond
1 year, 6 months ago
Selected Answer: C
https://cloud.google.com/storage/docs/gcs-fuse, not POSIX complieant.
upvoted 1 times
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6b13108
1 year, 7 months ago
Yes, the correct answer is C: LIMITATIONS: "While Cloud Storage FUSE has a file system interface, it is not like an NFS or CIFS file system on the backend. Additionally, Cloud Storage FUSE is not POSIX compliant. For a POSIX file system product in Google Cloud, see Filestore." https://cloud.google.com/storage/docs/gcs-fuse#differences-and-limitations
upvoted 2 times
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odacir
1 year, 7 months ago
Selected Answer: D
You need a file system not a blob storage...
upvoted 2 times
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thewalker
1 year, 7 months ago
Selected Answer: C
As per the documentation, https://cloud.google.com/storage/docs/gcs-fuse#differences-and-limitations. The option is C.
upvoted 1 times
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bhinar
1 year, 11 months ago
Selected Answer: C
firestore is POSIX
upvoted 1 times
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coder36
2 years ago
Could anyone please tell why A or B is wrong? Thanks
upvoted 1 times
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BEE_HI_5
2 years, 2 months ago
https://cloud.google.com/storage/docs/gcs-fuse#differences-and-limitations Answer C because POSIX and FUSE are not compatible. Google recommends using Filestore to address POSIX file operations
upvoted 3 times
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raselsys
2 years, 3 months ago
Selected Answer: C
Answer is C https://cloud.google.com/storage/docs/gcs-fuse Clearly mentioned to see filestore for POSIX
upvoted 2 times
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