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Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 165 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional SAP-C02
Question #: 165
Topic #: 1
[All AWS Certified Solutions Architect - Professional SAP-C02 Questions]

A company is migrating a document processing workload to AWS. The company has updated many applications to natively use the Amazon S3 API to store, retrieve, and modify documents that a processing server generates at a rate of approximately 5 documents every second. After the document processing is finished, customers can download the documents directly from Amazon S3.

During the migration, the company discovered that it could not immediately update the processing server that generates many documents to support the S3 API. The server runs on Linux and requires fast local access to the files that the server generates and modifies. When the server finishes processing, the files must be available to the public for download within 30 minutes.

Which solution will meet these requirements with the LEAST amount of effort?

  • A. Migrate the application to an AWS Lambda function. Use the AWS SDK for Java to generate, modify, and access the files that the company stores directly in Amazon S3.
  • B. Set up an Amazon S3 File Gateway and configure a file share that is linked to the document store. Mount the file share on an Amazon EC2 instance by using NFS. When changes occur in Amazon S3, initiate a RefreshCache API call to update the S3 File Gateway.
  • C. Configure Amazon FSx for Lustre with an import and export policy. Link the new file system to an S3 bucket. Install the Lustre client and mount the document store to an Amazon EC2 instance by using NFS.
  • D. Configure AWS DataSync to connect to an Amazon EC2 instance. Configure a task to synchronize the generated files to and from Amazon S3.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by schalke04 at Feb. 2, 2023, 7:43 p.m.
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dev112233xx
Highly Voted 2 years ago
Selected Answer: B
B is correct imo C is incorrect, FSx for Luster doesn't support NFS protocol It actually support only POSIX protocol: Custom (POSIX-compliant) protocol optimized for performance
upvoted 26 times
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schalke04
Highly Voted 2 years, 2 months ago
Selected Answer: C
C: Amazon FSx for Lustre is a fully managed service that provides cost-effective, high-performance, scalable storage for compute workloads. Powered by Lustre, the world’s most popular high-performance file system, FSx for Lustre offers shared storage with sub-ms latencies, up to terabytes per second of throughput, and millions of IOPS. FSx for Lustre file systems can also be linked to Amazon Simple Storage Service (S3) buckets, allowing you to access and process data concurrently from both a high-performance file system and from the S3 API.
upvoted 23 times
lxrdm
1 year, 9 months ago
I wouldnt choose Lustre.. would only pick it if its related to HPC (high performance computing), the amount of files generated here is nothing..
upvoted 5 times
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rbm2023
1 year, 11 months ago
I disagree with option C. This is an example of how to mount a Lustre from an EC2 Linux system. it does not use NFS sudo mount -t lustre <fsx-dns-name>@tcp:/<mount-point> Amazon FSx for Lustre provides its own Lustre-specific mount command and protocol for mounting the file system on Linux instances. The lustre file system type in the mount command indicates that it is specifically for mounting Lustre-based file systems, such as Amazon FSx for Lustre. I would still go for option B
upvoted 9 times
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d401c0d
Most Recent 2 months, 3 weeks ago
Selected Answer: B
Luster does not support NFS.
upvoted 1 times
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AWSum1
6 months, 2 weeks ago
Note that it keeps saying "The Server" implying 1 server and not a fleet or multiple. NFS is from 1 client to 1 server. So C is incorrect
upvoted 1 times
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JoeTromundo
6 months, 3 weeks ago
Selected Answer: B
Option C is not possible: how will you mount the document store on the EC2 instance through the Lustre client using NFS? Lustre is not compatible with NFS!
upvoted 1 times
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xktm
8 months, 3 weeks ago
The English in this question is very confusing, what is it trying do? what is the problem? where is the processing server?
upvoted 5 times
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duriselvan
1 year, 2 months ago
https://repost.aws/knowledge-center/storage-gateway-automate-refreshcache
upvoted 1 times
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ninomfr64
1 year, 3 months ago
Selected Answer: B
A = migrating to lambda requires a lot of work and doesn't solve the need to have fast access to files B = correct C = FSx for Lustre doesn't support NFS D = DataSynch can schedule transfer hourly, daily or weekly, cannot meet 30 minutes requirement
upvoted 7 times
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career360guru
1 year, 4 months ago
Selected Answer: B
Option B as Fsx Luster though supports Linux, it does not support NFS.
upvoted 3 times
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career360guru
1 year, 5 months ago
Selected Answer: B
B is right. Though it is meant to be used to with on-premise in Hybrid environment, it is possible to use it on EC2.
upvoted 3 times
Dougmaster
5 months, 3 weeks ago
B is right. If it wasn't possible to update that Linux server at that moment it implies they would have to remain it on premises for a while, in this case Amazon S3 File Gateway is the way to go.
upvoted 1 times
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severlight
1 year, 5 months ago
Selected Answer: B
just because NFS mentioned with Lustre, but everything else is pointing to the Lustre: Linux, fast, read/writes to S3
upvoted 2 times
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covabix879
1 year, 6 months ago
Selected Answer: C
B. Extra effort due to refreshCache API D. DataSync runs in task schedule, which can't run faster than once per hour. So remaining answer is C
upvoted 1 times
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task_7
1 year, 6 months ago
Selected Answer: D
The core of the problem is make the file available in S3 for When the server finishes processing, the files must be available to the public for download within 30 minutes. Which solution will meet these requirements with the LEAST amount of effort? I think Option D (AWS DataSync) is a more straightforward and efficient choice.
upvoted 1 times
covabix879
1 year, 6 months ago
DataSync task cannot run faster than 1 hour. "Even with a cron expression, you can't schedule a task to run at an interval faster than 1 hour." https://docs.aws.amazon.com/datasync/latest/userguide/task-scheduling.html
upvoted 5 times
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Gabehcoud
1 year, 7 months ago
Selected Answer: B
The server is running Linux, How can we use Fsx?
upvoted 4 times
chikorita
1 year, 7 months ago
FSX for Lustre is for Linux and does not support Windows
upvoted 3 times
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CloudHandsOn
1 year, 7 months ago
Selected Answer: B
I believe that B is correct, given that Lustre does not support NFS (it supports POSIX)
upvoted 3 times
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xav1er
1 year, 8 months ago
Selected Answer: B
B as file gateway seems simple working solution for this. Lustre does not support NFS and might be an overkill for this solution - its primary used for HPC clusters. DataSync is rather for batch daad migrations and periodic data migration jobs, isn't it?
upvoted 5 times
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softarts
1 year, 8 months ago
Selected Answer: B
don't understand the question and answer, include B&C. how does it mount to EC2 by using NFS? I think the processing server is running on Premise??
upvoted 3 times
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