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Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 430 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional SAP-C02
Question #: 430
Topic #: 1
[All AWS Certified Solutions Architect - Professional SAP-C02 Questions]

A company runs a highly available data collection application on Amazon EC2 in the eu-north-1 Region. The application collects data from end-user devices and writes records to an Amazon Kinesis data stream and a set of AWS Lambda functions that process the records. The company persists the output of the record processing to an Amazon S3 bucket in eu-north-1. The company uses the data in the S3 bucket as a data source for Amazon Athena.

The company wants to increase its global presence. A solutions architect must launch the data collection capabilities in the sa-east-1 and ap-northeast-1 Regions. The solutions architect deploys the application, the Kinesis data stream, and the Lambda functions in the two new Regions. The solutions architect keeps the S3 bucket in eu-north-1 to meet a requirement to centralize the data analysis.

During testing of the new setup, the solutions architect notices a significant lag on the arrival of data from the new Regions to the S3 bucket.

Which solution will improve this lag time the MOST?

  • A. In each of the two new Regions, set up the Lambda functions to run in a VPC. Set up an S3 gateway endpoint in that VPC.
  • B. Turn on S3 Transfer Acceleration on the S3 bucket in eu-north-1. Change the application to use the new S3 accelerated endpoint when the application uploads data to the S3 bucket.
  • C. Create an S3 bucket in each of the two new Regions. Set the application in each new Region to upload to its respective S3 bucket. Set up S3 Cross-Region Replication to replicate data to the S3 bucket in eu-north-1.
  • D. Increase the memory requirements of the Lambda functions to ensure that they have multiple cores available. Use the multipart upload feature when the application uploads data to Amazon S3 from Lambda.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by alexis123456 at Feb. 5, 2024, 11:22 p.m.
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wyeedh1
Highly Voted 1 year, 1 month ago
Selected Answer: C
s3 transfer acceleration is not supported in eu-north-1 region yet https://docs.aws.amazon.com/AmazonS3/latest/userguide/transfer-acceleration.html
upvoted 18 times
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VerRi
Highly Voted 11 months, 4 weeks ago
Selected Answer: C
"improve this lag time the MOST" means improve the time for "uploading files" not "uploading the files to the destination." Uploading the files to the bucket in the same region is faster than transferring them to other regions.
upvoted 7 times
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itsjunukim
Most Recent 3 days, 21 hours ago
Selected Answer: B
"keeps the S3 bucket in eu-north-1 to meet a requirement to centralize the data analysis" B
upvoted 1 times
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0b43291
4 months ago
Selected Answer: C
By implementing Option C, the company can leverage the proximity of local S3 buckets in each Region, while still maintaining a centralized data store in eu-north-1 through Cross-Region Replication. This approach minimizes the lag time for data arrival and ensures that the data analysis in Amazon Athena is performed on the complete and up-to-date dataset. The other options have limitations or may not address the lag time issue effectively: Option A (VPC and S3 gateway endpoint) does not directly address the latency issue caused by the long distances between Regions. Option B (S3 Transfer Acceleration) can improve transfer speeds but may not be as effective as having local S3 buckets in each Region. Option D (increasing Lambda memory and using multipart uploads) may improve Lambda performance but does not address the underlying network latency issue.
upvoted 1 times
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AzureDP900
4 months ago
Considering the current limitations of S3 Transfer Acceleration in the eu-north-1 Region, I would say that Option C is actually the best choice.
upvoted 1 times
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AloraCloud
4 months, 1 week ago
Except if RTC is enabled you cannot guarantee that the data replicated to the central S3 bucket in eu-north-1 will be up to date. I'll be dammed if AWS is really expecting folks to remember the regions which do not have the Amazon S3 Transfer Acceleration feature.
upvoted 2 times
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AloraCloud
5 months ago
I think the answer is C because Amazon Kinesis Data Streams cannot directly leverage S3 Transfer Acceleration. S3 Transfer Acceleration is typically used for accelerating transfers from clients to S3 and doesn't support Kinesis Data Streams directly.
upvoted 2 times
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Syre
6 months ago
Selected Answer: B
While C would work, it adds complexity by requiring separate S3 buckets in each Region and replicating data, which could increase cost and delay due to replication schedules.
upvoted 2 times
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trungtd
9 months, 2 weeks ago
Selected Answer: C
No matter how fast you run, you cannot run from Tokyo to Stockholm as fast as someone 10km from Stockholm.
upvoted 2 times
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e4bc18e
10 months, 1 week ago
Answer is C but feel this is one they definitely want people to get wrong. No one is going to memorize which regions every feature is supported in, it is something anyone would look up.
upvoted 2 times
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seetpt
10 months, 2 weeks ago
Selected Answer: C
I would choose B but it cannot be B because S3 Transfer Acceleration is not supported in eu-north-1. This leaves C as the only viable option.
upvoted 3 times
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qaz12wsx
10 months, 2 weeks ago
Selected Answer: C
agree with bjexamprep
upvoted 3 times
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bjexamprep
11 months, 1 week ago
Selected Answer: C
S3 Transfer Acceleration achieves acceleration by AWS routing traffic to AWS cloudfront edge location and transfer aws network backbone. The key speed improvement is AWS network backbone. While, in this case, the application in the two new regions is the client to write the output to S3 in EU, which means the client is already on AWS, the data transportation is already on AWS network backbone. So S3 Transfer Acceleration is not helping at all. B is out. C is the best answer.
upvoted 6 times
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leliodesouza
11 months, 2 weeks ago
Selected Answer: C
Correct Answer is C. S3 transfer acceleration is not yet supported in the eu-north-1 region, as wyeedh1 commented. https://docs.aws.amazon.com/AmazonS3/latest/userguide/transfer-acceleration.html
upvoted 4 times
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akiakiaki
11 months, 3 weeks ago
Selected Answer: C
wyeedh1
upvoted 2 times
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failexamonly
11 months, 3 weeks ago
Selected Answer: C
see wyeedh1 answer
upvoted 3 times
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career360guru
1 year ago
Selected Answer: B
Option B
upvoted 3 times
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