Exam AWS Certified Solutions Architect - Professional SAP-C02 All Questions

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Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 135 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional SAP-C02

Question #: 135
Topic #: 1

[All AWS Certified Solutions Architect - Professional SAP-C02 Questions]

A company is creating a sequel for a popular online game. A large number of users from all over the world will play the game within the first week after launch. Currently, the game consists of the following components deployed in a single AWS Region:

• Amazon S3 bucket that stores game assets
• Amazon DynamoDB table that stores player scores

A solutions architect needs to design a multi-Region solution that will reduce latency, improve reliability, and require the least effort to implement.

What should the solutions architect do to meet these requirements?

A. Create an Amazon CloudFront distribution to serve assets from the S3 bucket. Configure S3 Cross-Region Replication. Create a new DynamoDB table in a new Region. Use the new table as a replica target for DynamoDB global tables.
B. Create an Amazon CloudFront distribution to serve assets from the S3 bucket. Configure S3 Same-Region Replication. Create a new DynamoDB table in a new Region. Configure asynchronous replication between the DynamoDB tables by using AWS Database Migration Service (AWS DMS) with change data capture (CDC).
C. Create another S3 bucket in a new Region, and configure S3 Cross-Region Replication between the buckets. Create an Amazon CloudFront distribution and configure origin failover with two origins accessing the S3 buckets in each Region. Configure DynamoDB global tables by enabling Amazon DynamoDB Streams, and add a replica table in a new Region.
D. Create another S3 bucket in the sine Region, and configure S3 Same-Region Replication between the buckets. Create an Amazon CloudFront distribution and configure origin failover with two origins accessing the S3 buckets. Create a new DynamoDB table in a new Region. Use the new table as a replica target for DynamoDB global tables.

Show Suggested Answer

Suggested Answer: C 🗳️

by zhangyu20000 at Jan. 16, 2023, 2:51 p.m.

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Comments

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zozza2023

Highly Voted 2 years, 4 months ago

Selected Answer: C

DynamoDB global tables + S3 replication+Cloudfront

upvoted 14 times

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masetromain

Highly Voted 2 years, 5 months ago

Option C is the correct answer because it meets the requirements of reducing latency, improving reliability and requiring minimal effort to implement. By creating another S3 bucket in a new Region, and configuring S3 Cross-Region Replication between the buckets, the game assets will be replicated to the new Region, reducing latency for users accessing the assets from that region. Additionally, by creating an Amazon CloudFront distribution and configuring origin failover with two origins accessing the S3 buckets in each Region, it ensures that the game assets will be served to users even if one of the regions becomes unavailable. Configuring DynamoDB global tables by enabling Amazon DynamoDB Streams, and adding a replica table in a new Region, will also improve reliability by allowing the player scores to be replicated and updated in multiple regions, ensuring that the scores are available even in the event of a regional failure.

upvoted 7 times

masetromain

2 years, 5 months ago

Option A is not correct because using the new table as a replica target for DynamoDB global tables will not improve reliability. The same applies for Option D, which only uses S3 Same-Region Replication, which will not reduce latency for users in other regions. Option B is not correct because configuring asynchronous replication between the DynamoDB tables by using AWS Database Migration Service (AWS DMS) with change data capture (CDC) is not the best solution for this use case. It would require additional configuration and management effort.

upvoted 3 times

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jimee11

Most Recent 1 month, 2 weeks ago

Selected Answer: C

CloudFront supports two origins, and Streaming is required to enable Global tables.

upvoted 1 times

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Daniel76

8 months, 3 weeks ago

Selected Answer: C

Just to add for DynamoDB, indeed you will need to create replica in the new region when creating global table, making it accessible in the new region nearer to the user. https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/V2globaltables.tutorial.html

upvoted 1 times

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JoeTromundo

8 months, 3 weeks ago

Selected Answer: C

Option C is correct. Just to clarify: AWS uses DynamoDB Streams to replicate DynamoDB Global Tables. Using the Console, it is enabled automatically. Using the CLI, you must enable it explicitly by using StreamEnabled=true.

upvoted 1 times

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ninomfr64

1 year, 5 months ago

Selected Answer: C

A = "Configure S3 Cross-Region Replication" but doesn't create a new bucket in another region. B = "Configure S3 Same-Region Replication" without creating a second bucket and this should be cross-region. AWS DMS with CDC is not a good fit here, global table is the right option here C = correct D = we need the new bucket in a different region

upvoted 1 times

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career360guru

1 year, 6 months ago

Selected Answer: C

Option C

upvoted 2 times

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shaaam80

1 year, 6 months ago

Selected Answer: C

Answer C. Regarding DynamoDB Streams - Global tables use DynamoDB Streams to replicate data across different Regions. When you create a replica for a global table, a stream is created by default. Any changes to a replica are replicated to all the other replicas within the same global table within a second using DynamoDB Streams.

upvoted 2 times

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blackgamer

1 year, 7 months ago

The answer is A. C added unnecessary complexities such as Amazon DynamoDB Streams and Origin Failover.

upvoted 1 times

helloworldabc

9 months, 4 weeks ago

just C

upvoted 1 times

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ninomfr64

1 year, 5 months ago

Option A doesn't mention creating a new bucket in a different region

upvoted 1 times

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Jay_2pt0_1

1 year, 7 months ago

I initially thought it was C, but I was torn between A and C. You may be right.

upvoted 1 times

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uC6rW1aB

1 year, 9 months ago

Selected Answer: A

other option are incorrect. B: Configure S3 Same-Region Replication.---> It's not meet multi-region requirement. C: Create an Amazon CloudFront distribution and configure origin failover with two origins accessing the S3 buckets in each Region. ---> It's not support for this kinda failover D: Create another S3 bucket in the same Region, and configure S3 Same-Region Replication between the buckets. ---> It's not meet multi-region requirement.

upvoted 2 times

ninomfr64

1 year, 5 months ago

C is correct, Origin Group allows failover see https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/high_availability_origin_failover.html

upvoted 2 times

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dkcloudguru

1 year, 9 months ago

option c is the easiest way to do

upvoted 1 times

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ProMax

1 year, 9 months ago

Selected Answer: A

Creating an Amazon CloudFront distribution will reduce latency for global users by serving assets from the closest edge location. S3 Cross-Region Replication will ensure that game assets are available in another region, improving reliability. Creating a new DynamoDB table in a new region and using it as a replica target for DynamoDB global tables will enable multi-region replication, improving reliability.

upvoted 1 times

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SK_Tyagi

1 year, 10 months ago

Selected Answer: C

Option C has another differentiator - DynamoDBStreams that will assist in Reliability

upvoted 2 times

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ggrodskiy

1 year, 11 months ago

Correct A. CloudFront does not support origin failover with two origins accessing the S3 buckets in each Region. According to the AWS documentationhttps://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/high_availability_origin_failover.html, origin failover only works within the same Region, not across Regions. This means that you can only configure origin failover with two origins that are in the same Region as the CloudFront distribution. If you want to use origin failover with S3 buckets in different Regions, you need to create multiple CloudFront distributions, one for each Region, and configure them to use the same domain name with geolocation routinghttps://blog.ippon.tech/when-a-cloudfront-origin-must-fail-for-testing-high-availability/.

upvoted 1 times

venvig

1 year, 9 months ago

Referred to your AWS doc link. I don't see any condition that states that the origins in the origin group cannot be from two different regions. Can you provide the statement from the AWS doc that you are referring to please ?

upvoted 1 times

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