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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 49 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 49
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A real estate company is building an internal application so that real estate agents can upload photos and videos of various properties. The application will store these photos and videos in an Amazon S3 bucket as objects and will use Amazon DynamoDB to store corresponding metadata. The S3 bucket will be configured to publish all PUT events for new object uploads to an Amazon Simple Queue Service (Amazon SQS) queue.
A compute cluster of Amazon EC2 instances will poll the SQS queue to find out about newly uploaded objects. The cluster will retrieve new objects, perform proprietary image and video recognition and classification update metadata in DynamoDB and replace the objects with new watermarked objects. The company does not want public IP addresses on the EC2 instances.
Which networking design solution will meet these requirements MOST cost-effectively as application usage increases?

  • A. Place the EC2 instances in a public subnet. Disable the Auto-assign Public IP option while launching the EC2 instances. Create an internet gateway. Attach the internet gateway to the VPC. In the public subnet's route table, add a default route that points to the internet gateway.
  • B. Place the EC2 instances in a private subnet. Create a NAT gateway in a public subnet in the same Availability Zone. Create an internet gateway. Attach the internet gateway to the VPC. In the public subnet's route table, add a default route that points to the internet gateway
  • C. Place the EC2 instances in a private subnet. Create an interface VPC endpoint for Amazon SQS. Create gateway VPC endpoints for Amazon S3 and DynamoDB.
  • D. Place the EC2 instances in a private subnet. Create a gateway VPC endpoint for Amazon SQS. Create interface VPC endpoints for Amazon S3 and DynamoDB.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by zaazanuna at March 19, 2023, 12:38 a.m.
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woorkim
2 months ago
YES, C!!!!!
upvoted 1 times
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Raphaello
8 months, 2 weeks ago
Selected Answer: C
C is the correct answer.
upvoted 1 times
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tromyunpak
9 months ago
C is the right answer as using gw endpoints for s3 and dynamodb and interface endpoint for sqs and the ec2 are in the private subnet. A is wrong due to the public subnet. B is a good option but not cost effective so the answer is wrong. D is wrong due to the gateway endpoint of sqs (only s3 and dynamodb are gateway endpoints)
upvoted 2 times
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marfee
10 months, 2 weeks ago
I think that it's correcty answer is C.
upvoted 1 times
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Arad
1 year, 1 month ago
Selected Answer: C
definitely C.
upvoted 3 times
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habros
1 year, 2 months ago
Selected Answer: C
SQS: no choice, only interface endpoint (cost $ but negligible compared to S3/DynamoDB) S3/DynamoDB: Gateway endpoints $0.00 for endpoint use. C all the way
upvoted 3 times
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neotusca
1 year, 2 months ago
C : SQS interface endpoint(free), S3 & DynamoDB gateway endpoint D : SQS gateway endpoint, S3 & DynamoDB interface endpoint(free) think about data size of SQS vs data size of S3 & DynamoDB
upvoted 2 times
neotusca
1 year, 2 months ago
The comment above is wrong, I hope it gets deleted.
upvoted 1 times
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neotusca
1 year, 2 months ago
Sorry.. The 'free' sign is reversed.
upvoted 1 times
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Scunningham99
1 year, 3 months ago
C interface endpoint https://docs.aws.amazon.com/vpc/latest/privatelink/aws-services-privatelink-support.html gateway not supported service https://docs.aws.amazon.com/vpc/latest/privatelink/gateway-endpoints.html
upvoted 1 times
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Mishranihal737
1 year, 4 months ago
Answer will be C - > To access S3 , Dynamo DB you need Gateway Endpoints.
upvoted 1 times
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ITgeek
1 year, 8 months ago
Selected Answer: C
C is the most Cost effective and less complicated
upvoted 3 times
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zaazanuna
1 year, 8 months ago
Actually D. because Gateway Endpoint is free of charge vs Interface Endpoint
upvoted 1 times
ohcan
1 year, 8 months ago
GW endpoint works only with S3 and DynamoDB.
upvoted 5 times
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helloworldabc
1 year, 9 months ago
CCCCCCCCCC
upvoted 2 times
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zaazanuna
1 year, 9 months ago
C - correct.
upvoted 3 times
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