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SAA-C01 PDF DEMO:
QUESTION NO: 1
An application publishes Amazon SNS messages in response to several events. An AWS
Lambda function subscribes to these messages. Occasionally the function will fail while processing a message, so the original event message must be preserved for root cause analysis.
What architecture will meet these requirements without changing the workflow?
A. Configure Lambda to write failures to an SQS Dead Letter Queue.
B. Configure a Dead Letter Queue for the Amazon SNS topic.
C. Configure the Amazon SNS topic to invoke the Lambda function synchronously.
D. Subscribe an Amazon SQS queue to the Amazon SNS topic and trigger the Lambda function from the queue.
Answer: B
Explanation
https://aws.amazon.com/about-aws/whats-new/2019/11/amazon-sns-adds-support-for-dead-letter- queues-dlq/
https://docs.aws.amazon.com/lambda/latest/dg/with-sqs.html
QUESTION NO: 2
A Solutions Architect is considering possible options for improving the security of the data on an Amazon EBS volume attached to an Amazon EC2 instance.
Which solution will improve the security of the data?
A. Use AWS KMS to encrypt the EBS volume
B. Migrate the sensitive data to an instance store volume
C. Use Amazon single sign-on to control login access to the EC2 instance
D. Create an 1AM policy that restricts read and write access to the volume
Answer: A
Explanation
https://docs.aws.amazon.com/kms/latest/developerguide/services-ebs.html
"Using CMKs and Data Keys
When you create an encrypted Amazon EBS volume, you specify an AWS KMS customer master key
(CMK). By default, Amazon EBS uses the AWS managed CMK for Amazon EBS in your account.
However, you can specify a customer managed CMK."
QUESTION NO: 3
What conditions could cause a Multi-AZ Amazon RDS failover to occur? (Choose two.)
A. An Availability Zone becomes unavailable
B. The RDS instance is stopped manually
C. A replica of the RDS instance is created in a different region
D. A failure of the primary database instance
E. Another master user is created
Answer: A,D
Explanation
https://docs.aws.amazon.com/en_pv/AmazonRDS/latest/UserGuide/Concepts.MultiAZ.html
QUESTION NO: 4
A company has a web application running in a Docker container that connects to a MySQL server in an on-premises data center. The deployment and maintenance of this application are becoming time-consuming and slowing down new feature releases. The company wants to migrate the application to AWS and use services that helps facilitate infrastructure management and deployment.
Which architectures should the company consider on AWS? (Choose two.)
A. AWS Elastic Beanstalk Docker Single Container for the web application, and an Amazon RDS for
MySQL for the database.
B. Amazon ECS for the web application, and an Amazon RDS for MySQL for the database.
C. AWS CloudFormation with Lambda Custom Resources running in a VPC for the web application, and an Amazon RDS for MySQL database.
D. AWS CloudFormation with Lambda Custom Resources without VPC for the web application, and an Amazon RDS for MySQL database.
E. AWS Elastic Beanstalk Docker Multi-container either for the web application or database.
Answer: A,C
Explanation
Both helps facilitate infrastructure management and deployment. Check out this article on "Why Use
AWS Lambda in a Custom VPC?": https://aws.amazon.com/blogs/apn/why-use-aws-lambda-in-a- custom-vpc/
QUESTION NO: 5
A media company must store 10 TB of audio recordings. Retrieval happens infrequently and requestors agree on an 8-hour turnaround time.
What is the MOST cost-effective solution to store the files?
A. EBS Cold HDD (sc1)
B. EBS Throughput Optimized HDD (st1)
C. Amazon Glacier
D. Amazon S3 Standard - Infrequent Access (Standard - IA)
Answer: C
Explanation
https://docs.aws.amazon.com/amazonglacier/latest/dev/downloading-an-archive-two-steps.html
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Updated: May 28, 2022