Amazon Amazon Certifications SAA-C03 Questions & Answers

• Question 1061:

  A company that hosts its web application on AWS wants to ensure all Amazon EC2 instances. Amazon RDS DB instances. and Amazon Redshift clusters are configured with tags. The company wants to minimize the effort of configuring and operating this check.

  What should a solutions architect do to accomplish this?

  A. Use AWS Config rules to define and detect resources that are not properly tagged.

  B. Use Cost Explorer to display resources that are not properly tagged. Tag those resources manually.

  C. Write API calls to check all resources for proper tag allocation. Periodically run the code on an EC2 instance.

  D. Write API calls to check all resources for proper tag allocation. Schedule an AWS Lambda function through Amazon CloudWatch to periodically run the code.

  Correct Answer: A

• Question 1062:

  A company maintains a searchable repository of items on its website. The data is stored in an Amazon RDS for MySQL database table that contains more than 10 million rows The database has 2 TB of General Purpose SSD storage There are millions of updates against this data every day through the company's website

  The company has noticed that some insert operations are taking 10 seconds or longer The company has determined that the database storage performance is the problem

  Which solution addresses this performance issue?

  A. Change the storage type to Provisioned IOPS SSD

  B. Change the DB instance to a memory optimized instance class

  C. Change the DB instance to a burstable performance instance class

  D. Enable Multi-AZ RDS read replicas with MySQL native asynchronous replication.

  Correct Answer: A

  https://aws.amazon.com/ebs/features/ "Provisioned IOPS volumes are backed by solid-state drives (SSDs) and are the highest performance EBS volumes designed for your critical, I/O intensive database applications.

  These volumes are ideal for both IOPS-intensive and throughput-intensive workloads that require extremely low latency."

  https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_Storage.html

• Question 1063:

  A company is preparing to launch a public-facing web application in the AWS Cloud. The architecture consists of Amazon EC2 instances within a VPC behind an Elastic Load Balancer (ELB). A third-party service is used for the DNS. The company's solutions architect must recommend a solution to detect and protect against large-scale DDoS attacks.

  Which solution meets these requirements?

  A. Enable Amazon GuardDuty on the account.

  B. Enable Amazon Inspector on the EC2 instances.

  C. Enable AWS Shield and assign Amazon Route 53 to it.

  D. Enable AWS Shield Advanced and assign the ELB to it.

  Correct Answer: D

  https://aws.amazon.com/shield/faqs/

• Question 1064:

  An image-processing company has a web application that users use to upload images. The application uploads the images into an Amazon S3 bucket. The company has set up S3 event notifications to publish the object creation events to an Amazon Simple Queue Service (Amazon SQS) standard queue. The SQS queue serves as the event source for an AWS Lambda function that processes the images and sends the results to users through email.

  Users report that they are receiving multiple email messages for every uploaded image. A solutions architect determines that SQS messages are invoking the Lambda function more than once, resulting in multiple email messages.

  What should the solutions architect do to resolve this issue with the LEAST operational overhead?

  A. Set up long polling in the SQS queue by increasing the ReceiveMessage wait time to 30 seconds.

  B. Change the SQS standard queue to an SQS FIFO queue. Use the message deduplication ID to discard duplicate messages.

  C. Increase the visibility timeout in the SQS queue to a value that is greater than the total of the function timeout and the batch window timeout.

  D. Modify the Lambda function to delete each message from the SQS queue immediately after the message is read before processing.

  Correct Answer: C

  https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-visibility-timeout.html

  Immediately after a message is received, it remains in the queue. To prevent other consumers from processing the message again, Amazon SQS sets a visibility timeout, a period of time during which Amazon SQS prevents other consumers from receiving and processing the message. The default visibility timeout for a message is 30 seconds. The minimum is 0 seconds. The maximum is 12 hours.

• Question 1065:

  A finance company uses an on-premises search application to collect streaming data from various producers. The application provides real-time updates to search and visualization features.

  The company is planning to migrate to AWS and wants to use an AWS native solution.

  Which solution will meet these requirements?

  A. Use Amazon EC2 instances to ingest and process the data streams to Amazon S3 buckets tor storage. Use Amazon Athena to search the data. Use Amazon Managed Grafana to create visualizations.

  B. Use Amazon EMR to ingest and process the data streams to Amazon Redshift for storage. Use Amazon Redshift Spectrum to search the data. Use Amazon QuickSight to create visualizations.

  C. Use Amazon Elastic Kubernetes Service (Amazon EKS) to ingest and process the data streams to Amazon DynamoDB for storage. Use Amazon CloudWatch to create graphical dashboards to search and visualize the data.

  D. Use Amazon Kinesis Data Streams to ingest and process the data streams to Amazon OpenSearch Service. Use OpenSearch Service to search the data. Use Amazon QuickSight to create visualizations.

  Correct Answer: D