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AWS Certified Solutions Architect - Professional Questions and Answers

Question 109

A company is planning a large event where a promotional offer will be introduced. The company ' s website is hosted on AWS and backed by an Amazon RDS for PostgreSQL DB instance. The website explains the promotion and includes a sign-up page that collects user information andpreferences. Management expects large and unpredictable volumes of traffic periodically, which will create many database writes. A solutions architect needs to build a solution that does not change the underlying data model and ensures that submissions are not dropped before they are committed to the database.

Which solutions meets these requirements?

Options:

Immediately before the event, scale up the existing DB instance to meet the anticipated demand. Then scale down after the event.

Use Amazon SQS to decouple the application and database layers. Configure an AWS Lambda function to write items from the queue into the database.

Migrate to Amazon DynamoDB and manage throughput capacity with automatic scaling.

Use Amazon ElastiCache (Memcached) to increase write capacity to the DB instance.

Question 110

An environmental company is deploying sensors in major cities throughout a country to measure air quality The sensors connect to AWS loT Core to ingest timesheets data readings. The company stores the data in Amazon DynamoDB

For business continuity the company must have the ability to ingest and store data in two AWS Regions

Which solution will meet these requirements?

Options:

Create an Amazon Route 53 alias failover routing policy with values for AWS loT Core data endpoints in both Regions Migrate data to Amazon Aurora global tables

Create a domain configuration for AWS loT Core in each Region Create an Amazon Route 53 latency-based routing policy Use AWS loT Core data endpoints in both Regions as values Migrate the data to Amazon MemoryDB for Radis and configure Cross-Region replication

Create a domain configuration for AWS loT Core in each. Region Create an AmazonRoute 53 health check that evaluates domain configuration health Create a failover routing policy with values for the domain name from the AWS loT Core domain configurations Update the DynamoDB table to a global table

Create an Amazon Route 53 latency-based routing policy. Use AWS loT Core data endpoints in both Regions as values. Configure DynamoDB streams and Cross-Region data replication

Question 111

A manufacturing company is building an inspection solution for its factory. The company has IPcameras at the end of each assembly line. The company has used Amazon SageMaker to train a machine learning (ML) model to identify common defects from still images.

The company wants to provide local feedback to factory workers when a defect is detected. The company must be able to provide this feedback even if the factory’s internet connectivity is down. The company has a local Linux server that hosts an API that provides local feedback to the workers.

How should the company deploy the ML model to meet these requirements?

Options:

Set up an Amazon Kinesis video stream from each IP camera to AWS. Use Amazon EC2 instances to take still images of the streams. Upload the images to an Amazon S3 bucket. Deploy a SageMaker endpoint with the ML model. Invoke an AWS Lambda function to call the inference endpoint when new images are uploaded. Configure the Lambda function to call the local API when a defect is detected.

Deploy AWS IoT Greengrass on the local server. Deploy the ML model to the Greengrass server. Create a Greengrass component to take still images from the cameras and run inference. Configure the component to call the local API when a defect is detected.

Order an AWS Snowball device. Deploy a SageMaker endpoint the ML model and an Amazon EC2 instance on the Snowball device. Take still images from the cameras. Run inference from the EC2 instance. Configure the instance to call the local API when a defect is detected.

Deploy Amazon Monitron devices on each IP camera. Deploy an Amazon Monitron Gateway on premises. Deploy the ML model to the Amazon Monitron devices. Use Amazon Monitron health state alarms to call the local API from an AWS Lambda function when a defect is detected.

Question 112

A team collects and routes behavioral data for an entire company The company runs a Multi-AZ VPC environment with public subnets, private subnets, and in internet gateway Each public subnet also contains a NAT gateway Most of the company ' s applications read from and write to Amazon Kinesis Data Streams. Most of the workloads am in private subnets.

A solutions architect must review the infrastructure The solutions architect needs to reduce costs and maintain the function of the applications The solutions architect uses Cost Explorer and notices that the cost in the EC2-Other category is consistently high A further review shows that NatGateway-Bytes charges are increasing the cost in the EC2-Other category.

What should the solutions architect do to meet these requirements?

Options:

Enable VPC Flow Logs. Use Amazon Athena to analyze the logs for traffic that can be removed. Ensure that security groups are Mocking traffic that is responsible for high costs.

Add an interface VPC endpoint for Kinesis Data Streams to the VPC. Ensure that applications have the correct IAM permissions to use the interface VPC endpoint.

Enable VPC Flow Logs and Amazon Detective Review Detective findings for traffic that is not related to Kinesis Data Streams Configure security groups to block that traffic

Add an interface VPC endpoint for Kinesis Data Streams to the VPC. Ensure that the VPC endpoint policy allows traffic from the applications.

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AWS Certified Solutions Architect - Professional Questions and Answers

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