QUESTION: 117

A company is storing 100 GB of log data in .csv format in an Amazon S3 bucket. SQL developers want to query this data and generate graphs to visualize it. The SQL developers also need an efficient, automated way to store metadata from the .csv file.

Which combination of steps will meet these requirements with the LEAST amount of effort? (Choose three.)

Filter the data through AWS X-Ray to visualize the data.
Filter the data through Amazon QuickSight to visualize the data.
Query the data with Amazon Athena.
Query the data with Amazon Redshift.
Use the AWS Glue Data Catalog as the persistent metadata store.
Use Amazon DynamoDB as the persistent metadata store.

Answer(s): B,C,E

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QUESTION: 118

A company deploys its corporate infrastructure on AWS across multiple AWS Regions and Availability Zones. The infrastructure is deployed on Amazon EC2 instances and connects with AWS IoT Greengrass devices. The company deploys additional resources on on-premises servers that are located in the corporate headquarters.

The company wants to reduce the overhead involved in maintaining and updating its resources. The company’s DevOps team plans to use AWS Systems Manager to implement automated management and application of patches. The DevOps team confirms that Systems Manager is available in the Regions that the resources are deployed in. Systems Manager also is available in a Region near the corporate headquarters.

Which combination of steps must the DevOps team take to implement automated patch and configuration management across the company’s EC2 instances, IoT devices, and on-premises infrastructure? (Choose three.)

Apply tags to all the EC2 instances, AWS IoT Greengrass devices, and on-premises servers. Use Systems Manager Session Manager to push patches to all the tagged devices.
Use Systems Manager Run Command to schedule patching for the EC2 instances, AWS IoT Greengrass devices, and on-premises servers.
Use Systems Manager Patch Manager to schedule patching for the EC2 instances, AWS IoT Greengrass devices, and on-premises servers as a Systems Manager maintenance window task.
Configure Amazon EventBridge to monitor Systems Manager Patch Manager for updates to patch baselines. Associate Systems Manager Run Command with the event to initiate a patch action for all EC2 instances, AWS IoT Greengrass devices, and on-premises servers.
Create an IAM instance profile for Systems Manager. Attach the instance profile to all the EC2 instances in the AWS account. For the AWS IoT Greengrass devices and on-premises servers, create an IAM service role for Systems Manager.
Generate a managed-instance activation. Use the Activation Code and Activation ID to install Systems Manager Agent (SSM Agent) on each server in the on-premises environment. Update the AWS IoT Greengrass IAM token exchange role. Use the role to deploy SSM Agent on all the IoT devices.

Answer(s): C,E,F

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QUESTION: 119

A company is testing a web application that runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Auto Scaling group across multiple Availability Zones. The company uses a blue/green deployment process with immutable instances when deploying new software.

During testing, users are being automatically logged out of the application at random times. Testers also report that, when a new version of the application is deployed, all users are logged out. The development team needs a solution to ensure users remain logged in across scaling events and application deployments.

What is the MOST operationally efficient way to ensure users remain logged in?

Enable smart sessions on the load balancer and modify the application to check for an existing session.
Enable session sharing on the load balancer and modify the application to read from the session store.
Store user session information in an Amazon S3 bucket and modify the application to read session information from the bucket.
Modify the application to store user session information in an Amazon ElastiCache cluster.

Answer(s): D

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QUESTION: 120

A DevOps engineer needs to configure a blue/green deployment for an existing three-tier application. The application runs on Amazon EC2 instances and uses an Amazon RDS database. The EC2 instances run behind an Application Load Balancer (ALB) and are in an Auto Scaling group.

The DevOps engineer has created a launch template and an Auto Scaling group for the blue environment. The DevOps engineer also has created a launch template and an Auto Scaling group for the green environment. Each Auto Scaling group deploys to a matching blue or green target group. The target group also specifies which software, blue or green, gets loaded on the EC2 instances. The ALB can be configured to send traffic to the blue environment’s target group or the green environment’s target group. An Amazon Route 53 record for www.example.com points to the ALB.

The deployment must move traffic all at once between the software on the blue environment’s EC2 instances to the newly deployed software on the green environment’s EC2 instances.

What should the DevOps engineer do to meet these requirements?

Start a rolling restart of the Auto Scaling group for the green environment to deploy the new software on the green environment’s EC2 instances. When the rolling restart is complete, use an AWS CLI command to update the ALB to send traffic to the green environment’s target group.
Use an AWS CLI command to update the ALB to send traffic to the green environment’s target group. Then start a rolling restart of the Auto Scaling group for the green environment to deploy the new software on the green environment’s EC2 instances.
Update the launch template to deploy the green environment’s software on the blue environment’s EC2 instances. Keep the target groups and Auto Scaling groups unchanged in both environments. Perform a rolling restart of the blue environment’s EC2 instances.
Start a rolling restart of the Auto Scaling group for the green environment to deploy the new software on the green environment’s EC2 instances. When the rolling restart is complete, update the Route 53 DNS to point to the green environment’s endpoint on the ALB.

Answer(s): A

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