Cloud Practice

#271 (Accuracy: 100% / 4 votes)

A solutions architect is designing a workload that will store hourly energy consumption by business tenants in a building. The sensors will feed a database through HTTP requests that will add up usage for each tenant. The solutions architect must use managed services when possible. The workload will receive more features in the future as the solutions architect adds independent components.

Which solution will meet these requirements with the LEAST operational overhead?

A. Use Amazon API Gateway with AWS Lambda functions to receive the data from the sensors, process the data, and store the data in an Amazon DynamoDB table.
B. Use an Elastic Load Balancer that is supported by an Auto Scaling group of Amazon EC2 instances to receive and process the data from the sensors. Use an Amazon S3 bucket to store the processed data.
C. Use Amazon API Gateway with AWS Lambda functions to receive the data from the sensors, process the data, and store the data in a Microsoft SQL Server Express database on an Amazon EC2 instance.
D. Use an Elastic Load Balancer that is supported by an Auto Scaling group of Amazon EC2 instances to receive and process the data from the sensors. Use an Amazon Elastic File System (Amazon EFS) shared file system to store the processed data.

#272 (Accuracy: 100% / 7 votes)

A developer has an application that uses an AWS Lambda function to upload files to Amazon S3 and needs the required permissions to perform the task. The developer already has an IAM user with valid IAM credentials required for Amazon S3.

What should a solutions architect do to grant the permissions?

A. Add required IAM permissions in the resource policy of the Lambda function.
B. Create a signed request using the existing IAM credentials in the Lambda function.
C. Create a new IAM user and use the existing IAM credentials in the Lambda function.
D. Create an IAM execution role with the required permissions and attach the IAM role to the Lambda function.

#273 (Accuracy: 90% / 17 votes)

A company hosts a web application on multiple Amazon EC2 instances. The EC2 instances are in an Auto Scaling group that scales in response to user demand. The company wants to optimize cost savings without making a long-term commitment.

Which EC2 instance purchasing option should a solutions architect recommend to meet these requirements?

A. Dedicated Instances only
B. On-Demand Instances only
C. A mix of On-Demand Instances and Spot Instances
D. A mix of On-Demand Instances and Reserved Instances

#274 (Accuracy: 91% / 7 votes)

A software company needs to upgrade a critical web application. The application currently runs on a single Amazon EC2 instance that the company hosts in a public subnet. The EC2 instance runs a MySQL database. The application's DNS records are published in an Amazon Route 53 zone.

A solutions architect must reconfigure the application to be scalable and highly available. The solutions architect must also reduce MySQL read latency.

Which combination of solutions will meet these requirements? (Choose two.)

A. Launch a second EC2 instance in a second AWS Region. Use a Route 53 failover routing policy to redirect the traffic to the second EC2 instance.
B. Create and configure an Auto Scaling group to launch private EC2 instances in multiple Availability Zones. Add the instances to a target group behind a new Application Load Balancer.
C. Migrate the database to an Amazon Aurora MySQL cluster. Create the primary DB instance and reader DB instance in separate Availability Zones.
D. Create and configure an Auto Scaling group to launch private EC2 instances in multiple AWS Regions. Add the instances to a target group behind a new Application Load Balancer.
E. Migrate the database to an Amazon Aurora MySQL cluster with cross-Region read replicas.

#275 (Accuracy: 100% / 3 votes)

The DNS provider that hosts a company's domain name records is experiencing outages that cause service disruption for a website running on AWS. The company needs to migrate to a more resilient managed DNS service and wants the service to run on AWS.

What should a solutions architect do to rapidly migrate the DNS hosting service?

A. Create an Amazon Route 53 public hosted zone for the domain name. Import the zone file containing the domain records hosted by the previous provider.
B. Create an Amazon Route 53 private hosted zone for the domain name. Import the zone file containing the domain records hosted by the previous provider.
C. Create a Simple AD directory in AWS. Enable zone transfer between the DNS provider and AWS Directory Service for Microsoft Active Directory for the domain records.
D. Create an Amazon Route 53 Resolver inbound endpoint in the VPC. Specify the IP addresses that the provider's DNS will forward DNS queries to. Configure the provider's DNS to forward DNS queries for the domain to the IP addresses that are specified in the inbound endpoint.

#276 (Accuracy: 100% / 5 votes)

A company runs a self-managed Microsoft SQL Server on Amazon EC2 instances and Amazon Elastic Block Store (Amazon EBS). Daily snapshots are taken of the EBS volumes.

Recently, all the company’s EBS snapshots were accidentally deleted while running a snapshot cleaning script that deletes all expired EBS snapshots. A solutions architect needs to update the architecture to prevent data loss without retaining EBS snapshots indefinitely.

Which solution will meet these requirements with the LEAST development effort?

A. Change the IAM policy of the user to deny EBS snapshot deletion.
B. Copy the EBS snapshots to another AWS Region after completing the snapshots daily.
C. Create a 7-day EBS snapshot retention rule in Recycle Bin and apply the rule for all snapshots.
D. Copy EBS snapshots to Amazon S3 Standard-Infrequent Access (S3 Standard-IA).

#277 (Accuracy: 100% / 2 votes)

A company is building an application in the AWS Cloud. The application is hosted on Amazon EC2 instances behind an Application Load Balancer (ALB). The company uses Amazon Route 53 for the DNS.

The company needs a managed solution with proactive engagement to detect against DDoS attacks.

Which solution will meet these requirements?

A. Enable AWS Config. Configure an AWS Config managed rule that detects DDoS attacks.
B. Enable AWS WAF on the ALCreate an AWS WAF web ACL with rules to detect and prevent DDoS attacks. Associate the web ACL with the ALB.
C. Store the ALB access logs in an Amazon S3 bucket. Configure Amazon GuardDuty to detect and take automated preventative actions for DDoS attacks.
D. Subscribe to AWS Shield Advanced. Configure hosted zones in Route 53. Add ALB resources as protected resources.

#278 (Accuracy: 100% / 4 votes)

A company recently migrated a monolithic application to an Amazon EC2 instance and Amazon RDS. The application has tightly coupled modules. The existing design of the application gives the application the ability to run on only a single EC2 instance.

The company has noticed high CPU utilization on the EC2 instance during peak usage times. The high CPU utilization corresponds to degraded performance on Amazon RDS for read requests. The company wants to reduce the high CPU utilization and improve read request performance.

Which solution will meet these requirements?

A. Resize the EC2 instance to an EC2 instance type that has more CPU capacity. Configure an Auto Scaling group with a minimum and maximum size of 1. Configure an RDS read replica for read requests.
B. Resize the EC2 instance to an EC2 instance type that has more CPU capacity. Configure an Auto Scaling group with a minimum and maximum size of 1. Add an RDS read replica and redirect all read/write traffic to the replica.
C. Configure an Auto Scaling group with a minimum size of 1 and maximum size of 2. Resize the RDS DB instance to an instance type that has more CPU capacity.
D. Resize the EC2 instance to an EC2 instance type that has more CPU capacity. Configure an Auto Scaling group with a minimum and maximum size of 1. Resize the RDS DB instance to an instance type that has more CPU capacity.

#279 (Accuracy: 100% / 2 votes)

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.

#280 (Accuracy: 100% / 1 votes)

A solutions architect is designing the cloud architecture for a new stateless application that will be deployed on AWS. The solutions architect created an Amazon Machine Image (AMI) and launch template for the application.

Based on the number of jobs that need to be processed, the processing must run in parallel while adding and removing application Amazon EC2 instances as needed. The application must be loosely coupled. The job items must be durably stored.

Which solution will meet these requirements?

A. Create an Amazon Simple Notification Service (Amazon SNS) topic to send the jobs that need to be processed. Create an Auto Scaling group by using the launch template with the scaling policy set to add and remove EC2 instances based on CPU usage.
B. Create an Amazon Simple Queue Service (Amazon SQS) queue to hold the jobs that need to be processed. Create an Auto Scaling group by using the launch template with the scaling policy set to add and remove EC2 instances based on network usage.
C. Create an Amazon Simple Queue Service (Amazon SQS) queue to hold the jobs that need to be processed. Create an Auto Scaling group by using the launch template with the scaling policy set to add and remove EC2 instances based on the number of items in the SQS queue.
D. Create an Amazon Simple Notification Service (Amazon SNS) topic to send the jobs that need to be processed. Create an Auto Scaling group by using the launch template with the scaling policy set to add and remove EC2 instances based on the number of messages published to the SNS topic.

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