Amazon SOA-C03 Exam Questions Answers

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Page: 1 / 13
Total Questions: 65

Questions & Answers PDF

• Question 1

  

  A company hosts a critical legacy application on two Amazon EC2 instances that are in one Availability Zone. The instances run behind an Application Load Balancer (ALB). The company uses Amazon CloudWatch alarms to send Amazon Simple Notification Service (Amazon SNS) notifications when the ALB health checks detect an unhealthy instance. After a notification, the company's engineers manually restart the unhealthy instance. A CloudOps engineer must configure the application to be highly available and more resilient to failures. Which solution will meet these requirements?

  • Create an Amazon Machine Image (AMI) from a healthy instance. Launch additional instances from the AMI in the same Availability Zone. Add the new instances to the ALB target group.
  • Increase the size of each instance. Create an Amazon EventBridge rule. Configure the EventBridgerule to restart the instances if they enter a failed state.
  • Create an Amazon Machine Image (AMI) from a healthy instance. Launch an additional instance from the AMI in the same Availability Zone. Add the new instance to the ALB target group. Create an AWS Lambda function that runs when an instance is unhealthy. Configure the Lambda function to stop and restart the unhealthy instance.
  • Create an Amazon Machine Image (AMI) from a healthy instance. Create a launch template that uses the AMI. Create an Amazon EC2 Auto Scaling group that is deployed across multiple Availability Zones. Configure the Auto Scaling group to add instances to the ALB target group.

  Reveal Answer Answer: D Next Question

• Question 2

  

  A company hosts a production MySQL database on an Amazon Aurora single-node DB cluster. The database is queried heavily for reporting purposes. The DB cluster is experiencing periods of performance degradation because of high CPU utilization and maximum connections errors. A CloudOps engineer needs to improve the stability of the database.Which solution will meet these requirements?

  • Create an Aurora Replica node. Create an Auto Scaling policy to scale replicas based on CPU utilization. Ensure that all reporting requests use the read-only connection string.
  • Create a second Aurora MySQL single-node DB cluster in a second Availability Zone. Ensure that all reporting requests use the connection string for this additional node.
  • Create an AWS Lambda function that caches reporting requests. Ensure that all reporting requests call the Lambda function.
  • Create a multi-node Amazon ElastiCache cluster. Ensure that all reporting requests use the ElastiCache cluster. Use the database if the data is not in the cache.

  Reveal Answer Answer: A Next Question

• Question 3

  

  A CloudOps engineer has created an AWS Service Catalog portfolio and shared it with a second AWS account in the company, managed by a different CloudOps engineer.Which action can the CloudOps engineer in the second account perform?

  • Add a product from the imported portfolio to a local portfolio.
  • Add new products to the imported portfolio.
  • Change the launch role for the products contained in the imported portfolio.
  • Customize the products in the imported portfolio.

  Reveal Answer Answer: A Next Question

• Question 4

  

  Optimization]An application runs on Amazon EC2 instances that are in an Auto Scaling group. A CloudOps engineer needs to implement a solution that provides a central storage location for errors that the application logs to disk. The solution must also provide an alert when the application logs an error.What should the CloudOps engineer do to meet these requirements?

  • Deploy and configure the Amazon CloudWatch agent on the EC2 instances to log to a CloudWatch log group. Create a metric filter on the target CloudWatch log group. Create a CloudWatch alarm that publishes to an Amazon Simple Notification Service (Amazon SNS) topic that has an email subscription.
  • Create a cron job on the EC2 instances to identify errors and push the errors to an Amazon CloudWatch metric filter. Configure the filter to publish to an Amazon Simple Notification Service (Amazon SNS) topic that has an SMS subscription.
  • Deploy an AWS Lambda function that pushes the errors directly to Amazon CloudWatch Logs. Configure the Lambda function to run every time the log file is updated on disk.
  • Create an Auto Scaling lifecycle hook that invokes an EC2-based script to identify errors. Configure the script to push the error messages to an Amazon CloudWatch log group when the EC2 instances scale in. Create a CloudWatch alarm that publishes to an Amazon Simple Notification Service (Amazon SNS) topic that has an email subscription when the number of error messages exceeds a threshold.

  Reveal Answer Answer: A Next Question

• Question 5

  

  A company runs an application on Amazon EC2 instances behind an Elastic Load Balancer (ELB) in an Auto Scaling group. The application performs well except during a 2-hour period of daily peak traffic, when performance slows.A CloudOps engineer must resolve this issue with minimal operational effort.What should the engineer do?

  • Adjust the minimum capacity of the Auto Scaling group to the size required to meet the increased demand during the 2-hour period.
  • Adjust the launch template that is associated with the Auto Scaling group to be more sensitive to increases in user traffic.
  • Create a scheduled scaling action to scale out the number of EC2 instances shortly before the increase in user traffic occurs.
  • Manually add a few more EC2 instances to the Auto Scaling group to support the increase in user
  • traffic. Enable instance scale-in protection on the Auto Scaling group.

  Reveal Answer Answer: C Next Question

• Question 6

  

  A user working in the Amazon EC2 console increased the size of an Amazon Elastic Block Store (Amazon EBS) volume attached to an Amazon EC2 Windows instance. The change is not reflected in the file system.What should a CloudOps engineer do to resolve this issue?

  • Extend the file system with operating system-level tools to use the new storage capacity.
  • Reattach the EBS volume to the EC2 instance.
  • Reboot the EC2 instance that is attached to the EBS volume.
  • Take a snapshot of the EBS volume. Replace the original volume with a volume that is created from the snapshot.

  Reveal Answer Answer: A Next Question

• Question 7

  

  A company has an application running on EC2 that stores data in an Amazon RDS for MySQL Single-AZ DB instance. The application requires both read and write operations, and the company needs failover capability with minimal downtime.Which solution will meet these requirements?

  • Modify the DB instance to be a Multi-AZ DB instance deployment.
  • Add a read replica in the same Availability Zone where the DB instance is deployed.
  • Add the DB instance to an Auto Scaling group that has a minimum capacity of 2 and a desired capacity of 2.
  • Use RDS Proxy to configure a proxy in front of the DB instance.

  Reveal Answer Answer: A Next Question

• Question 8

  

  A CloudOps engineer configures an application to run on Amazon EC2 instances behind an Application Load Balancer (ALB) in a simple scaling Auto Scaling group with the default settings. The Auto Scaling group is configured to use the RequestCountPerTarget metric for scaling. The CloudOps engineer notices that the RequestCountPerTarget metric exceeded the specified limit twice in 180 seconds.How will the number of EC2 instances in this Auto Scaling group be affected in this scenario?

  • The Auto Scaling group will launch an additional EC2 instance every time the RequestCountPerTarget metric exceeds the predefined limit.
  • The Auto Scaling group will launch one EC2 instance and will wait for the default cooldown period before launching another instance.
  • The Auto Scaling group will send an alert to the ALB to rebalance the traffic and not add new EC2 instances until the load is normalized.
  • The Auto Scaling group will try to distribute the traffic among all EC2 instances before launching another instance.

  Reveal Answer Answer: B Next Question

• Question 9

  

  A company runs an application on Amazon EC2 that connects to an Amazon Aurora PostgreSQL database. A developer accidentally drops a table from the database, causing application errors. Two hours later, a CloudOps engineer needs to recover the data and make the application functional again.Which solution will meet this requirement?

  • Use the Aurora Backtrack feature to rewind the database to a specified time, 2 hours in the past.
  • Perform a point-in-time recovery on the existing database to restore the database to a specified point in time, 2 hours in the past.
  • Perform a point-in-time recovery and create a new database to restore the database to a specified point in time, 2 hours in the past. Reconfigure the application to use a new database endpoint.
  • Create a new Aurora cluster. Choose the Restore data from S3 bucket option. Choose log files up to the failure time 2 hours in the past.

  Reveal Answer Answer: C Next Question

• Question 10

  

  An Amazon EC2 instance is running an application that uses Amazon Simple Queue Service (Amazon SQS) queues. A CloudOps engineer must ensure that the application can read, write, and delete messages from the SQS queues.Which solution will meet these requirements in the MOST secure manner?

  • Create an IAM user with an IAM policy that allows the sqs:SendMessage permission, the sqs:ReceiveMessage permission, and the sqs:DeleteMessage permission to the appropriate queues. Embed the IAM user's credentials in the application's configuration.
  • Create an IAM user with an IAM policy that allows the sqs:SendMessage permission, the sqs:ReceiveMessage permission, and the sqs:DeleteMessage permission to the appropriate queues. Export the IAM user's access key and secret access key as environment variables on the EC2 instance.
  • Create and associate an IAM role that allows EC2 instances to call AWS services. Attach an IAM policy to the role that allows sqs:* permissions to the appropriate queues.
  • Create and associate an IAM role that allows EC2 instances to call AWS services. Attach an IAM policy to the role that allows the sqs:SendMessage permission, the sqs:ReceiveMessage permission, and the sqs:DeleteMessage permission to the appropriate queues.

  Reveal Answer Answer: D Next Question

Page: 1 / 13
Total Questions: 65

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