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.

Comment: *

Name: *

Email: *

Verification: *

A company's order fulfillment service uses a MySQL database The database needs to support a large number of concurrent queries and transactions Developers are spending time patching and tuning the database This is causing delays in releasing new product features The company wants to use cloud-based services to help address this new challenge The solution must allow the developers to migrate the database with little or no code changes and must optimize performance Which service should a solutions architect use to meet these requirements'?

• A.MySQL on Amazon EC2
• B.Amazon ElastiCache
• C.Amazon DynamoDB
• D.Amazon Aurora

Comment: *

Name: *

Email: *

Verification: *

An application runs on Amazon EC2 instances across multiple Availability Zones. The instances run in an Amazon EC2 Auto Scaling group behind an Application Load Balancer. The application performs best when the CPU utilization of the EC2 instances is at or near 40%.
What should a solutions architect do to maintain the desired performance across all instances in the group?

• A.Use a simple scaling policy to dynamically scale the Auto Scaling group.
• B.Use a target tracking policy to dynamically scale the Auto Scaling group.
• C.Use an AWS Lambda function to update the desired Auto Scaling group capacity.
• D.Use scheduled scaling actions to scale up and scale down the Auto Scaling group.

Comment: *

Name: *

Email: *

Verification: *

A company has a three-tier environment on AWS that ingests sensor data from its users' devices. The traffic flows through a Network Load Balancer (NLB) then to Amazon EC2 instances for the web tier, and finally to EC2 instances for the application tier that makes database calls What should a solutions architect do to improve the security of data in transit to the web tier?

• A.Configure AWS Shield Advanced and enable AWS WAF on the NLB
• B.Configure a TLS listener and add the server certificate on the NLB.
• C.Encrypt the Amazon Elastic Block Store (Amazon EBS) volume on the EC2 instances using AWS Key Management Service (AWS KMS)
• D.Change the load balancer to an Application Load Balancer and attach AWS WAF to it.

Comment: *

Name: *

Email: *

Verification: *

A company offers a food delivery service that is growing rapidly Because of the growth the company's order processing system is experiencing scaling problems during peak traffic hours. The current architecture includes the following;
* A group of Amazon EC2 instances that run in an Amazon EC2 Auto Scaling group to collect orders from the application
* Another group of EC2 instances that run in an Amazon EC2 Auto Scaling group to fulfill orders The order collection process occurs quickly, but the order fulfillment process can take longer Data must not be lost because of a scaling event A solutions architect must ensure that the order collection process and the order fulfillment process can both scale properly during peak traffic hours The solution must optimize utilization of the company's AWS resources Which solution meets these requirements'?

• A.Use Amazon CloudWatch metrics to monitor the CPU of each instance in the Auto Scaling groups.
  Configure each Auto Scaling group's minimum capacity according to peak workload values
• B.Provision two Amazon Simple Queue Service (Amazon SQS) queues one for order collection and another for order fulfillment Configure the EC2 instances to poll their respective queue Scale the Auto Scaling groups based on notifications that the queues send
• C.Provision two Amazon Simple Queue Service (Amazon SQS) queues one for order collection and another for order fulfillment. Configure the EC2 instances to poll their respective queue. Create a metric based on a backlog per instance calculation Scale the Auto Scaling groups based on this metric.
• D.Use Amazon CloudWatch metrics to monitor the CPU of each instance in the Auto Scaling groups Configure a CloudWatch alarm to invoke an Amazon Simple Notification Service (Amazon SNS) topic that creates additional Auto Scaling groups on demand

Comment: *

Name: *

Email: *

Verification: *