Which metrics should the data scientist use to optimize the model?

2025-10-02
By:
In: MLS-C01
With: 1 Comment

A financial company is trying to detect credit card fraud.The company observed that, on average, 2% of credit card transactions were fraudulent.A data scientist trained a classifier on a year’s worth of credit card transactions data.The model needs to identify the fraudulent transactions (positives) from the regular ones(negatives).The company’s goal is to accurately capture as many positives as possible.Which metrics should the data scientist use to optimize the model? (Choose two.)Read More →

Will the console allow the user to delete the VPC?

2025-10-02
By:
In: SOA-C01
With: 1 Comment

A user has created a VPC with CIDR 20.0.0.0/16 using the wizard.The user has created public and VPN only subnets along with hardware VPN access to connect to the user’s data center.The user has not yet launched any instance as well as modified or deleted any setup.He wants to delete this VPC from the console.Will the console allow the user to delete the VPC?Read More →

The environment has the following configuration:✑ The instance is allowed the kms:Decrypt action in its IAM role for all resources✑ The AWS KMS CMK status is set to enabled✑ The instance can communicate with the KMS API using a configured VPC endpointWhat is causing the issue?

2025-10-02
By:
In: SCS-C01
With: 1 Comment

An Amazon EC2 instance is denied access to a newly created AWS KMS CMK used for decrypt actions.The environment has the following configuration:✑ The instance is allowed the kms:Decrypt action in its IAM role for all resources✑ The AWS KMS CMK status is set to enabled✑ The instance can communicate with the KMS API using a configured VPC endpointWhat is causing the issue?Read More →

Which solution meets these requirements MOST cost-effectively?

2025-10-02
By:
In: SAP-C01
With: 1 Comment

A company is running several large workloads on Amazon EC2 instances.Each EC2 instance has multiple Amazon Elastic Block Store (Amazon EBS) volumes attached to it.Once each day, an AWS Lambda function invokes the creation of EBS volume snapshots.These snapshots accumulate until an administrator manually purges them.The company must maintain backups for a minimum of 30 days.A solutions architect needs to reduce the costs of this process.Which solution meets these requirements MOST cost-effectively?Read More →

Which combination of steps should the DevOps engineer take to meet these requirements?

2025-10-02
By:
In: DOP-C01
With: 1 Comment

A DevOps engineer at a company is supporting an AWS environment in which all users use AWS IAM identity Center (AWS Single Sign-On).The company wants to immediately disable credentials of any new IAM user and wants the security team to receive a notification.Which combination of steps should the DevOps engineer take to meet these requirements? (Choose three.)Read More →

Which AWS database solution will meet these requirements?

2025-10-02
By:
In: DBS-C01
With: 1 Comment

A company’s application team needs to select an AWS managed database service to store application and user data.The application team is familiar with MySQL but is open to new solutions.The application and user data is stored in 10 tables and is de-normalized.The application will access this data through an API layer using a unique ID in each table.The company expects the traffic to be light at first, but the traffic will increase to thousands of transactions each second within the first year.The database service must support active reads and writes in multiple AWS Regions at the same time.Query response times need to be less than 100 ms.Which AWS database solution will meet these requirements?Read More →

How should a solutions architect design the architecture to meet these requirements?

2025-10-02
By:
In: SAA-C02
With: 1 Comment

A company is migrating a distributed application to AWS.The application serves variable workloads.The legacy platform consists of a primary server that coordinates jobs across multiple compute nodes.The company wants to modernize the application with a solution that maximizes resiliency and scalability.How should a solutions architect design the architecture to meet these requirements?Read More →