What is the MOST effective way to encode this categorical feature into a numeric feature?

2026-03-29
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In: MLS-C01
With: 2 Comments

A medical device company is building a machine learning (ML) model to predict the likelihood of device recall based on customer data that the company collects from a plain text survey.One of the survey questions asks which medications the customer is taking.The data for this field contains the names of medications that customers enter manually.Customers misspell some of the medication names.The column that contains the medication name data gives a categorical feature with high cardinality but redundancy.What is the MOST effective way to encode this categorical feature into a numeric feature?Read More →

How should a solutions architect address this issue?

2026-03-29
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In: SAA-C02
With: 2 Comments

A company allows its developers to attach existing IAM policies to existing IAM roles to enable faster experimentation and agility.However, the security operations team is concerned that the developers could attach the existing administrator policy, which would allow the developers to circumvent any other security policies.How should a solutions architect address this issue?Read More →

Which solution will meet these requirements MOST cost-effectively?

2026-03-29
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In: DBS-C01
With: 2 Comments

A database specialist is designing an application to answer one-time queries.The application will query complex customer data and provide reports to end users.These reports can include many fields.The database specialist wants to give users the ability to query the database by using any of the provided fields.The database’s traffic volume will be high but variable during peak times.However, the database will not have much traffic at other times during the day.Which solution will meet these requirements MOST cost-effectively?Read More →

Given that multiple modes of IAM access are present for this EC2 instance, which of the following is correct?

2026-03-29
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In: DVA-C02
With: 2 Comments

An IAM role is attached to an Amazon EC2 instance that explicitly denies access to all Amazon S3 API actions.The EC2 instance credentials file specifies the IAM access key and secret access key, which allow full administrative access.Given that multiple modes of IAM access are present for this EC2 instance, which of the following is correct?Read More →

Which solution will meet these requirements in the MOST operationally efficient manner?

2026-03-29
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In: DOP-C02
With: 2 Comments

A company manages 500 AWS accounts that are in an organization in AWS Organizations.The company discovers many unattached Amazon Elastic Block Store (Amazon EBS) volumes in all the accounts.The company wants to automatically tag the unattached EBS volumes for investigation.A DevOps engineer needs to deploy an AWS Lambda function to all the AWS accounts.The Lambda function must run every 30 minutes to tag all the EBS volumes that have been unattached for a period of 7 days or more.Which solution will meet these requirements in the MOST operationally efficient manner?Read More →

Which solution meets these requirements?

2026-03-29
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In: SOA-C02
With: 2 Comments

A SysOps administrator is re-architecting an application.The SysOps administrator has moved the database from a public subnet, where the database used a public endpoint, into a private subnet to restrict access from the public network.After this change, an AWS Lambda function that requires read access to the database cannot connect to the database.The SysOps administrator must resolve this issue without compromising security.Which solution meets these requirements?Read More →

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

2026-03-29
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In: SAP-C01
With: 2 Comments

A retail company has a small ecommerce web application that uses an Amazon RDS for PostgreSQL DB instance.The DB instance is deployed with the Multi-AZ option turned on.Application usage recently increased exponentially, and users experienced frequent HTTP 503 errors.Users reported the errors, and the company’s reputation suffered.The company could not identify a definitive root cause.The company wants to improve its operational readiness and receive alerts before users notice an incident.The company also wants to collect enough information to determine the root cause of any future incident.Which solution will meet these requirements with the LEAST operational overhead?Read More →

Which of the following methods will ensure that the data is unreadable by anyone else?

2026-03-29
By:
In: SCS-C01
With: 2 Comments

Example.com hosts its internal document repository on Amazon EC2 instances.The application runs on EC2 instances and previously stored the documents on encrypted Amazon EBS volumes.To optimize the application for scale, example.com has moved the files to Amazon S3.The security team has mandated that all the files are securely deleted from the EBS volume, and it must certify that the data is unreadable before releasing the underlying disks.Which of the following methods will ensure that the data is unreadable by anyone else?Read More →