A Security Engineer is building a Java application that is running on Amazon EC2.The application communicates with an Amazon RDS instance and authenticates with a user name and password.Which combination of steps can the Engineer take to protect the credentials and minimize downtime when the credentials are rotated? (Choose two.)Read More →
A developer needs to write an AWS CloudFormation template on a local machine and deploy a CloudFormation stack to AWS.What must the developer do to complete these tasks?Read More →
The amount of data a company must back up has been increasing, and storage space is quickly running out.There is no budget to purchase new backup software that is capable of backing up data directly to the cloud.What is the MOST cost-effective way to make storage available to the company’s legacy backup system?Read More →
A bank wants to launch a low-rate credit promotion.The bank is located in a town that recently experienced economic hardship.Only some of the bank’s customers were affected by the crisis, so the bank’s credit team must identify which customers to target with the promotion.However, the credit team wants to make sure that loyal customers’ full credit history is considered when the decision is made.The bank’s data science team developed a model that classifies account transactions and understands credit eligibility.The data science team used the XGBoost algorithm to train the model.The team used 7 years of bank transaction historical data for training and hyperparameter tuning over the course of several days.The accuracy of the model is sufficient, but the credit team is struggling to explain accurately why the model denies credit to some customers.The credit team has almost no skill in data science.What should the data science team do to address this issue in the MOST operationally efficient manner?Read More →
A research company runs experiments that are powered by a simulation application and a visualization application.The simulation application runs on Linux and outputs intermediate data to an NFS share every 5 minutes.The visualization application is a Windows desktop application that displays the simulation output and requires an SMB file system.The company maintains two synchronized file systems.This strategy is causing data duplication and inefficient resource usage.The company needs to migrate the applications to AWS without making code changes to either application.Which solution will meet these requirements?Read More →
A company uses Microsoft SQL Server on Amazon RDS in a Multi-AZ deployment as the database engine for its application.The company was recently acquired by another company.A database specialist must rename the database to follow a new naming standard.Which combination of steps should the database specialist take to rename the database? (Choose two.)Read More →
A production account has a requirement that any Amazon EC2 instance that has been logged into manually must be terminated within 24 hours.All applications in the production account are using Auto Scaling groups with Amazon CloudWatch Logs agent configured.How can this process be automated?Read More →
A company is using an Amazon CloudWatch alarm to monitor the FreeLocalStorage metric for an Amazon Aurora PostgreSQL production database.The alarm goes into ALARM state and indicates that the database is running low on temporary storage.A SysOps administrator discovers that a weekly report is using most of the temporary storage that is currently allocated.What should the SysOps administrator do to solve this problem?Read More →
A company is using AWS CloudFormation as its deployment tool for all application.It stages all application binaries and templates within Amazon S3 bucket with versioning enabled.Developers have access to an Amazon EC2 instance that hosts the integrated development (IDE).The Developers download the application binaries from Amazon S3 to the EC2 instance, make changes, and upload the binaries to an S3 bucket after running the unit tests locally.The developers want to improve the existing deployment mechanism and implement CI/CD using AWS CodePipeline.The developers have the following requirements:✑ Use AWS CodeCommit for source control.✑ Automate unit testing and security scanning.✑ Alert the Developers when unit tests fail.✑ Turn application features on and off, and customize deployment dynamically as part of CI/CD.✑ Have the lead Developer provide approval before deploying an application.Which solution will meet these requirements?Read More →
A security engineer is configuring a mechanism to send an alert when three or more failed sign-in attempts to the AWS Management Console occur during a 5-minute period.The security engineer creates a trail in AWS CloudTrail to assist in this work.Which solution will meet these requirements?Read More →
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