A company is hosting a critical application on a single Amazon EC2 instance. The application uses an Amazon ElastiCache for Redis single-node cluster for an in-memory data store. The application uses an Amazon RDS for MariaDB DB instance for a relational database. For the application to function, each piece of the infrastructure must be healthy and must be in an active state.
A solutions architect needs to improve the application's architecture so that the infrastructure can automatically recover from failure with the least possible downtime.
Which combination of steps will meet these requirements? (Choose three.)
ACD
A company runs an unauthenticated static website (www.example.com) that includes a registration form for users. The website uses Amazon S3 for hosting and uses Amazon CloudFront as the content delivery network with AWS WAF configured. When the registration form is submitted, the website calls an Amazon API Gateway API endpoint that invokes an AWS Lambda function to process the payload and forward the payload to an external API call.
During testing, a solutions architect encounters a cross-origin resource sharing (CORS) error. The solutions architect confirms that the CloudFront distribution origin has the Access-Control-Allow-Origin header set to www.example.com.
What should the solutions architect do to resolve the error?
C
A company is using an organization in AWS Organizations to manage AWS accounts. For each new project, the company creates a new linked account. After the creation of a new account, the root user signs in to the new account and creates a service request to increase the service quota for Amazon EC2 instances. A solutions architect needs to automate this process.
Which solution will meet these requirements with the LEAST operational overhead?
B
A company wants to record key performance indicators (KPIs) from its application as part of a strategy to convert to a user-based licensing schema. The application is a multi-tier application with a web-based UI. The company saves all log files to Amazon CloudWatch by using the CloudWatch agent. All logins to the application are saved in a log file.
As part of the new license schema, the company needs to find out how many unique users each client has on a daily basis, weekly basis, and monthly basis.
Which solution will provide this information with the LEAST change to the application?
C
A company's solutions architect is reviewing a web application that runs on AWS. The application references static assets in an Amazon S3 bucket in the us-east-1 Region. The company needs resiliency across multiple AWS Regions. The company already has created an S3 bucket in a second Region.
Which solution will meet these requirements with the LEAST operational overhead?
C
A company uses AWS Organizations to manage its AWS accounts. A solutions architect must design a solution in which only administrator roles are allowed to use IAM actions. However, the solutions architect does not have access to all the AWS accounts throughout the company.
Which solution meets these requirements with the LEAST operational overhead?
C
A company is using many Amazon S3 buckets to hold confidential data. Some of the S3 buckets are riot encrypted. The company wants to use AWS Key Management Service (AWS KMS) customer managed keys to encrypt the S3 buckets. The company wants a solution that will detect any S3 buckets that are not encrypted and apply AWS KMS encryption to each noncompliant S3 bucket.
Which solution will meet these requirements with the LEAST operational overhead?
C
A company needs to migrate two individual applications from on premises to AWS:
• The first application is a legacy custom application that is hosted on a physical Windows server. The application source code is no longer available. The application has little documentation, has hardcoded operating system configuration settings, and is used by an external third party.
• The second application is an IBM Db2 database that is hosted on a single Linux VM that uses network-attached storage (NAS) to store the database data. The company uses this database internally for employee records.
The applications are hosted in a data center that the company plans to decommission in 90 days. Where possible, the company must use managed AWS services.
Which actions for migration should a solutions architect recommend to meet these requirements? (Choose two.)
AE
A solutions architect needs to improve an application that is hosted in the AWS Cloud. The application uses an Amazon Aurora MySQL DB instance that is experiencing overloaded connections. Most of the application's operations insert records into the database. The application currently stores credentials in a text-based configuration file.
The solutions architect needs to implement a solution so that the application can handle the current connection load. The solution must keep the credentials secure and must provide the ability to rotate the credentials automatically on a regular basis.
Which solution will meet these requirements?
C
A company wants to establish a dedicated connection between its on-premises infrastructure and AWS. The company is setting up a 1 Gbps AWS Direct Connect connection to its account VPC. The architecture includes a transit gateway and a Direct Connect gateway to connect multiple VPCs and the on-premises infrastructure.
The company must connect to VPC resources over a transit VIF by using the Direct Connect connection.
Which combination of steps will meet these requirements? (Choose two.)
BC
