A company runs an application in the cloud that consists of a database and a website Users can post data to the website, have the data processed, and have the data sent back to them in an email. Data is stored in a MySQL database running on an Amazon EC2 instance The database is running in a VPC with two private subnets The website is running on Apache Tomcat in a single EC2 instance in a different VPC with one public subnet There is a single VPC peering connection between the database and website VPC.
The website has suffered several outages during the last month due to high traffic Which actions should a solutions architect take to increase the reliability of the application? (Select THREE )

A company is planning to store a large number of archived documents and make the documents available to employees through the corporate intranet. Employees will access the system by connecting through a client VPN service that is attached to a VPC. The data must not be accessible to the public.
The documents that the company is storing are copies of data that is held on physical media elsewhere. The number of requests will be low. Availability and speed of retrieval are not concerns of the company.
Which solution will meet these requirements at the LOWEST cost?

A company is building a serverless application that runs on an AWS Lambda function that is attached to a VPC. The company needs to integrate the application with a new service from an external provider. The external provider supports only requests that come from public IPv4 addresses that are in an allow list.
The company must provide a single public IP address to the external provider before the application can start using the new service.
Which solution will give the application the ability to access the new service?

A company recently deployed a new application that runs on a group of Amazon EC2 Linux instances in a VPC In a peered VPC the company launched an EC2 Linux instance that serves as a bastion host The security group of the application instances allows access only on TCP port 22 from the private IP of the bastion host The security group of the bastion host allows access to TCP port 22 from 0 0 0.0/0 so that system administrators can use SSH to remotely log in to the application instances from several branch offices While looking through operating system logs on the bastion host, a cloud engineer notices thousands of failed SSH logins to the bastion host from locations around the world The cloud engineer wants to change how remote access is granted to the application instances and wants to meet the following requirements:
* Eliminate brute-force SSH login attempts
* Retain a log of commands run during an SSH session
* Retain the ability to forward ports
Which solution meets these requirements for remote access to the application instances?

A large company has a business-critical application that runs in a single AWS Region The application consists of multiple Amazon EC2 instances and an Amazon RDS Multi-AZ DB instance The EC2 instances run In an Amazon EC2 Auto Scaling group across multiple Availability Zones A solutions architect is implementing a disaster recovery (DR) plan for the application The solutions architect has created a pilot light application deployment in a new Region, which is referred to as the DR Region The DR environment has an Auto Scaling group with a single EC2 instance and a read replica of the RDS DB instance The solutions architect must automate a failover from the primary application environment to the pilot light environment in the DR Region Which solution meets these requirements with the MOST operational efficiency''