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A business operates a continuously running Amazon EC2 workload on AWS 24/7. They need to use the same instance family and type for the next year to maintain performance consistency.

Which purchasing options should they select to achieve the HIGHEST cost savings? (Choose two.)

Which AWS service operates as a stateless firewall to regulate traffic at the subnet level of a VPC?

A company’s application runs on Amazon EC2 instances and uses AWS Lambda for processing events. The production environment operates continuously due to global users, while the non-production environments are used only on weekdays during business hours. The company wants to minimize costs without affecting production reliability.

Which solution is MOST cost-effective?

A company has developed a real-time multiplayer quiz platform as a web application. The application uses a three-tier architecture in a VPC with Amazon RDS for PostgreSQL in the database layer. Multiple users compete simultaneously, and the platform must display a live leaderboard ranking the top 10 participants. Additionally, users need the ability to pause and resume quizzes while retaining their current scores and progress.

What should a solutions architect implement to fulfill these requirements?

A company with several AWS accounts is using AWS Organizations and service control policies (SCPs). An administrator created the following SCP and has attached it to an organizational unit (OU) that contains AWS account 2222-2222-2222:

json<br>{<br> "Version": "2012-10-17",<br> "Statement": [<br> {<br> "Sid": "AllowsAllActions",<br> "Effect": "Allow",<br> "Action": "*",<br> "Resource": "*"<br> },<br> {<br> "Sid": "DenyConfig",<br> "Effect": "Deny",<br> "Action": "config:*",<br> "Resource": "*"<br> }<br> ]<br>}<br>

Developers working in account 2222-2222-2222 complain that they cannot create Amazon S3 buckets. How should the administrator address this problem?

A company hosts a web application on a single Amazon EC2 instance. Users report increased latency during peak traffic periods, with CPU utilization consistently exceeding 90%. A user data script installs specialized software packages during instance launch, which delays the process by several minutes. The company is configuring an Auto Scaling group with mixed instance types, diverse memory configurations, and a fixed maximum capacity. The Auto Scaling group uses a launch template for instance configuration. The company needs to minimize application latency when new instances are provisioned during scaling events. Which solution addresses these requirements?

A gaming application requires real-time access to player progress metadata, which is frequently updated and retrieved during gameplay. The system must support millions of concurrent users globally while ensuring metadata queries have single-digit millisecond latency. Which AWS service should be used to meet these requirements?

A team uses Amazon API Gateway to manage a REST API with a single resource and a POST method integrated with an AWS Lambda function. A developer updates the Lambda function and publishes it as a new version. The team needs to validate the new version in a testing environment without impacting the production API. The solution must minimize operational complexity.

Which approach meets these requirements with the LEAST operational overhead?