Resilient Architecture II

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Question 6

A company hosts multi-tier web applications on AWS Cloud. The company uses Amazon RDS for SQL DB as the database. After the change in the compliance policy, the company sets the recovery point objective (RPO) of less than 3 seconds for its production database.

As a solutions architect provide a solution to meet these requirements.

A. Regularly schedule automated backups of your RDS instance to Amazon S3 and manually restore the database from the latest backup to a new RDS instance.

B. Enable Auto Scaling for DB instance in an Availability Zone.

C. Configure multiple RDS read replicas in different Availability Zones.

D. Enable Auto Scaling for DB instances in different Availability Zones.

Question 7

A company plans to launch a multi-tier architecture application on AWS Cloud. The application consists of an Application Load Balancer to direct traffic to EC2 instances. The application uses an Amazon RDS DB instance as a database. The EC2 instance and the Amazon RDS must not be accessible online. However, EC2 instances require internet access to complete different payment processes through a third-party app.

As a solutions architect, provide a solution to meet these requirements.

A. Deploy EC2 instances and Amazon RDS in the private subnet. Configure the NAT gateway in the private subnet to access the internet from EC2 instances.

B. Deploy EC2 instances and Amazon RDS in the public subnet. Configure the NAT gateway in the private subnet to access the internet from EC2 instances.

C. Deploy EC2 instances and Amazon RDS in the private subnet. Configure the NAT gateway in the public subnet to access the internet from EC2 instances.

D. Deploy EC2 instances and Amazon RDS in the private subnet. Configure the internet gateway in the public subnet to access the internet from EC2 instances.

Question 8

A company has an application running on EC2 instances across multiple Availability Zones. The EC2 instances run in an Auto Scaling group behind an Application Load Balancer (ALB). According to the recent diagnosis, the application performs best when the CPU utilization of EC2 instances is under 60%. 

As a solutions architect, provide a solution to optimize the performance across all instances. 

A. Configure the Auto Scaling group to use the simple scaling policy. 

B. Configure the Auto Scaling group to use the target tracking scaling policy dynamically. 

C. Configure AWS Lambda to update the Auto Scaling group. 

D. Configure the Auto Scaling group to use the scheduled scaling policy to scale up and down. 

Question 9

A company is planning to migrate an on-premises application to AWS Cloud. The application will run on EC2 instances. The migration policy states if CPU utilization increases by more than 70% and read IOPS are high simultaneously, the company must take action to adjust the architecture.

As a solutions architect, provide a solution to meet the above requirements and reduce the number of false alerts.

A. Configure Amazon CloudWatch composite alarms.

B. Configure Amazon CloudWatch to visualize the metric and perform manual intervention.

C. Configure an Amazon CloudWatch metric with multiple alarms.

D. Configure Amazon CloudWatch Synthetics to monitor the EC2 instances.

Question 10

A company has a .NET application running on an on-premises Windows server. The application uses the Oracle database server to store data. Due to the increasing workload and data, the company plans to migrate on-premises applications to AWS Cloud. The company wants to perform the minimum development changes to the application and ensure the application is highly available.

As a solutions architect, provide a solution to meet these requirements. (Select two options.)

A. Refactor the application as a serverless .NET application on AWS Lambda.

B. Configure the .NET application in AWS elastic Beanstalk in Multi-Zone deployment.

C. Configure the AWS Database Migration Service (AWS DMS) to migrate the Oracle database to the S3 bucket.

D. Configure the AWS Database Migration Service (AWS DMS) to migrate the Oracle database to the Amazon RDS in multi-zone deployment.

E. Configure the AWS Database Migration Service (AWS DMS) to migrate the Oracle database to the Amazon Dynamo DB.

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