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Free Amazon AWS-SOLUTION-ARCHITECT-ASSOCIATE Exam Braindumps (page: 20)

Page 20 of 256
PDF with 612 Questions

A company recently launched Linux-based application instances on Amazon EC2 in a private subnet and launched a Linux-based bastion host on an Amazon EC2 instance in a public subnet of a VPC. A solutions architect needs to connect from the on-premises network, through the company's internet connection, to the bastion host, and to the application servers. The solutions architect must make sure that the security groups of all the EC2 instances will allow that access.
Which combination of steps should the solutions architect take to meet these requirements? (Choose two.)

  1. Replace the current security group of the bastion host with one that only allows inbound access from the application instances.
  2. Replace the current security group of the bastion host with one that only allows inbound access from the internal IP range for the company.
  3. Replace the current security group of the bastion host with one that only allows inbound access from the external IP range for the company.
  4. Replace the current security group of the application instances with one that allows inbound SSH access from only the private IP address of the bastion host.
  5. Replace the current security group of the application instances with one that allows inbound SSH access from only the public IP address of the bastion host.

Answer(s): C,D



A solutions architect is designing a two-tier web application. The application consists of a public-facing web tier hosted on Amazon EC2 in public subnets. The database tier consists of Microsoft SQL Server running on Amazon EC2 in a private subnet. Security is a high priority for the company.
How should security groups be configured in this situation? (Choose two.)

  1. Configure the security group for the web tier to allow inbound traffic on port 443 from 0.0.0.0/0.
  2. Configure the security group for the web tier to allow outbound traffic on port 443 from 0.0.0.0/0.
  3. Configure the security group for the database tier to allow inbound traffic on port 1433 from the security group for the web tier.
  4. Configure the security group for the database tier to allow outbound traffic on ports 443 and 1433 to the security group for the web tier.
  5. Configure the security group for the database tier to allow inbound traffic on ports 443 and 1433 from the security group for the web tier.

Answer(s): A,C



A company wants to move a multi-tiered application from on premises to the AWS Cloud to improve the application's performance. The application consists of application tiers that communicate with each other by way of RESTful services. Transactions are dropped when one tier becomes overloaded. A solutions architect must design a solution that resolves these issues and modernizes the application.
Which solution meets these requirements and is the MOST operationally efficient?

  1. Use Amazon API Gateway and direct transactions to the AWS Lambda functions as the application layer. Use Amazon Simple Queue Service (Amazon SQS) as the communication layer between application services.
  2. Use Amazon CloudWatch metrics to analyze the application performance history to determine the servers' peak utilization during the performance failures. Increase the size of the application server's Amazon EC2 instances to meet the peak requirements.
  3. Use Amazon Simple Notification Service (Amazon SNS) to handle the messaging between application servers running on Amazon EC2 in an Auto Scaling group. Use Amazon CloudWatch to monitor the SNS queue length and scale up and down as required.
  4. Use Amazon Simple Queue Service (Amazon SQS) to handle the messaging between application servers running on Amazon EC2 in an Auto Scaling group. Use Amazon CloudWatch to monitor the SQS queue length and scale up when communication failures are detected.

Answer(s): A



A company receives 10 TB of instrumentation data each day from several machines located at a single factory. The data consists of JSON files stored on a storage area network (SAN) in an on-premises data center located within the factory. The company wants to send this data to Amazon S3 where it can be accessed by several additional systems that provide critical near-real-time analytics. A secure transfer is important because the data is considered sensitive.
Which solution offers the MOST reliable data transfer?

  1. AWS DataSync over public internet
  2. AWS DataSync over AWS Direct Connect
  3. AWS Database Migration Service (AWS DMS) over public internet
  4. AWS Database Migration Service (AWS DMS) over AWS Direct Connect

Answer(s): B



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