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As a Solutions Architect, you are tasked to design a distributed application that will run on various EC2 instances. This application needs to have the highest performance local disk to cache data. Also, data is copied through an EC2 to EC2 replication mechanism. It is acceptable if the instance loses its data when stopped or terminated.
Which storage solution do you recommend?
A music-sharing company uses a Network Load Balancer to direct traffic to 5 EC2 instances managed by an Auto Scaling group. When a very popular song is released, the Auto Scaling Group scales to 100 instances and the company incurs high network and compute fees.
The company wants a solution to reduce the costs without changing any of the application code. What do you recommend?
An IT company has a large number of clients opting to build their APIs by using Docker containers. To facilitate the hosting of these containers, the company is looking at various orchestration services available with AWS.
As a Solutions Architect, which of the following solutions will you suggest? (Select two)
Select all that apply
A company wants to adopt a hybrid cloud infrastructure where it uses some AWS services such as S3 alongside its on-premises data center. The company wants a dedicated private connection between the on-premise data center and AWS. In case of failures though, the company needs to guarantee uptime and is willing to use the public internet for an encrypted connection.
What do you recommend? (Select two)
Select all that apply
An Internet-of-Things (IoT) company would like to have a streaming system that performs real-time analytics on the ingested IoT data. Once the analytics is done, the company would like to send notifications back to the mobile applications of the IoT device owners.
As a solutions architect, which of the following AWS technologies would you recommend to send these notifications to the mobile applications?
A company has noticed that its EBS storage volume (io1) accounts for 90% of the cost and the remaining 10% cost can be attributed to the EC2 instance. The CloudWatch metrics report that both the EC2 instance and the EBS volume are under-utilized. The CloudWatch metrics also show that the EBS volume has occasional I/O bursts. The entire infrastructure is managed by AWS CloudFormation.
As a Solutions Architect, what do you propose to reduce the costs?
A leading e-commerce company runs its IT infrastructure on AWS Cloud. The company has a batch job running at 7 am daily on an RDS database. It processes shipping orders for the past day, and usually gets around 2000 records that need to be processed sequentially in a batch job via a shell script. The processing of each record takes about 3 seconds.
What platform do you recommend to run this batch job?
Your company runs a web portal to match developers to clients who need their help. As a solutions architect, you've designed the architecture of the website to be fully serverless with API Gateway & AWS Lambda. The backend uses a DynamoDB table. You would like to automatically congratulate your developers on important milestones, such as - their first paid contract. All the contracts are stored in DynamoDB.
Which DynamoDB feature can you use to implement this functionality such that there is LEAST delay in sending automatic notifications?
A startup's cloud infrastructure consists of a few Amazon EC2 instances, Amazon RDS instances and Amazon S3 storage. A year into their business operations, the startup is incurring costs that seem too high for their business requirements.
Which of the following options represents a valid cost-optimization solution?
A junior developer has downloaded a sample Amazon S3 bucket policy to make changes to it based on new company-wide access policies. He has requested your help in understanding this bucket policy.
As a Solutions Architect, which of the following would you identify as the correct description for the given policy?
{
"Version": "2012-10-17",
"Id": "S3PolicyId1",
"Statement": [
{
"Sid": "IPAllow",
"Effect": "Allow",
"Principal": "*",
"Action": "s3:*",
"Resource": "arn:aws:s3:::examplebucket/*",
"Condition": {
"IpAddress": {"aws:SourceIp": "54.240.143.0/24"},
"NotIpAddress": {"aws:SourceIp": "54.240.143.188/32"}
}
}
]
}
