What is the average queue length recommended by AWS to achieve a lower latency for the 200 PIOPS
EBS volume?

• A.5
• B.1
• C.2
• D.4

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A company has a legacy application running on servers on premises. To increase the application's reliability, the company wants to gain actionable insights using application logs. A Solutions Architect has been given following requirements for the solution:
* Aggregate logs using AWS.
* Automate log analysis for errors.
* Notify the Operations team when errors go beyond a specified threshold.
What solution meets the requirements?

• A.Install an AWS X-Ray agent on servers, send logs to AWS Lambda and analyze them to identify errors, use Amazon CloudWatch Events to notify the Operations team of errors.
• B.Install the Amazon CloudWatch agent on servers, send logs to Amazon CloudWatch Logs and use metric filters to identify errors, create a CloudWatch alarm to notify the Operations team of errors.
• C.Install Amazon Kinesis Agent on servers, send logs to Amazon Kinesis Data Streams and use Amazon Kinesis Data Analytics to identify errors, create an Amazon CloudWatch alarm to notify the Operations team of errors
• D.Install Logstash on servers, send logs to Amazon S3 and use Amazon Athena to identify errors, use sendmail to notify the Operations team of errors.

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A North American company with headquarters on the East Coast is deploying a new web application running on Amazon EC2 in the us-east-1 Region. The application should dynamically scale to meet user demand and maintain resiliency. Additionally, the application must have disaster recover capabilities in an active-passive configuration with the us-west-1 Region.
Which steps should a solutions architect take after creating a VPC in the us-east-1 Region?

• A.Deploy an Application Load Balancer (ALB) spanning multiple Availability Zones (AZs) to the VPC in the us-east-1 Region Deploy EC2 instances across multiple AZs as part of an Auto Scaling group served by the ALB. Deploy the same solution to the us-west-1 Region. Create an Amazon Route 53 record set with a failover routing policy and health checks enabled to provide high availability across both Regions.
• B.Create a VPC in the us-west-1 Region Use inter-Region VPC peering to connect both VPCs. Deploy an Application Load Balancer (ALB) spanning multiple Availability Zones (AZs) to the VPC in the us-east-1 Region Deploy EC2 instances across multiple AZs in each Region as part of an Auto Scaling group spanning both VPCs and served by the ALB.
• C.Deploy an Application Load Balancer (ALB) spanning multiple Availability Zones (AZs) to the VPC in the us-east-1 Region. Deploy EC2 instances across multiple AZs as part of an Auto Scaling group served by the ALB Deploy the same solution to the us-west-1 Region Create separate Amazon Route
  53 records in each Region that point to the ALB in the Region. Use Route 53 health checks to provide high availability across both Regions.
• D.Create a VPC in the us-west-1 Region Use inter-Region VPC peering to connect both VPCs. Deploy an Application Load Balancer (ALB) that spans both VPCs. Deploy LC2 instances across multiple Availability Zones as part of an Auto Scaling group in each VPC served by the ALB. Create an Amazon Route 53 record that points to the ALB.

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You have setup an Auto Scaling group. The cool down period for the Auto Scaling group is 7 minutes. The first scaling activity request for the Auto Scaling group is to launch two instances. It receives the activity question at time "t", and the first instance is launched at t+3 minutes, while the second instance is launched at t+4 minutes. How many minutes after time "t" will Auto Scaling accept another scaling activity request?

• A.11 minutes
• B.10 minutes
• C.7 minutes
• D.14 minutes

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A company is migrating a subset of its application APIs from Amazon EC2 instances to run on a serverless infrastructure. The company has set up Amazon API Gateway, AWS Lambda, and Amazon DynamoDB for the new application. The primary responsibility of the Lambda function is to obtain data from a third-party Software as a Service (SaaS) provider. For consistency, the Lambda function is attached to the same virtual private cloud (VPC) as the original EC2 instances.
Test users report an inability to use this newly moved functionality, and the company is receiving
5xx errors from API Gateway. Monitoring reports from the SaaS provider shows that the requests never made it to its systems. The company notices that Amazon CloudWatch Logs are being generated by the Lambda functions. When the same functionality is tested against the EC2 systems, it works as expected.
What is causing the issue?

• A.Lambda is in a subnet that does not have a NAT gateway attached to it to connect to the SaaS provider.
• B.API Gateway does not have the necessary permissions to invoke Lambda.
• C.The end-user application is misconfigured to continue using the endpoint backed by EC2 instances.
• D.The throttle limit set on API Gateway is too low and the requests are not making their way through.

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