A company offers a food delivery service that is growing rapidly Because of the growth the company's order processing system is experiencing scaling problems during peak traffic hours. The current architecture includes the following:
1.
A group of Amazon EC2 instances that run in an Amazon EC2 Auto Scaling group to collect orders from the application
2.
Another group of EC2 instances that run in an Amazon EC2 Auto Scaling group to fulfill orders
3.
The order collection process occurs quickly, but the order fulfillment process can take longer Data must not be lost because of a scaling event
4.
A solutions architect must ensure that the order collection process and the order fulfillment process can both scale properly during peak traffic hours The solution must optimize utilization of the company's AWS resources
Which solution meets these requirements?
A. Use Amazon CloudWatch metrics to monitor the CPU of each instance in the Auto Scaling groups. Configure each Auto Scaling group's minimum capacity according to peak workload values
B. Use Amazon CloudWatch metrics to monitor the CPU of each instance in the Auto Scaling groups Configure a CloudWatch alarm to invoke an Amazon Simple Notification Service (Amazon SNS) topic that creates additional Auto Scaling groups on demand
C. Provision two Amazon Simple Queue Service (Amazon SQS) queues one for order collection and another for order fulfillment Configure the EC2 instances to poll their respective queue Scale the Auto Scaling groups based on notifications that the queues send
D. Provision two Amazon Simple Queue Service (Amazon SQS) queues one for order collection and another for order fulfillment. Configure the EC2 instances to poll their respective queue. Create a metric based on a backlog per instance calculation Scale the Auto Scaling groups based on this metric.
A company is designing an application where users upload small files into Amazon S3. After a user uploads a file, the file requires one-time simple processing to transform the data and save the data in JSON format for later analysis.
Each file must be processed as quickly as possible after it is uploaded. Demand will vary. On some days, users will upload a high number of files. On other days, users will upload a few files or no files.
Which solution meets these requirements with the LEAST operational overhead?
A. Configure Amazon EMR to read text files from Amazon S3. Run processing scripts to transform the data. Store the resulting JSON file in an Amazon Aurora DB cluster.
B. Configure Amazon S3 to send an event notification to an Amazon Simple Queue Service (Amazon SQS) queue. Use Amazon EC2 instances to read from the queue and process the data. Store the resulting JSON file in Amazon DynamoDB.
C. Configure Amazon S3 to send an event notification to an Amazon Simple Queue Service (Amazon SQS) queue. Use an AWS Lambda function to read from the queue and process the data. Store the resulting JSON file in Amazon DynamoDB.
D. Configure Amazon EventBridge (Amazon CloudWatch Events) to send an event to Amazon Kinesis Data Streams when a new file is uploaded. Use an AWS Lambda function to consume the event from the stream and process the data. Store the resulting JSON file in Amazon Aurora DB cluster.
A company is experiencing sudden increases in demand. The company needs to provision large Amazon EC2 instances from an Amazon Machine image (AMI) The instances will run m an Auto Scaling group. The company needs a solution that provides minimum initialization latency to meet the demand.
Which solution meets these requirements?
A. Use the aws ec2 register-image command to create an AMI from a snapshot Use AWS Step Functions to replace the AMI in the Auto Scaling group
B. Enable Amazon Elastic Block Store (Amazon EBS) fast snapshot restore on a snapshot Provision an AMI by using the snapshot Replace the AMI m the Auto Scaling group with the new AMI
C. Enable AMI creation and define lifecycle rules in Amazon Data Lifecycle Manager (Amazon DLM) Create an AWS Lambda function that modifies the AMI in the Auto Scaling group
D. Use Amazon EventBridge (Amazon CloudWatch Events) to invoke AWS Backup lifecycle policies that provision AMIs Configure Auto Scaling group capacity limits as an event source in EventBridge (CloudWatch Events)
A solutions architect is designing a new hybrid architecture to extend a company s on- premises infrastructure to AWS The company requires a highly available connection with consistent low latency to an AWS Region. The company needs to minimize costs and is willing to accept slower traffic if the primary connection fails.
What should the solutions architect do to meet these requirements?
A. Provision an AWS Direct Connect connection to a Region Provision a VPN connection as a backup if the primary Direct Connect connection fails.
B. Provision a VPN tunnel connection to a Region for private connectivity. Provision a second VPN tunnel for private connectivity and as a backup if the primary VPN connection fails
C. Provision an AWS Direct Connect connection to a Region Provision a second Direct Connect connection to the same Region as a backup if the primary Direct Connect connection fails.
D. Provision an AWS Direct Connect connection to a Region Use the Direct Connect failover attribute from the AWS CLI to automatically create a backup connection if the primary Direct Connect connection fails.
A company runs a stateless web application in production on a group of Amazon EC2 On- Demand Instances behind an Application Load Balancer. The application experiences heavy usage during an 8-hour period each business day. Application usage is moderate and steady overnight Application usage is low during weekends.
The company wants to minimize its EC2 costs without affecting the availability of the application.
Which solution will meet these requirements?
A. Use Spot Instances for the entire workload.
B. Use Reserved instances for the baseline level of usage Use Spot Instances for any additional capacity that the application needs.
C. Use On-Demand Instances for the baseline level of usage. Use Spot Instances for any additional capacity that the application needs
D. Use Dedicated Instances for the baseline level of usage. Use On-Demand Instances for any additional capacity that the application needs
A company runs a public three-Tier web application in a VPC The application runs on Amazon EC2 instances across multiple Availability Zones. The EC2 instances that run in private subnets need to communicate with a license server over the internet The company needs a managed solution that minimizes operational maintenance
Which solution meets these requirements?
A. Provision a NAT instance in a public subnet Modify each private subnets route table with a default route that points to the NAT instance
B. Provision a NAT instance in a private subnet Modify each private subnet's route table with a default route that points to the NAT instance
C. Provision a NAT gateway in a public subnet Modify each private subnet's route table with a default route that points to the NAT gateway
D. Provision a NAT gateway in a private subnet Modify each private subnet's route table with a default route that points to the NAT gateway .
A solutions architect creates a VPC that includes two public subnets and two private subnets A corporate security mandate requires the solutions architect to launch all Amazon EC2 instances in a private subnet However when the solutions architect launches an EC2 instance that runs a web server on ports 80 and 443 in a private subnet, no external internet traffic can connect to the server.
What should the solutions architect do to resolve this issue?
A. Attach the EC2 instance to an Auto Scaling group in a private subnet Ensure that the DNS record for the website resolves to the Auto Scaling group identifier
B. Provision an internet-facing Application Load Balancer (ALB) in a public subnet Add the EC2 instance to the target group that is associated with the ALB Ensure that the DNS record for the website resolves to the ALB
C. Launch a NAT gateway in a private subnet Update the route table for the private subnets to add a default route to the NAT gateway Attach a public Elastic IP address to the NAT gateway
D. Ensure that the security group that is attached to the EC2 instance allows HTTP traffic on port 80 and HTTPS traffic on port 443 Ensure that the DNS record for the website resolves to the public IP address of the EC2 instance
A company uses a combination of Amazon EC2 instances and AWS Fargate tasks to process daily transactions. The company faces unpredictable and sudden increases in transaction volume. The company needs a solution that will process the transactions immediately.
Which solution meets these requirement MOST cost-effectively?
A. Purchase a Compute Savings Plan
B. Purchase an EC2 Instance Savings Plan.
C. Purchase Reserved Instances tor existing EC2 workloads.
D. Use Spot Instances for existing EC2 workloads.
E. Use Far gale Spot capacity for the tasks.
A company has a financial application that produces reports. The reports average 50 KB in size and are stored in Amazon S3. The reports are frequently accessed during the first week after production and must be stored for several years The reports must be retrievable within 6 hours
Which solution meets these requirements MOST cost-effectively?
A. Use S3 Standard Use an S3 Lifecycle rule to transition the reports to S3 Glacier after 7 days.
B. Use S3 Standard Use an S3 Lifecycle rule to transition the reports to S3 Standard- Infrequent Access (S3 Standard-IA) after 7 days
C. Use S3 Intelligent-Tiering Configure S3 Intelligent-Tiering to transition the reports to S3 Standard-Infrequent Access (S3 Standard-IA) and S3 Glacier
D. Use S3 Standard Use an S3 Lifecycle rule to transition the reports to S3 Glacier Deep Archive after 7 days
An ecommerce company uses an Amazon Aurora DB cluster to store customer transactions. The company also maintains a separate Amazon DynamoDB table that contains item sales information The company wants the DB cluster to invoke a recently deployed AWS Lambda function to update the DynamoDB table every time a row is inserted into the database.
Which combination of steps should a solutions architect take to meet these requirements? (Select TWO.)
A. Modify the Lambda function to allow outbound communication to the DB cluster
B. Modify the DB cluster to allow outbound communication to the Lambda function.
C. Modify the DB cluster to allow outbound communication to the DynamoDB table
D. Ensure that the DB cluster has an IAM role that allows the DB cluster to invoke Lambda functions.
E. Ensure that the Lambda function has an 1AM role that allows Lambda to invoke functions on the DB cluster
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