Amazon SAA-C03 Question Answers

Question # 141

A company has two VPCs that are located in the us-west-2 Region within the same AWS account. The company needs to allow network traffic between these VPCs. Approximately 500 GB of data transfer will occur between the VPCs each month. What is the MOST cost-effective solution to connect these VPCs? 

A. Implement AWS Transit Gateway to connect the VPCs. Update the route tables of eachVPC to use the transit gateway for inter-VPC communication.
B. Implement an AWS Site-to-Site VPN tunnel between the VPCs. Update the route tablesof each VPC to use the VPN tunnel for inter-VPC communication.
C. Set up a VPC peering connection between the VPCs. Update the route tables of eachVPC to use the VPC peering connection for inter-VPC communication.
D. Set up a 1 GB AWS Direct Connect connection between the VPCs. Update the routetables of each VPC to use the Direct Connect connection for inter-VPC communication.

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Question # 142

A company runs a web application that is deployed on Amazon EC2 instances in the private subnet of a VPC. An Application Load Balancer (ALB) that extends across the public subnets directs web traffic to the EC2 instances. The company wants to implement new security measures to restrict inbound traffic from the ALB to the EC2 instances while preventing access from any other source inside or outside the private subnet of the EC2 instances. Which solution will meet these requirements? 

A. Configure a route in a route table to direct traffic from the internet to the private IPaddresses of the EC2 instances.
B. Configure the security group for the EC2 instances to only allow traffic that comes fromthe security group for the ALB.
C. Move the EC2 instances into the public subnet. Give the EC2 instances a set of ElasticIP addresses.
D. Configure the security group for the ALB to allow any TCP traffic on any port.

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Question # 143

A company runs applications on AWS that connect to the company's Amazon RDS database. The applications scale on weekends and at peak times of the year. The company wants to scale the database more effectively for its applications that connect to the database. Which solution will meet these requirements with the LEAST operational overhead 

A. Use Amazon DynamoDB with connection pooling with a target group configuration forthe database. Change the applications to use the DynamoDB endpoint.
B. Use Amazon RDS Proxy with a target group for the database. Change the applicationsto use the RDS Proxy endpoint.
C. Use a custom proxy that runs on Amazon EC2 as an intermediary to the database.Change the applications to use the custom proxy endpoint.
D. Use an AWS Lambda function to provide connection pooling with a target groupconfiguration for the database. Change the applications to use the Lambda function.

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Question # 144

A company runs an application that uses Amazon RDS for PostgreSQL. The application receives traffic only on weekdays during business hours. The company wants to optimize costs and reduce operational overhead based on this usage. Which solution will meet these requirements? 

A. Use the Instance Scheduler on AWS to configure start and stop schedules.
B. Turn off automatic backups. Create weekly manual snapshots of the database.
C. Create a custom AWS Lambda function to start and stop the database based onminimum CPU utilization.
D. Purchase All Upfront reserved DB instances.

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Question # 145

A company needs to connect several VPCs in the us-east-1 Region that span hundreds of AWS accounts. The company's networking team has its own AWS account to manage the cloud network. What is the MOST operationally efficient solution to connect the VPCs? 

A. Set up VPC peering connections between each VPC. Update each associated subnet'sroute table.
B. Configure a NAT gateway and an internet gateway in each VPC to connect each VPCthrough the internet.
C. Create an AWS Transit Gateway in the networking team's AWS account. Configurestatic routes from each VPC.
D. Deploy VPN gateways in each VPC. Create a transit VPC in the networking team's AWSaccount to connect to each VPC.

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Question # 146

A company has created a multi-tier application for its ecommerce website. The website uses an Application Load Balancer that resides in the public subnets, a web tier in the public subnets, and a MySQL cluster hosted on Amazon EC2 instances in the private subnets. The MySQL database needs to retrieve product catalog and pricing information that is hosted on the internet by a third-party provider. A solutions architect must devise a strategy that maximizes security without increasing operational overhead. What should the solutions architect do to meet these requirements? 

A. Deploy a NAT instance in the VPC. Route all the internet-based traffic through the NATinstance.
B. Deploy a NAT gateway in the public subnets. Modify the private subnet route table todirect all internet-bound traffic to the NAT gateway.
C. Configure an internet gateway and attach it to the VPC. Modify the private subnet routetable to direct internet-bound traffic to the internet gateway.
D. Configure a virtual private gateway and attach it to the VPC. Modify the private subnetroute table to direct internet-bound traffic to the virtual private gateway.

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Question # 147

A solutions architect is designing a highly available Amazon ElastiCache for Redis based solution. The solutions architect needs to ensure that failures do not result in performance degradation or loss of data locally and within an AWS Region. The solution needs to provide high availability at the node level and at the Region level. Which solution will meet these requirements? 

A. Use Multi-AZ Redis replication groups with shards that contain multiple nodes.
B. Use Redis shards that contain multiple nodes with Redis append only files (AOF) turedon.
C. Use a Multi-AZ Redis cluster with more than one read replica in the replication group.
D. Use Redis shards that contain multiple nodes with Auto Scaling turned on.

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Question # 148

A company runs its applications on Amazon EC2 instances. The company performs periodic financial assessments of itsAWS costs. The company recently identified unusual spending. The company needs a solution to prevent unusual spending. The solution must monitor costs and notify responsible stakeholders in the event of unusual spending. Which solution will meet these requirements? 

A. Use an AWS Budgets template to create a zero spend budget
B. Create an AWS Cost Anomaly Detection monitor in the AWS Billing and CostManagement console.
C. CreateAWS Pricing Calculator estimates for the current running workload pricingdetails_
D. Use Amazon CloudWatch to monitor costs and to identify unusual spending

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Question # 149

A company wants to use an event-driven programming model with AWS Lambda. The company wants to reduce startup latency for Lambda functions that run on Java 11. The company does not have strict latency requirements for the applications. The company wants to reduce cold starts and outlier latencies when a function scales up. Which solution will meet these requirements MOST cost-effectively? 

A. Configure Lambda provisioned concurrency.
B. Increase the timeout of the Lambda functions.
C. Increase the memory of the Lambda functions.
D. Configure Lambda SnapStart.

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Question # 150

A company needs to minimize the cost of its 1 Gbps AWS Direct Connect connection. The company's average connection utilization is less than 10%. A solutions architect must recommend a solution that will reduce the cost without compromising security. Which solution will meet these requirements? 

A. Set up a new 1 Gbps Direct Connect connection. Share the connection with anotherAWS account.
B. Set up a new 200 Mbps Direct Connect connection in the AWS Management Console.
C. Contact an AWS Direct Connect Partner to order a 1 Gbps connection. Share theconnection with another AWS account.
D. Contact an AWS Direct Connect Partner to order a 200 Mbps hosted connection for anexisting AWS account.

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