Amazon AWS Certified Solutions Architect - Associate SAA-C02
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#111 (Accuracy: 93% / 11 votes)
A company has a custom application running on an Amazon EC instance that:
* Reads a large amount of data from Amazon S3
* Performs a multi-stage analysis
* Writes the results to Amazon DynamoDB
The application writes a significant number of large, temporary files during the multi-stage analysis.
The process performance depends on the temporary storage performance.
What would be the fastest storage option for holding the temporary files?
  • A. Multiple Amazon S3 buckets with Transfer Acceleration for storage.
  • B. Multiple Amazon Elastic Block Store (Amazon EBS) drives with Provisioned IOPS and EBS optimization.
  • C. Multiple Amazon Elastic File System (Amazon EFS) volumes using the Network File System version 4.1 (NFSv4.1) protocol.
  • D. Multiple instance store volumes with software RAID 0.
#112 (Accuracy: 92% / 16 votes)
A leasing company generates and emails PDF statements every month for all its customers. Each statement is about 400 KB in size. Customers can download their statements from the website for up to 30 days from when the statements were generated. At the end of their 3-year lease, the customers are emailed a ZIP file that contains all the statements.
What is the MOST cost-effective storage solution for this situation?
  • A. Store the statements using the Amazon S3 Standard storage class. Create a lifecycle policy to move the statements to Amazon S3 Glacier storage after 1 day.
  • B. Store the statements using the Amazon S3 Glacier storage class. Create a lifecycle policy to move the statements to Amazon S3 Glacier Deep Archive storage after 30 days.
  • C. Store the statements using the Amazon S3 Standard storage class. Create a lifecycle policy to move the statements to Amazon S3 One Zone-Infrequent Access (S3 One Zone-IA) storage after 30 days.
  • D. Store the statements using the Amazon S3 Standard-Infrequent Access (S3 Standard-IA) storage class. Create a lifecycle policy to move the statements to Amazon S3 Glacier storage after 30 days.
#113 (Accuracy: 100% / 2 votes)
A website runs a web application that receives a burst of traffic each day at noon. The users upload new pictures and content daily, but have been complaining of timeouts. The architecture uses Amazon EC2 Auto Scaling groups, and the custom application consistently takes 1 minute to initiate upon boot up before responding to user requests.
How should a solutions architect redesign the architecture to better respond to changing traffic?
  • A. Configure a Network Load Balancer with a slow start configuration.
  • B. Configure AWS ElastiCache for Redis to offload direct requests to the servers.
  • C. Configure an Auto Scaling step scaling policy with an instance warmup condition.
  • D. Configure Amazon CloudFront to use an Application Load Balancer as the origin.
#114 (Accuracy: 100% / 2 votes)
A company must re-evaluate its need for the Amazon EC2 instances it currently has provisioned in an Auto Scaling group. At present, the Auto Scaling group is configured for a minimum of two instances and a maximum of four instances across two Availability Zones. A Solutions architect reviewed Amazon CloudWatch metrics and found that CPU utilization is consistently low for all the EC2 instances.
What should the solutions architect recommend to maximize utilization while ensuring the application remains fault tolerant?
  • A. Remove some EC2 instances to increase the utilization of remaining instances.
  • B. Increase the Amazon Elastic Block Store (Amazon EBS) capacity of instances with less CPU utilization.
  • C. Modify the Auto Scaling group scaling policy to scale in and out based on a higher CPU utilization metric.
  • D. Create a new launch configuration that uses smaller instance types. Update the existing Auto Scaling group.
#115 (Accuracy: 91% / 7 votes)
A company is creating a prototype of an ecommerce website on AWS. The website consists of an Application Load Balancer, an Auto Scaling group of Amazon
EC2 instances for web servers, and an Amazon RDS for MySQL DB instance that runs with the Single-AZ configuration.

The website is slow to respond during searches of the product catalog.
The product catalog is a group of tables in the MySQL database that the company does not update frequently. A solutions architect has determined that the CPU utilization on the DB instance is high when product catalog searches occur.
What should the solutions architect recommend to improve the performance of the website during searches of the product catalog?
  • A. Migrate the product catalog to an Amazon Redshift database. Use the COPY command to load the product catalog tables.
  • B. Implement an Amazon ElastiCache for Redis cluster to cache the product catalog. Use lazy loading to populate the cache.
  • C. Add an additional scaling policy to the Auto Scaling group to launch additional EC2 instances when database response is slow.
  • D. Turn on the Multi-AZ configuration for the DB instance. Configure the EC2 instances to throttle the product catalog queries that are sent to the database.
#116 (Accuracy: 100% / 1 votes)
A company currently has 250 TB of backup files stored in Amazon S3 in a vendor's proprietary format. Using a Linux-based software application provided by the vendor, the company wants to retrieve files from Amazon S3, transform the files to an industry-standard format, and re-upload them to Amazon S3. The company wants to minimize the data transfer charges associated with this conversation.
What should a solutions architect do to accomplish this?
  • A. Install the conversion software as an Amazon S3 batch operation so the data is transformed without leaving Amazon S3.
  • B. Install the conversion software onto an on-premises virtual machine. Perform the transformation and re-upload the files to Amazon S3 from the virtual machine.
  • C. Use AWS Snowball Edge devices to export the data and install the conversion software onto the devices. Perform the data transformation and re-upload the files to Amazon S3 from the Snowball Edge devices.
  • D. Launch an Amazon EC2 instance in the same Region as Amazon S3 and install the conversion software onto the instance. Perform the transformation and re- upload the files to Amazon S3 from the EC2 instance.
#117 (Accuracy: 100% / 5 votes)
A company is running a photo hosting service in the us-east-1 Region. The service enables users across multiple countries to upload and view photos. Some photos are heavily viewed for months, and others are viewed for less than a week. The application allows uploads of up to 20 MB for each photo. The service uses the photo metadata to determine which photos to display to each user.
Which solution provides the appropriate user access MOST cost-effectively?
  • A. Store the photos in Amazon DynamoDB. Turn on DynamoDB Accelerator (DAX) to cache frequently viewed items.
  • B. Store the photos in the Amazon S3 Intelligent-Tiering storage class. Store the photo metadata and its S3 location in DynamoDB.
  • C. Store the photos in the Amazon S3 Standard storage class. Set up an S3 Lifecycle policy to move photos older than 30 days to the S3 Standard-Infrequent Access (S3 Standard-IA) storage class. Use the object tags to keep track of metadata.
  • D. Store the photos in the Amazon S3 Glacier storage class. Set up an S3 Lifecycle policy to move photos older than 30 days to the S3 Glacier Deep Archive storage class. Store the photo metadata and its S3 location in Amazon Elasticsearch Service (Amazon ES).
#118 (Accuracy: 100% / 3 votes)
A medical records company is hosting an application on Amazon EC2 instances. The application processes customer data files that are stored on Amazon S3.
The EC2 instances are hosted in public subnets.
The EC2 instances access Amazon S3 over the Internet, but they do not require any other network access.
A new requirement mandates that the network traffic for file transfers take a private route and not be sent over the Internet.

Which change to the network architecture should a solutions architect recommend to meet this requirement?
  • A. Create a NAT gateway. Configure the route table for the public subnets to send traffic to Amazon S3 through the NAT gateway.
  • B. Configure the security group for the EC2 instances to restrict outbound traffic so that only traffic to the S3 prefix list is permitted
  • C. Move the EC2 instances to private subnets. Create a VPC endpoint for Amazon S3, and link the endpoint to the route table for the private subnets.
  • D. Remove the internet gateway from the VPC. Set up an AWS Direct Connect connection, and route traffic to Amazon S3 over the Direct Connect connection.
#119 (Accuracy: 100% / 3 votes)
A company wants to reduce the cost of its existing three-tier web architecture. The web, application, and database servers are running on Amazon EC2 instances for the development, test, and production environments. The EC2 instances average 30% CPU utilization during peak hours and 10% CPU utilization during non- peak hours.
The production EC2 instances run 24 hours a day.
The development and test EC2 instances run for at least 8 hours each day. The company plans to implement automation to stop the development and test EC2 instances when they are not in use.
Which EC2 instance purchasing solution will meet the company's requirements MOST cost-effectively?
  • A. Use Spot Instances for the production EC2 instances. Use Reserved Instances for the development and test EC2 instances.
  • B. Use Reserved Instances for the production EC2 instances. Use On-Demand Instances for the development and test EC2 instances.
  • C. Use Spot blocks for the production EC2 instances. Use Reserved Instances for the development and test EC2 instances.
  • D. Use On-Demand Instances for the production EC2 instances. Use Spot blocks for the development and test EC2 instances.
#120 (Accuracy: 100% / 4 votes)
A company has a three-tier application on AWS that ingests sensor data from its users' devices. The traffic flows through a Network Load Balancer (NLB), then to
Amazon EC2 instances for the web tier, and finally to EC2 instances for the application tier.
The application tier makes calls to a database.
What should a solutions architect do to improve the security of the data in transit?
  • A. Configure a TLS listener. Deploy the server certificate on the NLB.
  • B. Configure AWS Shield Advanced. Enable AWS WAF on the NLB.
  • C. Change the load balancer to an Application Load Balancer (ALB). Enable AWS WAF on the ALB.
  • D. Encrypt the Amazon Elastic Block Store (Amazon EBS) volume on the EC2 instances by using AWS Key Management Service (AWS KMS).