Domain 4: Design Cost-Optimized Architectures Flashcards
Your company needs to move 75 TB of data to AWS. Their internet connection peaks at 10 Mbps. What is the fastest and most cost-effective solution to migrate this data to AWS?
Use a VPN concentrator to speed up the internet connection and upload the data to AWS.
Order an AWS Snowmobile, copy the data to the device, and send the device back. Then the data will exist on S3.
Order an AWS Snowball, copy the data to the device, and send the device back. Then the data will exist on S3.
This is the most cost-effective option.
Create a Direct Connect connection between the company and AWS. Upload the data directly.
Order an AWS Snowmobile, copy the data to the device, and send the device back. Then the data will exist on S3.
Although technically feasible, this is not the most cost-efficient answer.
Selected
Order an AWS Snowball, copy the data to the device, and send the device back. Then the data will exist on S3.
This is the most cost-effective option.
You have an internal data warehouse running custom database software on an on-premises server at your work. You need to migrate this application to AWS. Unfortunately, your application is not compatible with Redshift, so you need to run this on a custom EC2 instance with the appropriate EBS volumes. You need to use an EBS volume that can handle large, sequential I/O operations for this infrequently accessed data. What is the most cost-effective EBS volume to meet this requirement?
Provisioned IOPS SSD (io1)
Throughput Optimized HDD (st1)
Cold HDD (sc1)
EBS General Purpose SSD (gp2)
Provisioned IOPS SSD (io1)
This is a more expensive option.
Selected
Cold HDD (sc1)
Cold HDD (sc1) is the best low-cost choice for infrequently accessed data that has sequential I/O operations.
You are launching a simple static website that uses HTML, CSS, and some JavaScript that promotes a very popular Hollywood blockbuster. You are expecting a crazy amount of traffic around the premiere of the movie, with traffic dying down to low levels six months after launch. You need to choose a solution that will scale automatically to a global audience yet minimize costs. What should you choose?
Use API Gateway/Lambda & EC2 with EBS with provisioned IOPS with a MongoDB server installed.
Create an S3 bucket and turn on static website hosting. Use CloudFront as a CDN and set the origin as the S3 bucket.
Create an S3 bucket and turn on static website hosting. Use CloudFormation as a CDN and set the origin as the S3 bucket.
Install the website on a fleet of EC2 instances behind an Application Load Balancer with WAF enabled and an Autoscaling Group.
Create an S3 bucket and turn on static website hosting. Use CloudFront as a CDN and set the origin as the S3 bucket.
This is both technically feasible and is the least expensive option.
You work for a fintech company that stores its backups on a tape solution in-house at the company’s headquarters. They need to move the solution to the cloud and have a mandatory retention period of seven years due to regulations. They will only access the backups once a year for auditing purposes, and they can be flexible on how long the access will take. What is the most cost-effective solution?
Use AWS Storage Gateway to back the environment up to Amazon S3. After you eject the tapes from your backup application, your tapes can be archived to S3 Glacier Flexible Retrieval or S3 Glacier Deep Archive. Configure the lifecycle rules to keep the backups for the required seven years.
Use AWS Storage Gateway to back the environment up to Amazon S3. Create a lifecycle rule to archive the data to S3 Glacier Deep Archive once every seven years.
Use Amazon S3 File Gateway to save the files to an EC2 instance connected to EBS. Archive the data to DynamoDB once every seven years.
Use AWS Snowball to back the tape data up to S3 every month. Archive the data to S3 Glacier Deep Archive once every seven years.
Use AWS Storage Gateway to back the environment up to Amazon S3. After you eject the tapes from your backup application, your tapes can be archived to S3 Glacier Flexible Retrieval or S3 Glacier Deep Archive. Configure the lifecycle rules to keep the backups for the required seven years.
This is the most cost-effective solution.
You have created a meme generation website where users upload their own images and create the captions they want. Then, the web application processes this and stores the processed image in S3. What AWS services could achieve this while keeping the cost as low as possible?
Use SNS to queue the requests. Set up an SNS notification with an EC2 instance as its target. Use an EC2 instance to process the request and, once done, send the request back to SNS, which then saves the image to S3.
Use Kinesis Data Streams to process the requests. Use a Lambda function to process each request from the queue and then, once the image is generated, store the image in S3.
Use an SQS queue to queue the requests. Use a fleet of EC2 instances behind an Application Load Balancer and Autoscaling group to process each request from the queue, and then once the image is generated, store the image in S3.
Use an SQS queue to queue the requests. Use a Lambda function to process each request from the queue and then, once the image is generated, store the image in S3.
Use an SQS queue to queue the requests. Use a Lambda function to process each request from the queue and then, once the image is generated, store the image in S3.
This is technically possible and is the most cost-effective option.
You work for a digital design agency that hosts the majority of their digital assets on-premises using a local data center and a third-party CDN provider. Due to inflation, the costs of hosting are going up, and they are considering moving to the AWS cloud. They need a reliable place to store videos and pictures and be able to deliver this content globally using a CDN. What solution below is the most cost-effective?
API Gateway and Lambda as the frontend with an EFS mount on the back end
Dedicated EC2 instance with NeptuneDB
A fleet of EC2 instances behind an Application Load Balancer and EBS as storage
S3 and CloudFront
S3 and CloudFront
This would be the most cost-effective solution, given the scenario.
Your company has recently been getting charged overuse fees for software licenses for your Oracle products. Currently, there is a hybrid environment in place where there are Amazon EC2 instances running databases, as well as on-premises virtual machines running Oracle databases. It has been determined that the Oracle software needs to continue to be used, and there will not be a shift to any other database products. You are assigned to find a way to better manage license usage to avoid overuse charges in the future.
Which AWS service can help you accomplish this?
AWS Service Catalog
AWS License Manager
AWS Control Tower
AWS Budgets
AWS License Manager
You can use this to manage both cloud-based and on-premises software licenses to prevent license abuse and overages. It works with several well-known vendors, including Oracle.
Reference: What Is AWS License Manager?
Which architecture below fulfills the requirement of being serverless while maintaining the most cost-effective solution?
Application Load Balancer < EC2 < RDS < S3
Application Load Balancer < EC2 < EFS < S3
API Gateway < Lambda < DynamoDB < S3
Application Load Balancer < EC2 < DynamoDB < S3
API Gateway < Lambda < DynamoDB < S3
This solution is serverless and the most cost-effective.
Which of the following is the cheapest AWS support service?
Developer
Enterprise
Enterprise on-ramp
Business
Developer
Developer is the cheapest AWS support service.
You are migrating a media server to the AWS cloud that contains only images and video files. The server needs to be publicly accessible globally and you must keep costs to a minimum. What is the most cost-effective solution?
Use an EC2 instance connected to an EBS volume with provisioned IOPS.
Use a public S3 bucket backed by CloudFront.
Use a public S3 bucket backed by CloudFormation.
Use an EC2 instance connected to an EBS volume with general purpose SSD (gp2).
Use a public S3 bucket backed by CloudFront.
This is the cheapest solution.
Which of the following services is NOT included in AWS Free Tier?
EC2
Lambda
RDS
Snowball
Snowball
Snowball is not a free tier service.
Which of the following statements regarding AWS Free Tier are true? CHOOSE 3
5 GB of standard Amazon S3 storage is provided with the AWS Free Tier’s always free offer.
Among the always free services provided by AWS Free Tier is 1 million free AWS Lambda requests per month.
12-month AWS Free Tier offers are only available to new AWS customers.
AWS Free Tier includes free trials, specific amounts of specified services for 12 months, and many always free services.
Among the always free services provided by AWS Free Tier is 1 million free AWS Lambda requests per month.
AWS Free Tier includes 1 million free AWS Lambda requests per month. AWS Lambda is a serverless, event-driven compute service managed by AWS.
Selected
12-month AWS Free Tier offers are only available to new AWS customers.
AWS Free Tier offers are only available to new AWS customers, and are available for 12 months from the sign-up date.
Selected
AWS Free Tier includes free trials, specific amounts of specified services for 12 months, and many always free services.
With AWS Free Tier, various services are provided that include free trials, 12 months free of selected services (with limits), and many always free services.
Selected
You have a fleet of EC2 instances that all use EBS storage. Due to new regulatory requirements, you are required to back these EBS volumes up daily, automatically, in the most cost-effective way possible. What solution below allows you to do this?
Use Amazon Data Lifecycle Manager to automate the creation of EBS snapshots.
Create a bootstrap script to copy the files on the EBS volume directly to S3 every day. Reboot the EC2 fleet on a nightly basis.
Use AWS Storage Gateway - Tape to back the EBS volumes up directly to RDS.
Create a bootstrap script to copy the files on the EBS volume directly to EFS every day. Reboot the EC2 fleet on a nightly basis.
Use Amazon Data Lifecycle Manager to automate the creation of EBS snapshots.
This would be the most efficient and cost-effective method.
