Amazon
SAP-C01 Exam
Questions

AWS Certified Solutions Architect - Professional SAP-C01

Amazon (SAP-C01) Exam Questions And Answers page 49

What is the most cost-effective solution for reducing costs while maintaining reliability in a web application redesign using Amazon API Gateway and AWS Lambda?

Single Choice

A Solutions Architect is working with a company that operates a standard three-tier web application in AWS. The web and application tiers run on Amazon EC2 and the database tier runs on Amazon RDS. The company is redesigning the web and application tiers to use Amazon API Gateway and AWS Lambda, and the company intends to deploy the new application within 6 months. The IT Manager has asked the Solutions Architect to reduce costs in the interim.

Which solution will be MOST cost effective while maintaining reliability?

Use Spot Instances for the web tier, On-Demand Instances for the application tier, and Reserved Instances for the database tier.

Use On-Demand Instances for the web and application tiers, and Reserved Instances for the database tier.

Use Spot Instances for the web and application tiers, and Reserved Instances for the database tier.

Use Reserved Instances for the web, application, and database tiers.

Implementing cost control strategies

How Can Route 53 Failover to us-east-1 When eu-central-1 RDS Is Inaccessible?

Multiple Choice

A Solutions Architect must build a highly available infrastructure for a popular global video game that runs on a mobile phone platform. The application runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Auto Scaling group across multiple Availability Zones. The database tier is an Amazon RDS MySQL Multi-AZ instance. The entire application stack is deployed in both us-east-1 and eu-central-1. Amazon Route 53 is used to route traffic to the two installations using a latency-based routing policy. A weighted routing policy is configured in Route 53 as a fail over to another region in case the installation in a region becomes unresponsive.

During the testing of disaster recovery scenarios, after blocking access to the Amazon RDS MySQL instance in eu-central-1 from all the application instances running in that region. Route 53 does not automatically failover all traffic to us-east-1.

Based on this situation, which changes would allow the infrastructure to failover to us-east-1? (Choose two.)

Specify a weight of 100 for the record pointing to the primary Application Load Balancer in us-east-1 and a weight of 60 for the pointing to the primary Application Load Balancer in eu-central-1.

Specify a weight of 100 for the record pointing to the primary Application Load Balancer in us-east-1 and a weight of 0 for the record pointing to the primary Application Load Balancer in eu-central-1.

Set the value of Evaluate Target Health to Yes on the latency alias resources for both eu-central-1 and us-east-1.

Write a URL in the application that performs a health check on the database layer. Add it as a health check within the weighted routing policy in both regions.

Disable any existing health checks for the resources in the policies and set a weight of 0 for the records pointing to primary in both eu-central-1 and us-east-1, and set a weight of 100 for the primary Application Load Balancer only in the region that has healthy resources.

Designing highly available, cost-efficient, fault-tolerant, scalable systems Designing for security and compliance

What is the most cost-effective solution for a company's backup needs with specific RTO and RPO requirements?

Single Choice

A Solutions Architect must create a cost-effective backup solution for a company s 500MB source code repository of proprietary and sensitive applications. The repository runs on Linux and backs up daily to tape. Tape backups are stored for 1 year.

The current solution is not meeting the company s needs because it is a manual process that is prone to error, expensive to maintain, and does not meet the need for a Recovery Point Objective (RPO) of 1 hour or Recovery Time Objective (RTO) of 2 hours. The new disaster recovery requirement is for backups to be stored offsite and to be able to restore a single file if needed.

Which solution meets the customer s needs for RTO, RPO, and disaster recovery with the LEAST effort and expense?

Replace local tapes with an AWS Storage Gateway virtual tape library to integrate with current backup software. Run backups nightly and store the virtual tapes on Amazon S3 standard storage in US-EAST-1. Use cross-region replication to create a second copy in US-WEST-2. Use Amazon S3 lifecycle policies to perform automatic migration to Amazon Glacier and deletion of expired backups after 1 year.

Configure the local source code repository to synchronize files to an AWS Storage Gateway file Amazon gateway to store backup copies in an Amazon S3 Standard bucket. Enable versioning on the Amazon S3 bucket. Create Amazon S3 lifecycle policies to automatically migrate old versions of objects to Amazon S3 Standard - Infrequent Access, then Amazon Glacier, then delete backups after 1 year.

Replace the local source code repository storage with a Storage Gateway stored volume. Change the default snapshot frequency to 1 hour. Use Amazon S3 lifecycle policies to archive snapshots to Amazon Glacier and remove old snapshots after 1 year. Use cross-region replication to create a copy of the snapshots in US-WEST-2.

Replace the local source code repository storage with a Storage Gateway cached volume. Create a snapshot schedule to take hourly snapshots. Use an Amazon CloudWatch Events schedule expression rule to run an hourly AWS Lambda task to copy snapshots from US-EAST -1 to US-WEST-2.

Designing highly available, cost-efficient, fault-tolerant, scalable systems Implementing cost control strategies

How to design a highly available, stateless, REST service with multiple persistent storage layers and low costs?

Single Choice

A Solutions Architect must design a highly available, stateless, REST service. The service will require multiple persistent storage layers for service object meta information and the delivery of content. Each request needs to be authenticated and securely processed. There is a requirement to keep costs as low as possible.

How can these requirements be met?

Use AWS Fargate to host a container that runs a self-contained REST service. Set up an Amazon ECS service that is fronted by an Application Load Balancer (ALB). Use a custom authenticator to control access to the API. Store request meta information in Amazon DynamoDB with Auto Scaling and static content in a secured S3 bucket. Make secure signed requests for Amazon S3 objects and proxy the data through the REST service interface.

Use AWS Fargate to host a container that runs a self-contained REST service. Set up an ECS service that is fronted by a cross-zone ALB. Use an Amazon Cognito user pool to control access to the API. Store request meta information in DynamoDB with Auto Scaling and static content in a secured S3 bucket. Generate presigned URLs when returning references to content stored in Amazon S3.

Set up Amazon API Gateway and create the required API resources and methods. Use an Amazon Cognito user pool to control access to the API. Configure the methods to use AWS Lambda proxy integrations, and process each resource with a unique AWS Lambda function. Store request meta information in DynamoDB with Auto Scaling and static content in a secured S3 bucket. Generate presigned URLs when returning references to content stored in Amazon S3.

Set up Amazon API Gateway and create the required API resources and methods. Use an Amazon API Gateway custom authorizer to control access to the API. Configure the methods to use AWS Lambda custom integrations, and process each resource with a unique Lambda function. Store request meta information in an Amazon ElastiCache Multi-AZ cluster and static content in a secured S3 bucket. Generate presigned URLs when returning references to content stored in Amazon S3.

Designing highly available, cost-efficient, fault-tolerant, scalable systems Designing for security and compliance

What is the most efficient option for implementing a secure and audit-ready patching plan for a mixed fleet of Windows and Linux servers?

Single Choice

A Solutions Architect must establish a patching plan for a large mixed fleet of Windows and Linux servers. The patching plan must be implemented securely, be audit-ready, and comply with the company s business requirements.

Which option will meet these requirements with MINIMAL effort?

Install and use an OS-native patching service to manage the update frequency and release approval for all instances. Use AWS Config to verify the OS state on each instance and report on any patch compliance issues.

Use AWS Systems Manager on all instances to manage patching. Test patches outside of production and then deploy during a maintenance window with the appropriate approval.

Use AWS OpsWorks for Chef Automate to run a set of scripts that will iterate through all instances of a given type. Issue the appropriate OS command to get and install updates on each instance, including any required restarts during the maintenance window.

Migrate all applications to AWS OpsWorks and use OpsWorks automatic patching support to keep the OS up-to-date following the initial installation. Use AWS Config to provide audit and compliance reporting.

Designing enterprise-wide scalable operations on AWS Designing for security and compliance

How to implement a highly available architecture for an Amazon RDS for PostgreSQL database?

Multiple Choice

A solutions architect must implement a multi-Region architecture for an Amazon RDS for PostgreSQL database that supports a web application. The database launches from an AWS CloudFormation template that includes AWS services and features that are present in both the primary and secondary Regions.

The database is configured for automated backups, and it has an RTO of 15 minutes and an RPO of 2 hours. The web application is configured to use an Amazon Route 53 record to route traffic to the database.

Which combination of steps will result in a highly available architecture that meets all the requirements? (Choose two.)

Create a cross-Region read replica of the database in the secondary Region. Configure an AWS Lambda function in the secondary Region to promote the read replica during failover event.

In the primary Region, create a health check on the database that will invoke an AWS Lambda function when a failure is detected. Program the Lambda function to recreate the database from the latest database snapshot in the secondary Region and update the Route 53 host records for the database.

Create an AWS Lambda function to copy the latest automated backup to the secondary Region every 2 hours.

Create a failover routing policy in Route 53 for the database DNS record. Set the primary and secondary endpoints to the endpoints in each Region.

Create a hot standby database in the secondary Region. Use an AWS Lambda function to restore the secondary database to the latest RDS automatic backup in the event that the primary database fails.

Designing highly available, cost-efficient, fault-tolerant, scalable systems Designing enterprise-wide scalable operations on AWS

What is the fastest and most cost-effective way to migrate a 70 TB web application with static files?

Single Choice

A Solutions Architect must migrate an existing on-premises web application with 70 TB of static files supporting a public open-data initiative. The Architect wants to upgrade to the latest version of the host operating system as part of the migration effort.

Which is the FASTEST and MOST cost-effective way to perform the migration?

Run a physical-to-virtual conversion on the application server. Transfer the server image over the internet, and transfer the static data to Amazon S3.

Run a physical-to-virtual conversion on the application server. Transfer the server image over AWS Direct Connect, and transfer the static data to Amazon S3.

Re-platform the server to Amazon EC2, and use AWS Snowball to transfer the static data to Amazon S3.

Re-platform the server by using the AWS Server Migration Service to move the code and data to a new Amazon EC2 instance.

Migrating complex, multi-tier applications on AWS Designing enterprise-wide scalable operations on AWS

What is the next step to complete the update after creating an identical environment for blue/green deployment in AWS Elastic Beanstalk?

Single Choice

A Solutions Architect must update an application environment within AWS Elastic Beanstalk using a blue/green deployment methodology. The Solutions Architect creates an environment that is identical to the existing application environment and deploys the application to the new environment.
What should be done next to complete the update?

Redirect to the new environment using Amazon Route 53

Select the Swap Environment URLs option

Replace the Auto Scaling launch configuration

Update the DNS records to point to the green environment

Designing highly available, cost-efficient, fault-tolerant, scalable systems

What is the most cost-effective migration recommendation for a company's on-premises data processing application to AWS Cloud?

Single Choice

A solutions architect needs to advise a company on how to migrate its on-premises data processing application to the AWS Cloud. Currently, users upload input files through a web portal. The web server then stores the uploaded files on NAS and messages the processing server over a message queue. Each media file can take up to 1 hour to process. The company has determined that the number of media files awaiting processing is significantly higher during business hours, with the number of files rapidly declining after business hours.

What is the MOST cost-effective migration recommendation?

Create a queue using Amazon SQS. Configure the existing web server to publish to the new queue. When there are messages in the queue, invoke an AWS Lambda function to pull requests from the queue and process the files. Store the processed files in an Amazon S3 bucket.

Create a queue using Amazon MQ. Configure the existing web server to publish to the new queue. When there are messages in the queue, create a new Amazon EC2 instance to pull requests from the queue and process the files. Store the processed files in Amazon EFS. Shut down the EC2 instance after the task is complete.

Create a queue using Amazon MQ. Configure the existing web server to publish to the new queue. When there are messages in the queue, invoke an AWS Lambda function to pull requests from the queue and process the files. Store the processed files in Amazon EFS.

Create a queue using Amazon SQS. Configure the existing web server to publish to the new queue. Use Amazon EC2 instances in an EC2 Auto Seating group to pull requests from the queue and process the files. Scale the EC2 instances based on the SQS queue length. Store the processed files in an Amazon S3 bucket.

Implementing cost control strategies

Which steps will meet the requirements for a reference architecture for three-tier applications with high availability and disaster recovery in AWS?

Multiple Choice

A solutions architect needs to define a reference architecture for a solution for three-tier applications with web, application, and NoSQL data layers. The reference architecture must meet the following requirements:

• High availability within an AWS Region
• Able to fail over in 1 minute to another AWS Region for disaster recovery
• Provide the most efficient solution while minimizing the impact on the user experience

Which combination of steps will meet these requirements? (Choose three.)

Use an Amazon Route 53 weighted routing policy set to 100/0 across the two selected Regions. Set Time to Live (TTL) to 1 hour.

Use an Amazon Route 53 failover routing policy for failover from the primary Region to the disaster recovery Region. Set Time to Live (TTL) to 30 seconds.

Use a global table within Amazon DynamoDB so data can be accessed in the two selected Regions.

Back up data from an Amazon DynamoDB table in the primary Region every 60 minutes and then write the data to Amazon S3. Use S3 cross-Region replication to copy the data from the primary Region to the disaster recovery Region. Have a script import the data into DynamoDB in a disaster recovery scenario.

Implement a hot standby model using Auto Scaling groups for the web and application layers across multiple Availability Zones in the Regions. Use zonal Reserved Instances for the minimum number of servers and On-Demand Instances for any additional resources.

Use Auto Scaling groups for the web and application layers across multiple Availability Zones in the Regions. Use Spot Instances for the required resources.

Designing highly available, cost-efficient, fault-tolerant, scalable systems Designing enterprise-wide scalable operations on AWS

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Amazon (SAP-C01) Exam Questions And Answers page 49

What is the most cost-effective solution for reducing costs while maintaining reliability in a web application redesign using Amazon API Gateway and AWS Lambda?

Comments

How Can Route 53 Failover to us-east-1 When eu-central-1 RDS Is Inaccessible?

Comments

What is the most cost-effective solution for a company's backup needs with specific RTO and RPO requirements?

Correct Answer:

References:

Comments

How to design a highly available, stateless, REST service with multiple persistent storage layers and low costs?

Comments

What is the most efficient option for implementing a secure and audit-ready patching plan for a mixed fleet of Windows and Linux servers?

Correct Answer:

Explanation:

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How to implement a highly available architecture for an Amazon RDS for PostgreSQL database?

Correct Answers:

Explanation:

References:

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What is the fastest and most cost-effective way to migrate a 70 TB web application with static files?

Comments

What is the next step to complete the update after creating an identical environment for blue/green deployment in AWS Elastic Beanstalk?

Correct Answer:

References:

Comments

What is the most cost-effective migration recommendation for a company's on-premises data processing application to AWS Cloud?

Comments

Which steps will meet the requirements for a reference architecture for three-tier applications with high availability and disaster recovery in AWS?

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