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The AWS Certified Solutions Architect - Professional certification exam is intended for solution architects and design engineers who have at least two years of hands-on experience designing and deploying scalable and fault-tolerant systems on AWS. AWS Certified Solutions Architect - Professional certification exam covers a wide range of topics, including AWS services and their use cases, design patterns, architectural best practices, security and compliance, performance optimization, and cost optimization.

Achieving the AWS-Solutions-Architect-Professional Certification demonstrates a high level of expertise and proficiency in AWS architecture and design. AWS Certified Solutions Architect - Professional certification can help professionals advance their careers and increase their earning potential by demonstrating their ability to design, deploy, and manage complex AWS systems.

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The AWS Certified Solutions Architect – Professional certification exam is a highly sought-after certification in the IT industry. AWS Certified Solutions Architect - Professional certification is designed for professionals who have a deep understanding of AWS architecture, design principles, and best practices. It is an advanced-level exam that tests an individual’s technical skills, experience, and knowledge in designing and deploying scalable, highly available, and fault-tolerant systems on AWS.

Amazon AWS Certified Solutions Architect - Professional Sample Questions (Q83-Q88):

NEW QUESTION # 83
An online retailer needs to regularly process large product catalogs, which are handled in batches. These are sent out to be processed by people using the Amazon Mechanical Turk service, but the retailer has asked its Solutions Architect to design a workflow orchestration system that allows it to handle multiple concurrent Mechanical Turk operations, deal with the result assessment process, and reprocess failures.
Which of the following options gives the retailer the ability to interrogate the state of every workflow with the LEAST amount of implementation effort?

A. Use Amazon SWF to create a workflow that handles a single batch of catalog records with multiple worker tasks to extract the data, transform it, and send it through Mechanical Turk. Use Amazon ES and Kibana to visualize AWS Lambda processing logs to see the workflow states.
B. Hold workflow information in an Amazon RDS instance with AWS Lambda functions polling RDS for status changes. Worker Lambda functions then process the next workflow steps. Amazon QuickSight will visualize workflow states directly out of Amazon RDS.
C. Trigger Amazon CloudWatch alarms based upon message visibility in multiple Amazon SQS queues (one queue per workflow stage) and send messages via Amazon SNS to trigger AWS Lambda functions to process the next step. Use Amazon ES and Kibana to visualize Lambda processing logs to see the workflow states.
D. Build the workflow in AWS Step Functions, using it to orchestrate multiple concurrent workflows. The status of each workflow can be visualized in the AWS Management Console, and historical data can be written to Amazon S3 and visualized using Amazon QuickSight.

Answer: D

Explanation:
Explanation
AWS Step Functions is a fully managed service that makes it easy to coordinate the components of distributed applications and microservices using visual workflows. Instead of writing a Decider program, you define state machines in JSON. AWS customers should consider using Step Functions for new applications.
If Step Functions does not fit your needs, then you should consider Amazon Simple Workflow (SWF).
Amazon SWF provides you complete control over your orchestration logic, but increases the complexity of developing applications. You may write decider programs in the programming language of your choice, or you may use the Flow framework to use programming constructs that structure asynchronous interactions for you. AWS will continue to provide the Amazon SWF service, Flow framework, and support all Amazon SWF customers. https://aws.amazon.com/swf/faqs/

NEW QUESTION # 84
A company is running an email application across multiple AWS Regions. The company uses Ohio (us- east-2) as the primary Region and Northern Virginia (us-east-1) as the Disaster Recovery (DR) Region. The data is continuously replicated from the primary Region to the DR Region by a single instance on the public subnet in both Regions. The replication messages between the Regions have a significant backlog during certain times of the day. The backlog clears on its own after a short time, but it affects the application's RPO.
Which of the following solutions should help remediate this performance problem? (Select TWO)

A. Change the DR Region to Oregon (us-west-2) instead of the current DR Region.
B. Use multiple instances on the primary and DR Regions to send and receive the replication data.
C. Increase the size of the instances.
D. Attach an additional elastic network interface to each of the instances in both Regions and set up load balancing between the network interfaces.
E. Have the instance in the primary Region write the data to an Amazon SQS queue in the primary Region instead, and have the instance in the DR Region poll from this queue.

Answer: B,E

Explanation:
The problem here is the question did not state why is the replication slow? Is it network or compute?
A/C: This will address the network or compute shortages.
B: Not sure if this is feasible since this is an email application. Also assuming that both instances are of the same size, would this help if it is the network that is congested?
D: Not feasible.
E: Load balancing is not possible.

NEW QUESTION # 85
A company is planning to migrate an existing high performance computing (HPE) solution to the AWS Cloud.
The existing solution consists of a 12-node cluster running Linux with high speed interconnectivity developed on a single rack. A solution architect needs to optimize the performance of the HPE cluster.
Which combination of steps will meet these requirements? (Select TWO.)

A. Deploy instances across at least three Availability Zones
B. Deploy Amazon EC2 instances in a placement group
C. Enable CPU hypertheading
D. Use Amazon EC2 instances that support burstable performance
E. Use Amazon EC2 instances that support Elastic Fabric Adapter (EFA)

Answer: B,C

NEW QUESTION # 86
An organization is planning to use NoSQL DB for its scalable data needs. The organization wants to host an application securely in AWS VPC. What action can be recommended to the organization?

A. The organization should use a DynamoDB while creating a table within the public subnet.
B. The organization should setup their own NoSQL cluster on the AWS instance and configure route tables and subnets.
C. The organization should use a DynamoDB while creating a table within a private subnet.
D. The organization should only use a DynamoDB because by default it is always a part of the default subnet provided by AWS.

Answer: B

Explanation:
The Amazon Virtual Private Cloud (Amazon VPC) allows the user to define a virtual networking environment in a private, isolated section of the Amazon Web Services (AWS) cloud. The user has complete control over the virtual networking environment. Currently VPC does not support DynamoDB. Thus, if the user wants to implement VPC, he has to setup his own NoSQL DB within the VPC. http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Introduction.html

NEW QUESTION # 87
A company manages more than 200 separate internet-facing web applications. All of the applications are deployed to AWS in a single AWS Region The fully qualified domain names (FQDNs) of all of the applications are made available through HTTPS using Application Load Balancers (ALBs). The ALBs are configured to use public SSL/TLS certificates.
A Solutions Architect needs to migrate the web applications to a multi-region architecture. All HTTPS services should continue to work without interruption.
Which approach meets these requirements?

A. Request a certificate for each FQDN using AWS KMS. Associate the certificates with the ALBs in the primary AWS Region. Enable cross-region availability in AWS KMS for the certificates and associate the certificates with the ALBs in the secondary AWS Region.
B. Request a certificate for each FQDN using AWS Certificate Manager. Associate the certificates with the ALBs in both the primary and secondary AWS Regions.
C. Request certificates for each FQDN in both the primary and secondary AWS Regions using AWS Certificate Manager. Associate the certificates with the corresponding ALBs in each AWS Region.
D. Generate the key pairs and certificate requests for each FQDN using AWS KMS. Associate the certificates with the ALBs in both the primary and secondary AWS Regions.

Answer: D

NEW QUESTION # 88
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