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[General] Valid AWS-Solutions-Architect-Professional Exam Objectives | AWS-Solutions-Archi

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【General】 Valid AWS-Solutions-Architect-Professional Exam Objectives | AWS-Solutions-Archi

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Amazon AWS Certified Solutions Architect - Professional Sample Questions (Q111-Q116):NEW QUESTION # 111
A customer has a 10 GB AWS Direct Connect connection to an AWS region where they have a web
application hosted on Amazon Elastic Computer Cloud (EC2). The application has dependencies on an
on-premises mainframe database that uses a BASE (Basic Available. Sort stale Eventual consistency)
rather than an ACID (Atomicity. Consistency isolation. Durability) consistency model. The application is
exhibiting undesirable behavior because the database is not able to handle the volume of writes. How can
you reduce the load on your on-premises database resources in the most cost-effective way?
  • A. Provision an RDS read-replica database on AWS to handle the writes and synchronize the two
    databases using Data Pipeline.
  • B. Modify the application to use DynamoDB to feed an EMR cluster which uses a map function to write to
    the on-premises database.
  • C. Modify the application to write to an Amazon SQS queue and develop a worker process to flush the
    queue to the on-premises database.
  • D. Use an Amazon Elastic Map Reduce (EMR) S3DistCp as a synchronization mechanism between the
    on-premises database and a Hadoop cluster on AWS.
Answer: D

NEW QUESTION # 112
A company has an Amazon EC2 deployment that has the following architecture:
* An application tier that contains 8 m4.xlarge instances
* A Classic Load Balancer
* Amazon S3 as a persistent data store
After one of the EC2 instances fails, users report very slow processing of their requests. A Solutions Architect must recommend design changes to maximize system reliability. The solution must minimize costs.
What should the Solution Architect recommend?
  • A. Change the Classic Load Balancer to an Application Load Balancer
  • B. Migrate the existing EC2 instances to a serverless deployment using AWS Lambda functions
  • C. Replace the application tier with 4 m4.2xlarge instances
  • D. Replace the application tier with m4.large instances in an Auto Scaling group
Answer: A
Explanation:
Explanation
By default, connection draining is enabled for Application Load Balancers but must be enabled for Classic Load Balancers. When Connection Draining is enabled and configured, the process of deregistering an instance from an Elastic Load Balancer gains an additional step. For the duration of the configured timeout, the load balancer will allow existing, in-flight requests made to an instance to complete, but it will not send any new requests to the instance. During this time, the API will report the status of the instance as InService, along with a message stating that "Instance deregistration currently in progress." Once the timeout is reached, any remaining connections will be forcibly closed.
https://docs.aws.amazon.com/auto ... d-balancer-asg.htmlhttps://aws.amazon.com/b

NEW QUESTION # 113
A company is migrating its data centre from on premises to the AWS Cloud. The migration will take several months to complete. The company will use Amazon Route 53 for private DNS zones.
During the migration, the company must Keep its AWS services pointed at the VPC's Route 53 Resolver for DNS. The company also must maintain the ability to resolve addresses from its on-premises DNS server A solutions architect must set up DNS so that Amazon EC2 instances can use native Route 53 endpoints to resolve on-premises DNS queries Which configuration writ meet these requirements?
  • A. Launch an EC2 instance that has DNS BIND installed and configured. Ensure that the security groups that are attached to the EC2 instance can access the on-premises DNS server IP address on port 53.Configure BIND to forward DNS queries to on-premises DNS server IP addresses Configure each migrated EC2 instances DNS settings to point to the BIND server IP address.
  • B. Create a new outbound endpoint in Route 53. and attach me endpoint to the VPC. Ensure that the security groups that are attached to the endpoint can access the on-premises DNS server IP address on port 53 Create a new Route 53 Resolver rule that routes on-premises designated traffic to the on-premises DNS server.
  • C. Create a new private DNS zone in Route 53 with the same domain name as the on-premises domain.Create a single wildcard record with the on-premises DNS server IP address as the record's address.
  • D. Configure Vie VPC DHCP options set to point to on-premises DNS server IP addresses Ensure that security groups for EC2 instances allow outbound access to port 53 on those DNS server IP addresses.
Answer: B

NEW QUESTION # 114
A company has a legacy application that process data in two parts. The second part of the process takes longer than the first, so the company has decided to rewrite the application as two microservices running on Amazon ECS that can scale independently.
How should a solutions architect integrate the microservices?
  • A. Implement code in microservice 1 to send data to Amazon Kinesis Data Firehose. Implement code in microservice 2 to read from Kinesis Data Firehose.
  • B. Implement code in microservice 1 to publish data to an Amazon SNS topic. Implement code in microservice
    2 to subscribe to this topic.
  • C. Implement code in microservice 1 to send data to an Amazon SQS queue. Implement code in microservice
    2 to process messages from the queue.
  • D. Implement code in microservice 1 to send data to an Amazon S3 bucket. Use S3 event notifications to invoke microservice 2.
Answer: A

NEW QUESTION # 115
A solutions architect is designing a solution to connect a company's on-premises network with all the company's current and future VPCs on AWS The company is running VPCs in five different AWS Regions and has at least 15 VPCs in each Region.
The company's AWS usage is constantly increasing and will continue to grow Additionally, all the VPCs throughout all five Regions must be able to communicate with each other The solution must maximize scalability and ease of management Which solution meets these requirements'?
  • A. Set up a transit gateway in each Region Establish a redundant AWS Site-to-Site VPN connection between the on-premises firewalls and the transit gateway in the Region that is closest to the on-premises network Peer all the transit gateways with each other Connect all the VPCs to the transit gateway in their Region
  • B. Create an AWS CloudFormation template for a redundant AWS Site-to-Site VPN tunnel to the on-premises network Deploy the CloudFormation template for each VPC Route traffic between the different Regions through the company's on-premises firewalls
  • C. Set up a transit gateway in each Region Establish a redundant AWS Site-to-Site VPN connection between the on-premises firewalls and each transit gateway Route traffic between the different Regions through the company's on-premises firewalls Connect all the VPCs to the transit gateway in their Region
  • D. Create an AWS CloudFormation template for a redundant AWS Site-to-Site VPN tunnel to the on-premises network Deploy the CloudFormation template for each VPC Set up VPC peering between all the VPCs for VPC-to-VPC communication
Answer: D

NEW QUESTION # 116
......
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