AWS Certified Solutions Architect - Associate

• #581

  You are signed in as root user on your account but there is an Amazon S3 bucket under your account that you cannot access. What is a possible reason for this?

  • AAn IAM user assigned a bucket policy to an Amazon S3 bucket and didn't specify the root user as a principal
  • BThe S3 bucket is full.
  • CThe S3 bucket has reached the maximum number of objects allowed.
  • DYou are in the wrong Availability Zone.
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• #582

  A user has configured ELB with two EBS backed EC2 instances. The user is trying to understand the DNS access and IP support for ELB. Which of the below mentioned statements may not help the user understand the IP mechanism supported by ELB?

  • AThe client can connect over IPV4 or IPV6 using Dualstack.
  • BCommunication between the load balancer and back-end instances is always through IPV4.
  • CELB DNS supports both IPV4 and IPV6.
  • DThe ELB supports either IPV4 or IPV6 but not both.
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• #583

  You have an application running on an Amazon Elastic Compute Cloud instance, that uploads 5 GB video objects to Amazon Simple Storage Service (S3). Video uploads are taking longer than expected, resulting in poor application performance. Which method will help improve performance of your application?

  • AEnable enhanced networking.
  • BUse Amazon S3 multipart upload.
  • CLeveraging Amazon CloudFront, use the HTTP POST method to reduce latency.
  • DUse Amazon Elastic Block Store Provisioned IOPs and use an Amazon EBS-optimized instance.
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• #584

  Please select the Amazon EC2 resource which can be tagged.

  • AKey pairs.
  • BElastic IP addresses.
  • CPlacement groups.
  • DAmazon EBS snapshots.
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• #585

  A user has launched one EC2 instance in the US West region. The user wants to access the RDS instance launched in the US East region from that EC2 instance. How can the user configure the access for that EC2 instance?

  • AConfigure the IP range of the US West region instance as the ingress security rule of RDS.
  • BIt is not possible to access RDS of the US East region from the US West region.
  • COpen the security group of the US West region in the RDS security group's ingress rule.
  • DCreate an IAM role which has access to RDS and launch an instance in the US West region with it.
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• #586

  Amazon SWF is designed to help users …

  • ADesign graphical user interface interactions.
  • BManage user identification and authorization.
  • CStore Web content.
  • DCoordinate synchronous and asynchronous tasks which are distributed and fault tolerant.
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• #587

  [...] is a fast, flexible, fully managed push messaging service.

  • AAmazon SNS.
  • BAmazon SES.
  • CAmazon SQS.
  • DAmazon FPS.
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• #588

  Typically, you want your application to check whether a request generated an error before you spend any time processing results. The easiest way to find out if an error occurred is to look for an [...] node in the response from the Amazon RDS API.

  • Aincorrect.
  • Berror.
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• #589

  A user has created photo editing software and hosted it on EC2. The software accepts requests from the user about the photo format and resolution and sends a message to S3 to enhance the picture accordingly. Which of the below mentioned AWS services will help make a scalable software with the AWS infrastructure in this scenario?

  • AAWS Simple Notification Service.
  • BAWS Simple Queue Service.
  • CAWS Elastic Transcoder.
  • DAWS Glacier.
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• #590Choose 2

  A company runs an ecommerce application on AWS. Amazon EC2 instances process purchases and store the purchase details in an Amazon Aurora PostgreSQL DB cluster. Customers are experiencing application timeouts during times of peak usage. A solutions architect needs to rearchitect the application so that the application can scale to meet peak usage demands. Which combination of actions will meet these requirements MOST cost-effectively? (Choose two.)

  • AConfigure an Auto Scaling group of new EC2 instances to retry the purchases until the processing is complete. Update the applications to connect to the DB cluster by using Amazon RDS Proxy.
  • BConfigure the application to use an Amazon ElastiCache cluster in front of the Aurora PostgreSQL DB cluster.
  • CUpdate the application to send the purchase requests to an Amazon Simple Queue Service (Amazon SQS) queue. Configure an Auto Scaling group of new EC2 instances that read from the SQS queue.
  • DConfigure an AWS Lambda function to retry the ticket purchases until the processing is complete.
  • EConfigure an Amazon AP! Gateway REST API with a usage plan.
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• #591

  A company runs an ecommerce application on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group across multiple Availability Zones. The Auto Scaling group scales based on CPU utilization metrics. The ecommerce application stores the transaction data in a MySQL 8.0 database that is hosted on a large EC2 instance. The database's performance degrades quickly as application load increases. The application handles more read requests than write transactions. The company wants a solution that will automatically scale the database to meet the demand of unpredictable read workloads while maintaining high availability. Which solution will meet these requirements?

  • AUse Amazon Redshift with a single node for leader and compute functionality.
  • BUse Amazon RDS with a Single-AZ deployment Configure Amazon RDS to add reader instances in a different Availability Zone.
  • CUse Amazon Aurora with a Multi-AZ deployment. Configure Aurora Auto Scaling with Aurora Replicas.
  • DUse Amazon ElastiCache for Memcached with EC2 Spot Instances.
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• #592

  You have a video transcoding application running on Amazon EC2. Each instance polls a queue to find out which video should be transcoded, and then runs a transcoding process. If this process is interrupted, the video will be transcoded by another instance based on the queuing system. You have a large backlog of videos which need to be transcoded and would like to reduce this backlog by adding more instances. You will need these instances only until the backlog is reduced. Which type of Amazon EC2 instances should you use to reduce the backlog in the most cost efficient way?

  • AReserved instances.
  • BSpot instances.
  • CDedicated instances.
  • DOn-demand instances.
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• #593

  What does Amazon SWF stand for?

  • ASimple Web Flow.
  • BSimple Work Flow.
  • CSimple Wireless Forms.
  • DSimple Web Form.
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• #594

  A development team needs to host a website that will be accessed by other teams. The website contents consist of HTML, CSS, client-side JavaScript, and images. Which method is the MOST cost-effective for hosting the website?

  • AContainerize the website and host it in AWS Fargate.
  • BCreate an Amazon S3 bucket and host the website there.
  • CDeploy a web server on an Amazon EC2 instance to host the website.
  • DConfigure an Application Load Balancer with an AWS Lambda target that uses the Express.js framework.
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• #595

  Which of the below mentioned options is not available when an instance is launched by Auto Scaling with EC2 Classic?

  • APublic IP.
  • BElastic IP.
  • CPrivate DNS.
  • DPrivate IP.
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• #596

  Doug has created a VPC with CIDR 10.201.0.0/16 in his AWS account. In this VPC he has created a public subnet with CIDR block 10.201.31.0/24. While launching a new EC2 from the console, he is not able to assign the private IP address 10.201.31.6 to this instance. Which is the most likely reason for this issue?

  • APrivate IP address 10.201.31.6 is blocked via ACLs in Amazon infrastructure as a part of platform security.
  • BPrivate address IP 10.201.31.6 is currently assigned to another interface.
  • CPrivate IP address 10.201.31.6 is not part of the associated subnet's IP address range.
  • DPrivate IP address 10.201.31.6 is reserved by Amazon for IP networking purposes.
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• #597

  A company runs an application on Amazon EC2 instances in a private subnet. The application needs to store and retrieve data in Amazon S3 buckets. According to regulatory requirements, the data must not travel across the public internet. What should a solutions architect do to meet these requirements MOST cost-effectively?

  • ADeploy a NAT gateway to access the S3 buckets.
  • BDeploy AWS Storage Gateway to access the S3 buckets.
  • CDeploy an S3 interface endpoint to access the S3 buckets.
  • DDeploy an S3 gateway endpoint to access the S3 buckets.
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• #598

  A friend tells you he is being charged $100 a month to host his WordPress website, and you tell him you can move it to AWS for him and he will only pay a fraction of that, which makes him very happy. He then tells you he is being charged $50 a month for the domain, which is registered with the same people that set it up, and he asks if it's possible to move that to AWS as well. You tell him you aren't sure, but will look into it. Which of the following statements is true in regards to transferring domain names to AWS?

  • AYou can't transfer existing domains to AWS.
  • BYou can transfer existing domains into Amazon Route 53's management.
  • CYou can transfer existing domains via AWS Direct Connect.
  • DYou can transfer existing domains via AWS Import/Export.
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• #599

  Groups can't [...].

  • Abe nested more than 3 levels.
  • Bbe nested at all.
  • Cbe nested more than 4 levels.
  • Dbe nested more than 2 levels.
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• #600

  Regarding Amazon Route 53, if your application is running on Amazon EC2 instances in two or more Amazon EC2 regions and if you have more than one Amazon EC2 instance in one or more regions, you can use [...] to route traffic to the correct region and then use [...] route traffic to instances within the region, based on probabilities that you specify.

  • Aweighted-based routing; alias resource record sets.
  • Blatency-based routing; weighted resource record sets.
  • Cweighted-based routing; weighted resource record sets.
  • Dlatency-based routing; alias resource record sets.
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