SAA-C03資格練習、SAA-C03ブロンズ教材

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Amazon SAA-C03試験は、Amazon Web Services（AWS）プラットフォームにスケーラブルで高度に利用可能な、フォールトトレラントシステムを設計および展開するために必要なスキルと知識を検証する認定テストです。この試験は、AWS認定ソリューションアーキテクトになろうとしている個人を対象としています。 SAA-C03試験では、AWSインフラストラクチャ、セキュリティ、ネットワーキング、ストレージサービスなど、幅広いトピックをカバーしています。

Amazon SAA-C03認定を取得するためには、候補者はEC2、S3、RDS、VPC、Route 53など、さまざまなAWSサービスの熟練度を証明する必要があります。候補者は、AWS上でスケーラブルで高可用性かつ耐障害性のシステムを設計および展開するための少なくとも1年の実践経験が必要です。SAA-C03認定試験は65問の複数選択式および複数回答式問題から構成され、候補者は130分間で試験を完了する必要があります。試験の合格点は1000点中720点です。Amazon SAA-C03認定を取得することは、候補者のAWSにおける専門知識を正当化するだけでなく、クラウドコンピューティングの最新のトレンドやベストプラクティスに対する取り組みを示すことを示します。

>> SAA-C03資格練習 <<

SAA-C03試験の準備方法｜信頼できるSAA-C03資格練習試験｜高品質なAmazon AWS Certified Solutions Architect - Associate (SAA-C03) Examブロンズ教材

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Amazon SAA-C03試験は、AWS上でスケーラブルで耐障害性のあるシステムを設計・展開する個人の技術的な専門知識を検証する認定試験です。この試験は、候補者のAWSサービスに関する知識と、AWS上で高可用性でコスト効果の高いスケーラブルなシステムを設計・展開する能力を試験します。この試験に合格した候補者は、AWS上で堅牢で拡張性のあるシステムを設計・展開する能力を証明し、雇用主から高く評価されます。試験の準備には、AWSのトレーニングコースに登録し、AWSのドキュメントを読み、AWSサービスを実践する必要があります。

Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam 認定 SAA-C03 試験問題 (Q767-Q772):

質問 # 767
A company is running a publicly accessible serverless application that uses Amazon API Gateway and AWS Lambda. The application's traffic recently spiked due to fraudulent requests from botnets.
Which steps should a solutions architect take to block requests from unauthorized users? (Select TWO.)

A. Implement an AWS WAF rule to target malicious requests and trigger actions to filter them out.
B. Create a usage plan with an API key that is shared with genuine users only.
C. Convert the existing public API to a private API. Update the DNS records to redirect users to the new API endpoint.
D. Integrate logic within the Lambda function to ignore the requests from fraudulent IP addresses.
E. Create an IAM role for each user attempting to access the API. A user will assume the role when making the API call.

正解：A、B

解説：
https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-api-usage-plans.html#:~:text=Don%
https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-api-usage-plans.html

質問 # 768
A solutions architect must design a solution that uses Amazon CloudFront with an Amazon S3 origin to store a static website. The company's security policy requires that all website traffic be inspected by AWS WAR How should the solutions architect comply with these requirements?

A. Configure an S3 bucket policy lo accept requests coming from the AWS WAF Amazon Resource Name (ARN) only.
B. Configure a security group that allows Amazon CloudFront IP addresses to access Amazon S3 only.
Associate AWS WAF to CloudFront.
C. Configure Amazon CloudFront and Amazon S3 to use an origin access identity (OAI) to restrict access to the S3 bucket. Enable AWS WAF on the distribution.
D. Configure Amazon CloudFront to forward all incoming requests to AWS WAF before requesting content from the S3 origin.

正解：C

解説：
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-restricting-access-to- s3.html
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/distribution-web-awswaf.html

質問 # 769
A company needs to create an Amazon Elastic Kubernetes Service (Amazon EKS) cluster to host a digital media streaming application. The EKS cluster will use a managed node group that is backed by Amazon Elastic Block Store (Amazon EBS) volumes for storage. The company must encrypt all data at rest by using a customer managed key that is stored in AWS Key Management Service (AWS KMS) Which combination of actions will meet this requirement with the LEAST operational overhead? (Select TWO.)

A. After creation of the EKS cluster, locate the EBS volumes. Enable encryption by using the customer managed key.
B. Enable EBS encryption by default in the AWS Region where the EKS cluster will be created. Select the customer managed key as the default key.
C. Store the customer managed key as a Kubernetes secret in the EKS cluster. Use the customer managed key to encrypt the EBS volumes.
D. Create the EKS cluster Create an IAM role that has cuwlicy that grants permission to the customer managed key. Associate the role with the EKS cluster.
E. Use a Kubernetes plugin that uses the customer managed key to perform data encryption.

正解：B、D

解説：
EBS encryption by default is a feature that enables encryption for all new EBS volumes and snapshots created in a Region1. EBS encryption by default uses a service managed key or a customer managed key that is stored in AWS KMS1. EBS encryption by default is suitable for scenarios where data at rest must be encrypted by using a customer managed key, such as the digital media streaming application in the scenario1.
To meet the requirements of the scenario, the solutions architect should enable EBS encryption by default in the AWS Region where the EKS cluster will be created. The solutions architect should select the customer managed key as the default key for encryption1. This way, all new EBS volumes and snapshots created in that Region will be encrypted by using the customer managed key.
EKS encryption provider support is a feature that enables envelope encryption of Kubernetes secrets in EKS with a customer managed key that is stored in AWS KMS2. Envelope encryption means that data is encrypted by data encryption keys (DEKs) using AES-GCM; DEKs are encrypted by key encryption keys (KEKs) according to configuration in AWS KMS3. EKS encryption provider support is suitable for scenarios where secrets must be encrypted by using a customer managed key, such as the digital media streaming application in the scenario2.
To meet the requirements of the scenario, the solutions architect should create the EKS cluster and create an IAM role that has a policy that grants permission to the customer managed key. The solutions architect should associate the role with the EKS cluster2. This way, the EKS cluster can use envelope encryption of Kubernetes secrets with the customer managed key.

質問 # 770
A company developed a web application and deployed it on a fleet of EC2 instances that uses Amazon SQS. The requests are saved as messages in the SQS queue, which is configured with the maximum message retention period. However, after thirteen days of operation, the web application suddenly crashed and there are 10,000 unprocessed messages that are still waiting in the queue. Since they developed the application, they can easily resolve the issue but they need to send a communication to the users on the issue.
What information should they provide and what will happen to the unprocessed messages?

A. Tell the users that unfortunately, they have to resubmit all the requests again.
B. Tell the users that the application will be operational shortly however, requests sent over three days ago will need to be resubmitted.
C. Tell the users that the application will be operational shortly and all received requests will be processed after the web application is restarted.
D. Tell the users that unfortunately, they have to resubmit all of the requests since the queue would not be able to process the 10,000 messages together.

正解：C

解説：
In Amazon SQS, you can configure the message retention period to a value from 1 minute to 14 days.
The default is 4 days. Once the message retention limit is reached, your messages are automatically deleted.
A single Amazon SQS message queue can contain an unlimited number of messages. However, there is a 120,000 limit for the number of inflight messages for a standard queue and 20,000 for a FIFO queue.
Messages are inflight after they have been received from the queue by a consuming component, but have not yet been deleted from the queue.
In this scenario, it is stated that the SQS queue is configured with the maximum message retention period. The maximum message retention in SQS is 14 days that is why the option that says: Tell the users that the application will be operational shortly and all received requests will be processed after the web application is restarted is the correct answer i.e. there will be no missing messages.
The options that say: Tell the users that unfortunately, they have to resubmit all the requests again and Tell the users that the application will be operational shortly, however, requests sent over three days ago will need to be resubmitted are incorrect as there are no missing messages in the queue thus, there is no need to resubmit any previous requests.
The option that says: Tell the users that unfortunately, they have to resubmit all of the requests since the queue would not be able to process the 10,000 messages together is incorrect as the queue can contain an unlimited number of messages, not just 10,000 messages.
Reference:
https://aws.amazon.com/sqs/
Check out this Amazon SQS Cheat Sheet:
https://tutorialsdojo.com/amazon-sqs/

質問 # 771
A company hosts a two-tier application on Amazon EC2 instances and Amazon RDS. The application's demand varies based on the time of day. The load is minimal after work hours and on weekends. The EC2 instances run in an EC2 Auto Scaling group that is configured with a minimum of two instances and a maximum of five instances. The application must be available at all times, but the company is concerned about overall cost.
Which solution meets the availability requirement MOST cost-effectively?

A. Purchase EC2 Instance Savings Plans to cover two EC2 instances. Use up to three additional EC2 On-Demand Instances as needed. Purchase an RDS Reserved DB Instance.
B. Use all EC2 Spot Instances. Stop the RDS database when it is not in use.
C. Purchase two EC2 Reserved Instances Use up to three additional EC2 Spot Instances as needed. Stop the RDS database when it is not in use.
D. Purchase EC2 Instance Savings Plans to cover five EC2 instances. Purchase an RDS Reserved DB Instance

正解：C

解説：
Explanation
This solution meets the requirements of a two-tier application that has a variable demand based on the time of day and must be available at all times, while minimizing the overall cost. EC2 Reserved Instances can provide significant savings compared to On-Demand Instances for the baseline level of usage, and they can guarantee capacity reservation when needed. EC2 Spot Instances can provide up to 90% savings compared to On-Demand Instances for any additional capacity that the application needs during peak hours. Spot Instances are suitable for stateless applications that can tolerate interruptions and can be replaced by other instances.
Stopping the RDS database when it is not in use can reduce the cost of running the database tier.
Option A is incorrect because using all EC2 Spot Instances can affect the availability of the application if there are not enough spare capacity or if the Spot price exceeds the maximum price. Stopping the RDS database when it is not in use can reduce the cost of running the database tier, but it can also affect the availability of the application. Option B is incorrect because purchasing EC2 Instance Savings Plans to cover five EC2 instances can lock in a fixed amount of compute usage per hour, which may not match the actual usage pattern of the application. Purchasing an RDS Reserved DB Instance can provide savings for the database tier, but it does not allow stopping the database when it is not in use. Option D is incorrect because purchasing EC2 Instance Savings Plans to cover two EC2 instances can lock in a fixed amount of compute usage per hour, which may not match the actual usage pattern of the application. Using up to three additional EC2 On-Demand Instances as needed can incur higher costs than using Spot Instances.
References:
* https://aws.amazon.com/ec2/pricing/reserved-instances/
* https://aws.amazon.com/ec2/spot/
* https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_StopInstance.html

質問 # 772
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