SOA-C02の難易度は？試験の内容や受験資格、対策法まで紹介

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SOA-C02試験では、候補者がAWSシステムを設計、展開、管理する能力を測定します。この認定は、EC2、S3、RDS、VPCなどを含むAWSサービスの管理と運用に必要な知識とスキルを検証します。試験は65の複数選択と複数の応答の質問で構成されており、候補者はテストを完了するために130分かかります。

AWS認定ソリューションアーキテクト-プロフェッショナル試験は、130分以内に完了する必要がある65問の多肢選択問題と複数回答問題から構成されています。試験料は150ドルで、認定試験センターで受験することも、遠隔プロクターでオンラインで受験することもできます。この試験に合格することは、AWSサービスに関する専門的な知識と、AWSプラットフォーム上でスケーラブルで高可用性かつ障害耐性のあるシステムを設計・展開する能力を証明することになります。この認定を取得することは、キャリアアップの機会を広げるだけでなく、AWSの分野での継続的な学習と専門的な成長への取り組みを証明することにもつながります。

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Amazon AWS Certified SysOps Administrator - Associate (SOA-C02) 認定 SOA-C02 試験問題 (Q499-Q504):

質問 # 499
A company is running distributed computing software to manage a fleet of 20 Amazon EC2 instances for calculations. The fleet includes 2 control nodes and 18 task nodes to run the calculations. Control nodes can automatically start the task nodes.
Currently, all the nodes run on demand. The control nodes must be available 24 hours a day, 7 days a week.
The task nodes run for 4 hours each day. A SysOps administrator needs to optimize the cost of this solution.
Which combination of actions will meet these requirements? (Choose two.)

A. Use Reserved Instances for the task nodes.
B. Use Spot Instances for the control nodes. Use On-Demand Instances if there is no Spot availability.
C. Use Spot Instances for the task nodes. Use On-Demand Instances if there is no Spot availability.
D. Purchase EC2 Instance Savings Plans for the control nodes.
E. Use Dedicated Hosts for the control nodes.

正解：C、D

解説：
To optimize the cost of a computing environment consisting of control nodes that are always on and task nodes that operate for a limited number of hours each day, consider the following strategies:
Purchase EC2 Instance Savings Plans for the Control Nodes: Since the control nodes are required to be operational 24/7, purchasing EC2 Instance Savings Plans is a cost-effective choice. These plans provide a lower price compared to on-demand instances, in exchange for a commitment to a consistent amount of usage (measured in $/hour) for a one or three-year period.
Use Spot Instances for the Task Nodes: Given that task nodes are used for a shorter duration (4 hours a day) and presumably can tolerate interruptions, using Spot Instances can significantly reduce costs. Spot Instances offer unused EC2 capacity at a fraction of the regular price, which can lead to substantial cost savings.
Additionally, configure the system to fall back to On-Demand Instances during periods when Spot Instances are not available to ensure availability.
This combination leverages cost savings for continuous use and flexible, lower-cost options for intermittent use, optimizing overall operational costs efficiently.

質問 # 500
A team of On-call engineers frequently needs to connect to Amazon EC2 Instances In a private subnet to troubleshoot and run commands. The Instances use either the latest AWS-provided Windows Amazon Machine Images (AMIs) or Amazon Linux AMIs.
The team has an existing IAM role for authorization. A SysOps administrator must provide the team with access to the Instances by granting IAM permissions to this Which solution will meet this requirement?

A. Add a statement to the IAM role policy to allow the ssm:StartSession action on the instances. Instruct the team to use AWS Systems Manager Session Manager to connect to the Instances by using the assumed IAM role.
B. Create a bastion host with an EC2 Instance, and associate the bastion host with the VPC. Add a statement to the IAM role policy to allow the ec2:CreateVpnConnection action on the bastion host.
Instruct the team to use the bastion host endpoint to connect to the instances.
D Create an internet-facing Network Load Balancer. Use two listeners. Forward port 22 to a target group of Linux instances. Forward port 3389 to a target group of Windows Instances. Add a statement to the IAM role policy to allow the ec2:CreateRoute action so that the team can connect to the Instances.
C. Associate an Elastic IP address and a security group with each instance. Add the engineers' IP addresses to the security group inbound rules. Add a statement to the IAM role policy to allow the ec2:
AuthoflzeSecurityGroupIngress action so that the team can connect to the Instances.

正解：A

解説：
Step-by-Step Explanation:
* Understand the Problem:
* Engineers need to connect to EC2 instances in a private subnet for troubleshooting.
* The instances are using Windows or Amazon Linux AMIs.
* The team already has an IAM role for authorization.
* Analyze the Requirements:
* Provide secure and efficient access to the instances without exposing them directly to the internet.
* Utilize existing IAM role for access control.
* Evaluate the Options:
* Option A: Use AWS Systems Manager Session Manager.
* Allows secure and auditable SSH or RDP access to EC2 instances without the need for bastion hosts or opening inbound ports.
* Add a policy to allow the ssm:StartSession action.
* Option B: Use Elastic IP and security group.
* Exposes instances to direct access, increasing security risks.
* Option C: Use a bastion host.
* Requires additional infrastructure and maintenance.
* Option D: Use an internet-facing Network Load Balancer.
* Exposes instances to direct access via load balancer, not ideal for private subnets.
* Select the Best Solution:
* Option A: Using AWS Systems Manager Session Manager is the most secure and efficient solution. It eliminates the need for additional infrastructure and avoids exposing instances to the internet.
References:
* AWS Systems Manager Session Manager
* Controlling Access to Session Manager
AWS Systems Manager Session Manager provides secure and auditable access to EC2 instances in a private subnet using IAM roles.

質問 # 501
A company's SysOps administrator regularly checks the AWS Personal Health Dashboard in each of the company's accounts. The accounts are part of an organization in AWS Organizations. The company recently added 10 more accounts to the organization. The SysOps administrator must consolidate the alerts from each account's Personal Health Dashboard.
Which solution will meet this requirement with the LEAST amount of effort?

A. Configure the Personal Health Dashboard in each account to forward events to a central AWS CloudTrail log.
B. Use the AWS Health API to write events to an Amazon DynamoDB table.
C. Create an AWS Lambda function to query the AWS Health API and to write all events to an Amazon DynamoDB table.
D. Enable organizational view in AWS Health.

正解：D

解説：
Enabling the organizational view in AWS Health will allow the SysOps administrator to consolidate the alerts from each account's Personal Health Dashboard. It will also provide the administrator with a single view of all the accounts in the organization, allowing them to easily monitor the health of all the accounts in the organization.
Reference:
[1] https://aws.amazon.com/premiumsupport/knowledge-center/organizational-view-health-dashboard/

質問 # 502
A company hosts an internal application on Amazon EC2 instances. All application data and requests route through an AWS Site-to-Site VPN connection between the on-premises network and AWS. The company must monitor the application for changes that allow network access outside of the corporate network. Any change that exposes the application externally must be restricted automatically.
Which solution meets these requirements in the MOST operationally efficient manner?

A. Configure AWS Config and a custom rule to monitor whether a security group allows inbound requests from noncorporate CIDR ranges. Create an AWS Systems Manager Automation document to remove any noncorporate CIDR ranges from the application security groups.
B. Create a scheduled Amazon EventBridge (Amazon CloudWatch Events) rule that targets an AWS Systems Manager Automation document to check for public IP addresses on the EC2 instances. If public IP addresses are found on the EC2 instances, initiate another Systems Manager Automation document to terminate the instances.
C. Configure AWS Config and the managed rule for monitoring public IP associations with the EC2 instances by tag. Tag the EC2 instances with an identifier. Create an AWS Systems Manager Automation document to remove the public IP association from the EC2 instances.
D. Create an AWS Lambda function that updates security groups that are associated with the elastic network interface to remove inbound rules with noncorporate CIDR ranges. Turn on VPC Flow Logs, and send the logs to Amazon CloudWatch Logs. Create an Amazon CloudWatch alarm that matches traffic from noncorporate CIDR ranges, and publish a message to an Amazon Simple Notification Service (Amazon SNS) topic with the Lambda function as a target.

正解：A

解説：
CloudWatch provides metrics for EBS volumes that can be used to create alarms. The correct metrics to monitor EBS volume read and write activity are VolumeReadBytes and VolumeWriteBytes.
Identify the Correct Metrics:
VolumeReadBytes: The number of bytes read from the EBS volume.
VolumeWriteBytes: The number of bytes written to the EBS volume.
Reconfigure CloudWatch Alarms:
Navigate to the CloudWatch console.
Select the existing alarms and update the metric to VolumeReadBytes and VolumeWriteBytes for the specific EBS volumes attached to your EC2 instance.
Set the Desired Thresholds:
Configure the threshold for the alarms based on your monitoring requirements (e.g., trigger an alarm if read
/write bytes exceed a certain value).
Verify Alarm Configuration:
Ensure that the alarms are correctly configured and monitoring the appropriate EBS volume metrics.
Test the configuration by generating traffic to the volumes and observing the alarm state changes.
Amazon CloudWatch Metrics for Amazon EBS
Creating Amazon CloudWatch Alarms

質問 # 503
A SysOps administrator creates two VPCs, VPC1 and VPC2, in a company's AWS account The SysOps administrator deploys a Linux Amazon EC2 instance in VPC1 and deploys an Amazon RDS for MySQL DB instance in VPC2. The DB instance is deployed in a private subnet. An application that runs on the EC2 instance needs to connect to the database.
What should the SysOps administrator do to give the EC2 instance the ability to connect to the database?

A. Configure VPC peering between the two VPCs.
B. Enter the DB instance connection string into the VPC1 route table.
C. Add the same IPv4 CIDR range for both VPCs.
D. Connect to the DB instance by using the DB instance's public IP address.

正解：A

質問 # 504
......

われわれは今の競争の激しいIT社会ではくつかIT関連認定証明書が必要だとよくわかります。IT専門知識をテストしているAmazonのSOA-C02認定試験は1つのとても重要な認証試験でございます。しかしこの試験は難しさがあって、合格率がずっと低いです。でもPassTestの最新問題集がこの問題を解決できますよ。SOA-C02認定試験の真実問題と模擬練習問題があって、十分に試験に合格させることができます。

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SOA-C02の難易度は？試験の内容や受験資格、対策法まで紹介

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Amazon SOA-C02日本語対策問題集、SOA-C02日本語学習内容

Amazon AWS Certified SysOps Administrator - Associate (SOA-C02) 認定 SOA-C02 試験問題 (Q499-Q504):

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