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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Design Resilient Architectures | 26% | - Design scalable and loosely coupled architectures
|
| Topic 2: Design High-Performing Architectures | 24% | - Design high-performing and elastic compute solutions
|
| Topic 3: Design Secure Architectures | 30% | - Design secure access to AWS resources
|
| Topic 4: Design Cost-Optimized Architectures | 20% | - Design cost-optimized compute solutions
|
Amazon人が職場や学校で高い生産性を備えている場合、最終的にSAA-C03試験で成功することは避けられません。あなたもそう。 SAA-C03の実際の試験を購入するお客様との永続的かつ持続可能な協力関係があります。学習プロセス中の知識のギャップを埋めるためにSAA-C03学習教材を改修および更新し、SAA-C03試験の自信と成功率を高めるように最善を尽くします。
質問 # 411
A company has a single AWS account that contains resources belonging to several teams. The company needs to identify the costs associated with each team. The company wants to use a tag named CostCenter to identify resources that belong to each team. Which solution will meet this requirement?
正解：A、C
解説：
To track costs associated with different teams within a single AWS account, the company should implement user-defined cost allocation tags.
Tagging Resources with CostCenter: Assign the CostCenter tag to all resources, specifying the appropriate value for each team. This practice enables the organization to categorize and track AWS costs effectively.
Activating the CostCenter Tag: After tagging resources, activate the CostCenter tag in the AWS Billing and Cost Management console. Activation is necessary for the tags to appear in cost allocation reports and AWS Cost Explorer.
By following these steps, the company can generate detailed billing reports that break down costs by team, facilitating better cost management and accountability.
質問 # 412
A company needs to design a hybrid network architecture The company's workloads are currently stored in the AWS Cloud and in on-premises data centers The workloads require single-digit latencies to communicate The company uses an AWS Transit Gateway transit gateway to connect multiple VPCs. Which combination of steps will meet these requirements MOST cost- effectively? (Select TWO.)
正解：A、C
解説：
AWS Direct Connect: Provides a dedicated network connection from your on-premises data center to AWS, ensuring low latency and consistent network performance.
Direct Connect Gateway Association:
Direct Connect Gateway: Acts as a global network transit hub to connect VPCs across different AWS regions.
Association with Transit Gateway: Enables communication between on-premises data centers and multiple VPCs connected to the transit gateway.
Transit Virtual Interface (VIF):
Create Transit VIF: To connect Direct Connect with a transit gateway.
Setup Steps:
Establish a Direct Connect connection.
Create a transit VIF to the Direct Connect gateway.
Associate the Direct Connect gateway with the transit gateway attached to the VPCs.
Cost Efficiency: This combination avoids the recurring costs and potential performance variability of VPN connections, providing a robust, low-latency hybrid network solution.
質問 # 413
A company recently migrated a monolithic application to an Amazon EC2 instance and Amazon RDS. The application has tightly coupled modules. The existing design of the application gives the application the ability to run on only a single EC2 instance. The company has noticed high CPU utilization on the EC2 instance during peak usage times. The high CPU utilization corresponds to degraded performance on Amazon RDS for read requests. The company wants to reduce the high CPU utilization and improve read request performance. Which solution will meet these requirements?
正解：B
解説：
To address the high CPU utilization on the EC2 instance and the degraded performance of Amazon RDS for read requests, the solution involves two key actions: resizing the EC2 instance and leveraging Amazon RDS read replicas.
Resizing the EC2 Instance: The first step is to resize the EC2 instance to a type with more CPU capacity to handle the higher computational demands during peak usage times. This helps to alleviate the immediate pressure on the CPU.
Auto Scaling Group with a Size of 1: Although the application can only run on a single EC2 instance due to its monolithic nature, creating an Auto Scaling group with a minimum and maximum size of 1 ensures that the instance is automatically restarted or replaced in case of failure, maintaining high availability.
RDS Read Replica: Configuring an RDS read replica allows the application to offload read requests to a separate instance, thus reducing the load on the primary RDS instance. This improves the performance of read operations, which were previously bottlenecked due to the high CPU usage on the EC2 instance.
Why Not Other Options?
Option B: Redirecting all traffic to the RDS read replica is not recommended because replicas are meant for read traffic only, not for write operations. This could lead to data consistency issues.
Option C: Increasing the RDS instance type capacity helps, but it doesn't address the high CPU usage on the EC2 instance, nor does it provide a solution for scaling reads.
Option D: While resizing both the EC2 and RDS instances increases their capacities, it doesn't address the specific need to offload read traffic from the primary RDS instance.
質問 # 414
A large financial firm needs to set up a Linux bastion host to allow access to the Amazon EC2 instances running in their VPC.
For security purposes, only the clients connecting from the corporate external public IP address 175.45.116.100 should have SSH access to the host.
Which is the best option that can meet the customer's requirement?
正解：C
解説：
A bastion host is a special purpose computer on a network specifically designed and configured to withstand attacks.
The computer generally hosts a single application, for example a proxy server, and all other services are removed or limited to reduce the threat to the computer.
When setting up a bastion host in AWS, you should only allow the individual IP of the client and not the entire network. Therefore, in the Source, the proper CIDR notation should be used. The /32 denotes one IP address and the /0 refers to the entire network.
The option that says: Security Group Inbound Rule: Protocol - UDP, Port Range - 22, Source 175.45.116.100/32 is incorrect since the SSH protocol uses TCP and port 22, and not UDP.
The option that says: Network ACL Inbound Rule: Protocol - UDP, Port Range - 22, Source 175.45.116.100/32 is incorrect since the SSH protocol uses TCP and port 22, and not UDP.
Aside from that, network ACLs act as a firewall for your whole VPC subnet while security groups operate on an instance level. Since you are securing an EC2 instance, you should be using security groups.
The option that says: Network ACL Inbound Rule: Protocol - TCP, Port Range-22, Source 175.45.116.100/0 is incorrect as it allowed the entire network instead of a single IP to gain access to the host.
Explanation:
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html Check out this Amazon EC2 Cheat Sheet:
https://tutorialsdojo.com/amazon-elastic-compute-cloud-amazon-ec2/
質問 # 415
A company has 10 TB of infrequently accessed financial data files that would need to be stored in AWS. These data would be accessed infrequently during specific weeks when they are retrieved for auditing purposes. The retrieval time is not strict as long as it does not exceed 24 hours.
Which of the following would be a secure, durable, and cost-effective solution for this scenario?
正解：C
解説：
Glacier is a cost-effective archival solution for large amounts of data. Bulk retrievals are S3 Glacier's lowest-cost retrieval option, enabling you to retrieve large amounts, even petabytes, of data inexpensively in a day. Bulk retrievals typically complete within 5 - 12 hours. You can specify an absolute or relative time period (including 0 days) after which the specified Amazon S3 objects should be transitioned to Amazon Glacier.
Hence, the correct answer is the option that says: Upload the data to S3 and set a lifecycle policy to transition data to Glacier after 0 days.
Glacier has a management console that you can use to create and delete vaults. However, you cannot directly upload archives to Glacier by using the management console. To upload data such as photos, videos, and other documents, you must either use the AWS CLI or write code to make requests by using either the REST API directly or by using the AWS SDKs.
Take note that uploading data to the S3 Console and setting its storage class of "Glacier" is a different story as the proper way to upload data to Glacier is still via its API or CLI. In this way, you can set up your vaults and configure your retrieval options. If you uploaded your data using the S3 console then it will be managed via S3 even though it is internally using a Glacier storage class.
Uploading the data to S3 then using a lifecycle policy to transfer data to S3-IA is incorrect because using Glacier would be a more cost-effective solution than using S3-IA. Since the required retrieval period should not exceed more than a day, Glacier would be the best choice.
Uploading the data to Amazon FSx for Windows File Server using the Server Message Block (SMB) protocol is incorrect because this option costs more than Amazon Glacier, which is more suitable for storing infrequently accessed data. Amazon FSx for Windows File Server provides fully managed, highly reliable, and scalable file storage that is accessible over the industry-standard Server Message Block (SMB) protocol.
Uploading the data to S3 then using a lifecycle policy to transfer data to S3 One Zone-IA is incorrect because with S3 One Zone-IA, the data will only be stored in a single availability zone and thus, this storage solution is not durable. It also costs more compared to Glacier. References:
https://aws.amazon.com/glacier/faqs/
https://docs.aws.amazon.com/AmazonS3/latest/dev/object-lifecycle-mgmt.html
https://docs.aws.amazon.com/amazonglacier/latest/dev/uploading-an-archive.html Amazon S3 and S3 Glacier Overview:
https://www.youtube.com/watch?v=1ymyeN2tki4
Check out this Amazon S3 Glacier Cheat Sheet:
https://tutorialsdojo.com/amazon-glacier/
質問 # 416
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SAA-C03学習ガイドは、ユーザーの要求に十分に応えるため、メモリを分離するための少しの知識になりますが、それらを一緒に追加すると、時間を活用できる日が非常に多くあります。 SAA-C03試験準備により、ユーザーはいつでもどこでもがれきの時間を使って勉強し、勉強と生活をより合理的に調整することができます。私たちのSAA-C03シミュレーションマテリアルを選択するのは良い選択です。私たちのステップに従ってください。自分を信じて、あなたは完璧にそれをすることができます！
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