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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Design Cost-Optimized Architectures | 20% | - Design cost-optimized compute solutions
|
| Topic 2: Design Resilient Architectures | 26% | - Design highly available and/or fault-tolerant architectures
|
| Topic 3: Design High-Performing Architectures | 24% | - Determine high-performing database solutions
|
| Topic 4: Design Secure Architectures | 30% | - Design secure access to AWS resources
|
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問題 #461
[Design Secure Architectures]
A company has deployed its newest product on AWS. The product runs in an Auto Scaling group behind a Network Load Balancer. The company stores the product's objects in an Amazon S3 bucket.
The company recently experienced malicious attacks against its systems. The company needs a solution that continuously monitors for malicious activity in the AWS account, workloads, andaccess patterns to the S3 bucket. The solution must also report suspicious activity and display the information on a dashboard.
Which solution will meet these requirements?
答案：A
解題說明：
Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior across the AWS account and workloads. GuardDuty analyzes data sources such as AWS CloudTrail event logs, Amazon VPC Flow Logs, and DNS logs to identify potential threats such as compromised instances, reconnaissance, port scanning, and data exfiltration. GuardDuty can report its findings to AWS Security Hub, which is a service that provides a comprehensive view of the security posture of the AWS account and workloads. Security Hub aggregates, organizes, and prioritizes security alerts from multiple AWS services and partner solutions, and displays them on a dashboard. This solution will meet the requirements, as it enables continuous monitoring, reporting, and visualization of malicious activity in the AWS account, workloads, and access patterns to the S3 bucket.
Reference:
1 provides an overview of Amazon GuardDuty and its benefits.
2 explains how GuardDuty generates and reports findings based on threat detection.
3 provides an overview of AWS Security Hub and its benefits.
4 describes how Security Hub collects and displays findings from multiple sources on a dashboard
問題 #462
A marketing team wants to build a campaign for an upcoming multi-sport event. The team has news reports from the past five years in PDF format. The team needs a solution to extract insights about the content and the sentiment of the news reports. The solution must use Amazon Textract to process the news reports. Which solution will meet these requirements with the LEAST operational overhead?
答案：B
解題說明：
AmazonTextractcan extract text from the PDFs, andAmazon Comprehendis the most suitable service to analyze the extracted text for sentiment and insights. Comprehend offers a fully managed, low-operational overhead solution for analyzing text data. The results can then be stored in anAmazon S3bucket, ensuring scalability and easy access.
Option A: Athena is for querying structured data and is not suitable for sentiment analysis.
Option B: SageMaker adds complexity and is not necessary when Comprehend can handle sentiment analysis natively.
Option D: QuickSight is used for visualization and analytics, but it does not provide sentiment analysis.
問題 #463
A company runs a latency-sensitive gaming service in the AWS Cloud. The gaming service runs on a fleet of Amazon EC2 instances behind an Application Load Balancer (ALB). An Amazon DynamoDB table stores the gaming data. All the infrastructure is in a single AWS Region. The main user base is in that same Region.
A solutions architect needs to update the architecture to support a global expansion of the gaming service. The gaming service must operate with the least possible latency.
Which solution will meet these requirements?
答案：B
解題說明：
For latency-sensitive, globally distributed applications such as online gaming, minimizing network latency between users and application endpoints is critical. AWS Global Accelerator is designed specifically for this purpose. It uses the AWS global network and Anycast IP addresses to route user traffic to the closest healthy endpoint, reducing latency and improving performance for users worldwide.
Option C is the best solution because Global Accelerator directs traffic over the AWS backbone network instead of the public internet, which significantly reduces jitter and latency. It also provides built-in health checks and automatic failover, improving availability as the service expands globally. Importantly, Global Accelerator works seamlessly with existing Application Load Balancers, allowing the company to enhance performance without redesigning the application stack.
Option A (CloudFront) is optimized for caching static and cacheable content and is not ideal for real-time, stateful gaming traffic. Option B adds unnecessary API abstraction and additional latency. Option D introduces regional duplication and DNS-based routing, which is slower to react to network conditions and does not provide the same low-latency routing as Global Accelerator.
Therefore, C meets the requirement for global expansion with the least possible latency while maintaining a simple and highly performant architecture.
問題 #464
A company needs to optimize its Amazon S3 storage costs for an application that generates many files that cannot be recreated Each file is approximately 5 MB and is stored in Amazon S3 Standard storage. The company must store the files for 4 years before the files can be deleted The files must be immediately accessible The files are frequently accessed in the first 30 days of object creation, but they are rarely accessed after the first 30 days. Which solution will meet these requirements MOST cost-effectively?
答案：D
解題說明：
Amazon S3 Standard-IA: This storage class is designed for data that is accessed less frequently but requires rapid access when needed. It offers lower storage costs compared to S3 Standard while still providing high availability and durability.
Access Patterns: Since the files are frequently accessed in the first 30 days and rarely accessed afterward, transitioning them to S3 Standard-IA after 30 days aligns with their access patterns and reduces storage costs significantly.
Lifecycle Policy: Implementing a lifecycle policy to transition the files to S3 Standard-IA ensures automatic management of the data lifecycle, moving files to a lower-cost storage class without manual intervention. Deleting the files after 4 years further optimizes costs by removing data that is no longer needed.
問題 #465
A company runs a multi-tier application on premises by using virtual machines (VMs). The application tiers communicate asynchronously through third-party middleware that guarantees exactly-once delivery. The company is planning to migrate the application to AWS and needs to replace the middleware solution. The solution must provide exactly-once delivery for messages from the application.
Which combination of actions will meet these requirements with the LEAST infrastructure management?
(Select TWO.)
答案：A,D
解題說明：
The correct answers areA and D. The requiement is to replace third-party middleware with an AWS-native solution that supportsasynchronous communication,exactly-once delivery, and theleast infrastructure management.Amazon SQS FIFO queuesare the best messaging component because FIFO queues are designed for workloads that requireordered processingandexactly-once message deliverysemantics. That makes optionDthe correct messaging choice.
For the compute layer,AWS Lambdaprovides the least infrastructure management because it is a fully managed serverless compute service. Lambda removes the need to manage virtual machines, operating systems, or cluster infrastructure. It integrates naturally with queue-based asynchronous architectures and can be invoked to process messages from SQS while scaling automatically based on queue depth and workload demand. That makes optionAthe best choice for minimizing operational burden.
Option B is incorrect because EC2 instances would require the company to manage instance provisioning, patching, scaling, and availability. Option C is incorrect becauseAmazon SNSis a pub/sub messaging service and does not provide exactly-once delivery guarantees likeSQS FIFO. Option E is incorrect becauseAmazon EKSintroduces Kubernetes management overhead and is not the lowest-management compute option.
AWS best practices recommend using managed messaging and serverless compute to reduce undifferentiated operational work. For a migration that requires asynchronous processing with exactly-once delivery and minimal infrastructure management, the most appropriate architecture isAWS Lambda functionswithAmazon SQS FIFO queues.
問題 #466
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