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302 Found - awsxp.com
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301 Moved Permanently - https://awsxp.com/
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What does Code 200 mean for the user?
The user receives content without errors, and the page or application functions properly. If Code 200 is accompanied by data, the browser or program processes and displays it to the user.
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Question #361
<span class="font-normal text-gray-500">/ 719</span>
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<p>Which of the following AWS services are serverless? (Choose two.)</p>
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<form class="answer-form mt-6" data-question-id="3714" data-correct-answer="CD" data-explanation="AWS Step Functions (C) is a serverless workflow service that coordinates AWS services without managing servers. Amazon DynamoDB (D) is a serverless NoSQL database with automatic scaling and pay-per-request pricing. <br><br>Other options are not serverless: <br>- A (Elastic Beanstalk) deploys apps on managed EC2 instances, requiring environment configuration. <br>- B (RDS) uses provisioned database instances unless using Aurora Serverless (not specified). <br>- E (EMR) requires managing clusters for big data processing. <br><br>Key Points: <br>1. Serverless = no server management, auto-scaling, pay-as-you-go. <br>2. Step Functions and DynamoDB fit this model. <br>3. Services like RDS/EMR/Elastic Beanstalk involve infrastructure management.">
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<p class="text-sm text-gray-500 mt-2">AWS Step Functions (C) and Amazon DynamoDB (D) are serverless services. Step Functions orchestrates workflows without server management, while DynamoDB is a NoSQL database with automatic scaling. Other options require server management or infrastructure provisioning.</p>
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Question #561
<span class="font-normal text-gray-500">/ 719</span>
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<div class="prose w-full max-w-none mt-4">
<p>Which recommendation can AWS Cost Explorer provide to help reduce costs?</p>
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<form class="answer-form mt-6" data-question-id="3914" data-correct-answer="D" data-explanation="The correct answer is D. AWS Cost Explorer analyzes usage patterns and provides tailored recommendations to optimize costs. One common recommendation is to upgrade to newer generation instance types (e.g., moving from an older EC2 instance type like m3 to a newer generation like m5). Newer generations typically offer improved performance and cost efficiency due to advancements in hardware and pricing models. <br><br>Other options are incorrect because:<br>- A: Migrating storage classes (e.g., S3) is usually recommended by AWS Trusted Advisor, not Cost Explorer.<br>- B: Modifying instance families (e.g., changing from general-purpose to compute-optimized) is a broader architectural decision and not a direct Cost Explorer recommendation.<br>- C: Switching regions is typically a manual decision based on pricing comparisons, not a direct Cost Explorer suggestion.<br><br>Key Takeaway: Cost Explorer focuses on actionable EC2 instance optimizations, such as upgrading to newer generations, to reduce costs.">
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<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option16313"
name="answer"
value="A"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option16313" class="flex items-center text-sm text-gray-700 w-full">
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<span class="font-bold text-indigo-600 mr-4">A</span>
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<span class="block h-5 w-px bg-gray-300 mr-4"></span>
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<span class="flex-1"><p>Migrate data to a different storage class.</p>
</span>
</label>
</div>
<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option16314"
name="answer"
value="B"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option16314" class="flex items-center text-sm text-gray-700 w-full">
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<span class="font-bold text-indigo-600 mr-4">B</span>
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<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Modify the instance family for a workload.</p>
</span>
</label>
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<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option16315"
name="answer"
value="C"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option16315" class="flex items-center text-sm text-gray-700 w-full">
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<span class="font-bold text-indigo-600 mr-4">C</span>
<!-- Divider -->
<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Switch to a different AWS Region.</p>
</span>
</label>
</div>
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<!-- Input -->
<input
type="radio"
id="option16316"
name="answer"
value="D"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option16316" class="flex items-center text-sm text-gray-700 w-full">
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<span class="font-bold text-indigo-600 mr-4">D</span>
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<span class="block h-5 w-px bg-gray-300 mr-4"></span>
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<span class="flex-1"><p>Upgrade to a newer generation instance type.</p>
</span>
</label>
</div>
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<p class="text-sm text-gray-500 mt-2">AWS Cost Explorer can recommend upgrading to newer generation instance types to reduce costs, as they often provide better performance at lower prices.</p>
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<h2 class="text-2xl font-bold">AWS Certified Solutions Architect - Associate</h2>
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Question #171
<span class="font-normal text-gray-500">/ 1019</span>
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<div class="prose w-full max-w-none mt-4">
<p>A company offers an API that processes image resizing requests for e-commerce platforms. The service experiences a significant surge in demand during holiday sales, leading to performance degradation. A solutions architect must implement a solution that ensures scalability and elasticity during peak periods.<br><br>What should the solutions architect recommend to address this issue?</p>
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<form class="answer-form mt-6" data-question-id="4243" data-correct-answer="B" data-explanation="Answer B is correct because:<br>- **Serverless Scalability**: AWS Lambda automatically scales with the number of requests, eliminating the need to provision or manage servers.<br>- **Asynchronous Processing**: Decouples the API request from the resizing task, preventing bottlenecks during peak loads.<br>- **Cost-Efficiency**: Lambda charges per execution, reducing costs during low traffic while handling spikes effectively.<br><br>Other options are incorrect because:<br>- **A/C/D**: Rely on EC2 instances, which require manual scaling (even with auto-scaling, scaling delays can occur) and synchronous processing, leading to potential performance degradation. Option D uses a fixed number of instances, which cannot handle surges.<br><br>**Key Points**: Use serverless (Lambda) for unpredictable workloads; asynchronous processing improves elasticity; API Gateway integrates seamlessly with Lambda for scalable APIs.">
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<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option17661"
name="answer"
value="A"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option17661" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">A</span>
<!-- Divider -->
<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Deploy the API on an Amazon EC2 instance configured with auto-scaling. The EC2 instance handles image resizing synchronously for each API request.</p>
</span>
</label>
</div>
<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option17662"
name="answer"
value="B"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option17662" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">B</span>
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<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Implement a REST API using Amazon API Gateway to receive image URLs. API Gateway triggers an AWS Lambda function to process the resizing asynchronously.</p>
</span>
</label>
</div>
<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option17663"
name="answer"
value="C"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option17663" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">C</span>
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<span class="block h-5 w-px bg-gray-300 mr-4"></span>
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<span class="flex-1"><p>Use Amazon API Gateway to forward image URLs to an API hosted on an Amazon EC2 instance. The EC2 instance manages the resizing computations directly.</p>
</span>
</label>
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<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option17664"
name="answer"
value="D"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option17664" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">D</span>
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<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Set up an Application Load Balancer distributing traffic across a fixed number of Amazon EC2 instances. The EC2 instances execute the image resizing tasks.</p>
</span>
</label>
</div>
</div>
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<p class="text-sm text-gray-500 mt-2">The correct answer is B. Using API Gateway with Lambda allows asynchronous, serverless image processing, ensuring automatic scalability during traffic surges without managing servers.</p>
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Question #365
<span class="font-normal text-gray-500">/ 1019</span>
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<p>A company uses Amazon RDS to host a production database. A developer accidentally deleted several critical tables and now the operations team needs to restore the database to its exact state 10 minutes before the deletion occurred, within the last 35 days. Which feature must the solutions architect enable to fulfill this requirement?</p>
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<form class="answer-form mt-6" data-question-id="4437" data-correct-answer="C" data-explanation="The correct answer is **C. Automated backups**.<br><br>**Why Automated Backups?**<br>- Amazon RDS automated backups enable **point-in-time recovery (PITR)** by default, allowing restoration to any second within the retention period (up to 35 days).<br>- Automated backups include daily snapshots and transaction logs, enabling precise recovery to a specific moment (e.g., 10 minutes before the deletion occurred).<br><br>**Why Other Options Are Incorrect:**<br>- **A. Read replicas**: These are used for scaling read operations, not backup/restore. Promoting a read replica creates a standalone instance but does not support restoring to a specific point in time.<br>- **B. Manual snapshots**: These require manual creation and are not automated. If no snapshot was taken before the deletion, this option cannot fulfill the requirement.<br>- **D. Multi-AZ deployments**: These provide high availability by maintaining a standby instance in another Availability Zone but do not directly support point-in-time recovery.<br><br>**Key Points to Remember:**<br>- Automated backups with PITR are essential for restoring databases to precise states within the retention period.<br>- Manual snapshots are user-initiated and ideal for long-term retention beyond 35 days.<br>- Read replicas and Multi-AZ are for performance/availability, not backup/restore.">
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<!-- Input -->
<input
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id="option18463"
name="answer"
value="A"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option18463" class="flex items-center text-sm text-gray-700 w-full">
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<span class="font-bold text-indigo-600 mr-4">A</span>
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<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Read replicas</p>
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</label>
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<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option18464"
name="answer"
value="B"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option18464" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">B</span>
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<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Manual snapshots</p>
</span>
</label>
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<!-- Input -->
<input
type="radio"
id="option18465"
name="answer"
value="C"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option18465" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">C</span>
<!-- Divider -->
<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Automated backups</p>
</span>
</label>
</div>
<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option18466"
name="answer"
value="D"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option18466" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">D</span>
<!-- Divider -->
<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Multi-AZ deployments</p>
</span>
</label>
</div>
</div>
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<p class="text-sm text-gray-500 mt-2">Automated backups enable point-in-time recovery (PITR) within the retention period (up to 35 days), allowing restoration to a specific moment (e.g., 10 minutes before deletion). Manual snapshots require proactive creation, read replicas are for read scaling, and Multi-AZ ensures high availability but does not directly support PITR.</p>
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<h2 class="text-2xl font-bold">AWS Certified Solutions Architect - Professional</h2>
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Question #152
<span class="font-normal text-gray-500">/ 529</span>
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<div class="prose w-full max-w-none mt-4">
<p>A company operates a video streaming platform on AWS using Amazon EKS with EC2 instances and Amazon Aurora PostgreSQL. They are migrating some services to AWS Fargate. The platform encounters sudden traffic surges during scheduled live events that occur sporadically throughout the year.<br><br>Which solution will provide the MOST cost-effective setup for the platform?</p>
</div>
<form class="answer-form mt-6" data-question-id="2976" data-correct-answer="B" data-explanation="Option B is correct because:<br>1. **Compute Savings Plans** cover baseline usage for both EKS (EC2) and Fargate, offering flexibility and cost savings across compute services.<br>2. **Reserved On-Demand Capacity** ensures guaranteed EC2 capacity during scheduled events, avoiding Spot Instance interruptions while maintaining cost predictability.<br>3. **1-year No Upfront Reserved Instances** for Aurora's baseline reduces database costs without long-term commitments.<br>4. **Auto-scaling read replicas** handle peak database loads efficiently without over-provisioning.<br><br>Other options are less optimal:<br>- **A/C** use long-term Reserved Instances for Aurora's peak load, which is costly for sporadic usage.<br>- **C** relies on manual vertical scaling, which is error-prone and not automated.<br>- **D** uses Aurora Serverless v2, which is better for unpredictable scaling, but scheduled events allow cheaper scaling via read replicas.<br><br>Key Points:<br>- Use Savings Plans for baseline workloads across services.<br>- Reserve On-Demand Capacity for predictable surges.<br>- Auto-scale read replicas for cost-effective database scaling.">
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<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option12379"
name="answer"
value="A"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option12379" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">A</span>
<!-- Divider -->
<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Purchase EC2 Instance Savings Plans for the EKS cluster's baseline workload. Use Spot Instances to handle traffic surges. Buy 3-year All Upfront Reserved Instances for the Aurora database to accommodate predicted peak load. Temporarily add read replicas during events.</p>
</span>
</label>
</div>
<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option12380"
name="answer"
value="B"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option12380" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">B</span>
<!-- Divider -->
<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Purchase Compute Savings Plans to cover the baseline usage of EKS and Fargate. Reserve On-Demand Capacity for EKS during scheduled live events to manage surges. Purchase 1-year No Upfront Reserved Instances for Aurora's baseline. Automatically scale read replicas during peak periods.</p>
</span>
</label>
</div>
<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option12381"
name="answer"
value="C"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option12381" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">C</span>
<!-- Divider -->
<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Buy Reserved Instances for the EKS EC2 baseline capacity. Scale using Spot Instances during peaks. Purchase 3-year Partial Upfront Reserved Instances for Aurora's peak load. Manually scale the database instance vertically during events.</p>
</span>
</label>
</div>
<div class="flex items-center bg-gray-50 p-4 rounded-lg shadow-sm border border-gray-200 hover:bg-gray-100">
<!-- Input -->
<input
type="radio"
id="option12382"
name="answer"
value="D"
class="mr-3 h-5 w-5 border-gray-300 rounded focus:ring-indigo-500">
<!-- Label and Value -->
<label for="option12382" class="flex items-center text-sm text-gray-700 w-full">
<!-- Bold Label (A, B, C...) -->
<span class="font-bold text-indigo-600 mr-4">D</span>
<!-- Divider -->
<span class="block h-5 w-px bg-gray-300 mr-4"></span>
<!-- Value -->
<span class="flex-1"><p>Utilize Compute Savings Plans for EKS and Fargate's baseline. Scale EKS with Spot Instances for surges. Purchase 1-year All Upfront Reserved Instances for Aurora's baseline. Configure Aurora Serverless v2 to automatically adjust capacity during peaks.</p>
</span>
</label>
</div>
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<p class="text-sm text-gray-500 mt-2">Answer B combines Compute Savings Plans for baseline usage, reserves On-Demand Capacity for predictable EKS surges, and uses Aurora Reserved Instances with auto-scaling read replicas. This setup optimizes costs by leveraging flexible pricing models and automated scaling for sporadic traffic spikes.</p>
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Question #480
<span class="font-normal text-gray-500">/ 529</span>
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<p>A solutions architect is developing an AWS CloudFormation template to replicate a manually configured non-production environment in a child account. The template is designed to be disposable, allowing it to be torn down and recreated as needed. The environment includes an AWS Lambda function that assumes a role in a parent account to access resources. The Lambda function's execution role is defined in the CloudFormation template with the same name as the original manually created role. After deploying the CloudFormation stack, the Lambda function fails to assume the role in the parent account due to permission issues. What should the solutions architect do to resolve this problem?</p>
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<form class="answer-form mt-6" data-question-id="3304" data-correct-answer="A" data-explanation="Answer A is correct because when recreating IAM roles via CloudFormation, the ARN might differ from the manually created role (e.g., due to path changes). The parent account's role trust policy must explicitly allow the new ARN for sts:AssumeRole. <br><br>Option B is incorrect because allowing the child account's root principal is overly permissive and unnecessary if the ARN is correctly specified. Options C and D are incorrect because CAPABILITY_NAMED_IAM is only required during stack creation if IAM resources are named, which doesn't resolve the cross-account trust issue. The root cause is the parent role's trust policy referencing an outdated ARN, not CloudFormation capabilities.<br><br>Key Points:<br>- IAM role ARNs depend on account ID, role name, and path.<br>- Trust policies must explicitly allow the correct ARN of the assuming role.<br>- CloudFormation capabilities relate to resource creation, not cross-account permissions.">
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<span class="flex-1"><p>In the parent account, modify the trust policy of the role assumed by the Lambda function. Update the existing statement allowing the sts:AssumeRole action to reference the correct role ARN from the CloudFormation-created role. Save the trust policy.</p>
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<input
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value="B"
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<span class="flex-1"><p>In the parent account, edit the trust policy of the role assumed by the Lambda function. Add a new statement allowing the sts:AssumeRole action for the child account's root principal. Save the trust policy.</p>
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<!-- Input -->
<input
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id="option13785"
name="answer"
value="C"
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<span class="font-bold text-indigo-600 mr-4">C</span>
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<span class="flex-1"><p>Redeploy the CloudFormation stack with the CAPABILITY<em>NAMED</em>IAM capability specified to ensure IAM resource names are preserved.</p>
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<span class="font-bold text-indigo-600 mr-4">D</span>
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<span class="flex-1"><p>Redeploy the CloudFormation stack with both CAPABILITY<em>IAM and CAPABILITY</em>NAMED_IAM capabilities to grant permissions for IAM resource creation.</p>
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<p class="text-sm text-gray-500 mt-2">The parent account's role trust policy must reference the correct ARN of the CloudFormation-created role in the child account. Even with the same role name, the ARN might differ due to path or recreation, requiring an update to the trust policy.</p>
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Question #464
<span class="font-normal text-gray-500">/ 557</span>
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<p>A developer is using AWS CloudFormation to deploy an Amazon RDS instance. The developer needs to set the RDS instance's allocated storage based on the environment parameter of the template. The template contains mappings of EnvironmentConfig for each environment's storage size.<br><br>The environment parameter and EnvironmentConfig mappings are as follows:<br><br>Environment parameter:<br><br><code>yaml<br>Parameters:<br> Environment:<br> Type: String<br> Default: dev<br> AllowedValues:<br> - dev<br> - test<br> - prod<br> Description: The name of the deployment environment.<br></code><br><br>EnvironmentConfig mappings:<br><br><code>yaml<br>Mappings:<br> EnvironmentConfig:<br> dev:<br> Storage: 100<br> test:<br> Storage: 200<br> prod:<br> Storage: 300<br></code><br><br>Which statement will meet these requirements?</p>
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<form class="answer-form mt-6" data-question-id="5555" data-correct-answer="B" data-explanation="The correct answer is B: AllocatedStorage: !FindInMap [EnvironmentConfig, !Ref Environment, Storage].<br><br>**Why B is correct:**<br>- The `!FindInMap` intrinsic function retrieves values from a CloudFormation mapping. Its syntax is `!FindInMap [MapName, TopLevelKey, SecondLevelKey]`.<br>- Here, `EnvironmentConfig` is the map name, `!Ref Environment` resolves to the environment parameter value (e.g., 'dev'), and `Storage` is the second-level key.<br>- This matches the structure of the provided mappings, where each environment (dev/test/prod) has a `Storage` value.<br><br>**Why other options are incorrect:**<br>- **A:** `!GetAtt` retrieves attributes of AWS resources (e.g., EC2 instance ID), not mapping values.<br>- **C:** `!Select` returns an item from a list by index (e.g., `!Select [0, ["a", "b"]]`), which is unrelated to mappings.<br>- **D:** `!ForEach` is not a valid CloudFormation intrinsic function.<br><br>**Key Points:**<br>- Use `!FindInMap` to access values in CloudFormation mappings.<br>- Mappings are static configurations defined in the template, not dynamic resources.<br>- Parameters and mappings are often combined to customize templates for different environments.">
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<span class="flex-1"><p>AllocatedStorage: !GetAtt [EnvironmentConfig, !Ref Environment, Storage]</p>
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value="B"
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<span class="font-bold text-indigo-600 mr-4">B</span>
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<span class="flex-1"><p>AllocatedStorage: !FindInMap [EnvironmentConfig, !Ref Environment, Storage]</p>
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<input
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value="C"
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<span class="font-bold text-indigo-600 mr-4">C</span>
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<span class="flex-1"><p>AllocatedStorage: !Select [EnvironmentConfig, !Ref Environment, Storage]</p>
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<span class="font-bold text-indigo-600 mr-4">D</span>
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<span class="flex-1"><p>AllocatedStorage: !ForEach [EnvironmentConfig, !Ref Environment, Storage]</p>
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<p class="text-sm text-gray-500 mt-2">The correct answer is B because the !FindInMap intrinsic function is used to retrieve values from a CloudFormation mapping. The syntax matches the structure of the provided EnvironmentConfig mappings.</p>
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Question #34
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<p>A developer is designing an AWS CloudFormation template for a serverless application that includes Amazon API Gateway, AWS Lambda, and Amazon DynamoDB. Which AWS service or tool allows the developer to define these serverless resources using a simplified YAML syntax?</p>
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<form class="answer-form mt-6" data-question-id="5125" data-correct-answer="C" data-explanation="The correct answer is C. AWS SAM extends AWS CloudFormation to provide a simplified syntax specifically for serverless applications. It introduces resource types like `AWS::Serverless::Function` (for Lambda) and `AWS::Serverless::Api` (for API Gateway), reducing the verbosity of standard CloudFormation templates.<br><br>Why other options are incorrect:<br>- **A**: CloudFormation intrinsic functions (e.g., `Fn::GetAtt`) are used for referencing resources within templates but do not simplify serverless resource definitions.<br>- **B**: AWS Elastic Beanstalk is a PaaS for deploying applications (e.g., EC2-based), not optimized for serverless architectures.<br>- **D**: AWS CDK uses programming languages (e.g., Python, TypeScript) to define infrastructure, not YAML.<br><br>Key Point: AWS SAM is purpose-built for serverless applications and uses a streamlined YAML syntax, aligning with the question's requirements.">
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<span class="flex-1"><p>CloudFormation serverless intrinsic functions</p>
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<span class="flex-1"><p>AWS Elastic Beanstalk</p>
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<span class="flex-1"><p>AWS Serverless Application Model (AWS SAM)</p>
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<span class="flex-1"><p>AWS Cloud Development Kit (AWS CDK)</p>
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<p class="text-sm text-gray-500 mt-2">AWS Serverless Application Model (AWS SAM) provides a simplified YAML syntax to define serverless resources like API Gateway, Lambda, and DynamoDB, making it the correct choice.</p>
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