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Amazon AWS-Solutions-Associate Exam Syllabus Topics:

Section	Weight	Objectives
Design Cost-Optimized Architectures	20%	- Cost monitoring and governance 1. Budget alerts and tagging strategies 2. AWS Cost Explorer - Cost optimization strategies 1. Reserved and Spot Instances 2. Right-sizing resources
Design High-Performing Architectures	24%	- Storage and database performance 1. S3 performance optimization 2. RDS and DynamoDB scaling patterns - Compute optimization 1. Serverless architectures (Lambda) 2. EC2 instance selection
Design Resilient Architectures	26%	- Disaster recovery 1. Backup and restore strategies 2. RTO and RPO planning - Highly available architectures 1. Auto Scaling and Load Balancing 2. Multi-AZ deployments
Design Secure Architectures	30%	- Data protection and encryption 1. Encryption in transit and at rest 2. KMS encryption services - Identity and Access Management (IAM) 1. IAM users, roles, and policies 2. Least privilege access control 3. Cross-account access

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Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Sample Questions (Q387-Q392):

NEW QUESTION # 387
A medical research lab produces data that is related to a new study. The lab wants to make the data available with minimum latency to clinics across the country for their on-premises file-based applications. The data files are stored in an Amazon S3 bucket that has read-only permissions for each clinic.
What should a solutions architect recommend to meet these requirements?

A. Migrate the files to each clinic's on-premises applications by using AWS DataSync for processing
B. Attach an Amazon Elastic File System (Amazon EFS) file system to each clinic's on-premises servers
C. Deploy an AWS Storage Gateway volume gateway as a virtual machine (VM) on premises at each clinic.
D. Deploy an AWS Storage Gateway file gateway as a virtual machine (VM) on premises at each clinic.

Answer: D

NEW QUESTION # 388
A global ecommerce company is designing a three-tier application on AWS. The application includes a web tier that serves static content, an application tier that handles business logic, and a database tier that stores product information and user data. The application interacts with a relational database.
The company needs a highly available application architecture to serve global users with low latency, with the least operational overhead.
Which solution will meet these requirements?

A. Deploy Amazon EC2 instances in an Auto Scaling group for the application tier and web tier in a single AWS Region. Use an Application Load Balancer to distribute web traffic. Use an Amazon RDS database and Multi-AZ deployments for the database tier.
B. Set up an Amazon CloudFront distribution that uses an Amazon S3 bucket as the origin. Use Amazon Elastic Container Service (Amazon ECS) containers on AWS Fargate to deploy the application tier to each AWS Region where the company operates. Use an Amazon Aurora global database for the database tier.
C. Use an Amazon S3 bucket to store the static web content. Use Amazon EC2 Auto Scaling and EC2 Spot Instances for the application tier. Use Amazon RDS for MySQL with read replicas for the database tier. Use AWS Database Migration Service (AWS DMS) to replicate data to secondary AWS Regions.
D. Use an Amazon S3 bucket to store static web content. Use AWS Lambda functions to handle serverless backend logic in the application tier. Use Amazon API Gateway to invoke the Lambda functions for web requests. Use an Amazon DynamoDB database for the database tier. Deploy the DynamoDB database across multiple AWS Regions.

Answer: B

Explanation:
AWS guidance for global, highly available, low-latency applications using a relational database recommends:
* Amazon CloudFront with Amazon S3 for static content to cache data at edge locations globally and minimize latency for static assets.
* A regional application tier deployed close to users using managed container services such as Amazon ECS on AWS Fargate, which removes the need to manage servers and scales automatically, reducing operational overhead.
* A relational database tier using Amazon Aurora global database, which is purpose-built for globally distributed applications. Aurora global database provides a primary cluster in one Region with low- latency read replicas in secondary Regions and fast cross-Region replication, enabling low-latency reads and high availability for global users.
Option A uses only a single Region, which does not meet the "global users with low latency" requirement.
Option C uses RDS and DMS-based replication, which requires more management and does not provide Aurora's integrated global database features.
Option D replaces the relational database with DynamoDB, which violates the requirement that the application interacts with a relational database.

NEW QUESTION # 389
A company uses Amazon EC2 instances and stores data on Amazon Elastic Block Store (Amazon EBS) volumes. The company must ensure that all data is encrypted at rest by using AWS Key Management Service (AWS KMS). The company must be able to control rotation of the encryption keys.
Which solution will meet these requirements with the LEAST operational overhead?

A. Use an AWS managed key to encrypt the EBS volumes. Use the key to configure automatic key rotation.
B. Create a customer managed key Use the key to encrypt the EBS volumes.
C. Create an external KMS key with imported key material. Use the key to encrypt the EBS volumes.
D. Use an AWS owned key to encrypt the EBS volumes.

Answer: B

Explanation:
To meet the requirement of controlling key rotation with minimal operational overhead, creating acustomer managed key(CMK) in AWS KMS is the optimal solution. With CMKs, you can define custom key rotation policies, ensuring that you retain control over the key lifecycle, including enabling automatic key rotation every year.
Key AWS features:
Custom Key Management: A customer managed key allows you to control the key policies, lifecycle, and enable key rotation for compliance.
Least Operational Overhead: Using a customer managed key simplifies encryption management while offering more flexibility than AWS managed or owned keys.
AWS Documentation: The AWS Well-Architected Framework recommends customer managed keys for environments where key control and flexibility are required.

NEW QUESTION # 390
A company's new web application running on Amazon EC2 across multiple Availability Zones (AZs) will be heavily accessed during regular business hours After business hours, usage will be minimal. What fleet-scaling approach should be used to size the EC2 fleet to handle the traffic demands?

A. Scheduled scaling
B. Programmatic termination of all instances in one AZ during off-peak hours
C. Manual scaling across all AZs
D. Provisioning for peak traffic

Answer: A

NEW QUESTION # 391
A company hosts a multi-tier web application that uses an Amazon Aurora MySQL DB cluster for storage.
The application tier is hosted on Amazon EC2 instances. The comp.......... mandate that the database credentials be encrypted and rotated every 14 days.
What should a solutions architect do to meet this requirement with the LEAST operational effort?

A. Store a file that contains the credentials in an AWS Key Management Service (AWS KMS) encrypted Amazon Elastic File System (Amazon EFS) file system. Mount........ instances of the application tier.
Restrict the access to the file on the file system so that the application can read the file and that only super users can modify the........ file function that rotates the key in Aurora every 14 days and writes new credentials into the file.
B. Create two parameters in AWS Systems Manager Parameter Store: one for the user name as a stinng parameter and one that uses the SecureString type for the ..........Management Service (AWS KMS) encryption for the password parameter, and load these parameters in the application tier. Implement an AWS Lambda function th days.
C. Store a file that contains the credentials in an AWS Key Management Service (AWS KMS) encrypted Amazon S3 bucket that the application uses to load the crede......... application regularly to ensure that the correct credentials are used. Implement an AWS Lambda function that rotates the Aurora credentials every 14 days and ....... in the S3 bucket.
D. Create a new AWS Key Management Service (AWS KMS) encryption key. Use AWS Secrets Manager to create a new secret that uses the KMS key with the appro........ secret with the Aurora DB cluster Configure a custom rotation period of 14 days.

Answer: B

NEW QUESTION # 392
......

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