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Amazon AWS-Solutions-Associate Exam Syllabus Topics:

Section	Weight	Objectives
Design Secure Architectures	30%	- Design secure workloads and applications 1. Network security controls 2. Data encryption 3. Secure application integration - Design secure access to AWS resources 1. Least privilege access 2. Identity and access management 3. Authentication and authorization mechanisms - Determine appropriate data security controls 1. Key management 2. Data protection at rest 3. Data protection in transit
Design Resilient Architectures	26%	- Design scalable and loosely coupled architectures 1. Elastic scaling 2. Event-driven architectures 3. Decoupled services - Design highly available and fault-tolerant architectures 1. Backup and recovery 2. Disaster recovery planning 3. Multi-AZ and multi-region strategies
Design High-Performing Architectures	24%	- Determine high-performing database and network architectures 1. Network performance optimization 2. Caching strategies 3. Database service selection - Design high-performing compute solutions 1. Serverless architectures 2. Compute service selection 3. Performance optimization - Determine high-performing and scalable storage solutions 1. File storage 2. Block storage 3. Object storage
Design Cost-Optimized Architectures	20%	- Design cost-optimized storage solutions 1. Storage class selection 2. Lifecycle management - Design cost-optimized compute, database, and network solutions 1. Cost monitoring and optimization 2. Pricing models 3. Resource right-sizing

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Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Sample Questions (Q439-Q444):

NEW QUESTION # 439
A company has a three-tier application for image sharing. The application uses an Amazon EC2 instance for the front-end layer, another EC2 instance for the application layer, and a third EC2 instance for a MySQL database. A solutions architect must design a scalable and highly available solution that requires the least amount of change to the application.
Which solution meets these requirements?

A. Use load-balanced Multi-AZ AWS Elastic Beanstalk environments for the front-end layer and the application layer. Move the database to an Amazon RDS DB instance with multiple read replicas to serve users' images.
B. Use load-balanced Multi-AZ AWS Elastic Beanstalk environments for the front-end layer and the application layer. Move the database to an Amazon RDS Multi-AZ DB instance. Use Amazon S3 to store and serve users' images.
C. Use Amazon S3 to host the front-end layer. Use AWS Lambda functions for the application layer.
Move the database to an Amazon DynamoDB table. Use Amazon S3 to store and serve users' images.
D. Use Amazon S3 to host the front-end layer. Use a fleet of EC2 instances in an Auto Scaling group for the application layer. Move the database to a memory optimized instance type to store and serve users' images.

Answer: B

Explanation:
for "Highly available": Multi-AZ & for "least amount of changes to the application": Elastic Beanstalk automatically handles the deployment, from capacity provisioning, load balancing, auto-scaling to application health monitoring

NEW QUESTION # 440
A company wants to run an in-memory database for a latency-sensitive application that runs on Amazon EC2 instances. The application processes more than 100,000 transactions each minute and requires high network throughput. A solutions architect needs to provide a cost-effective network design that minimizes data transfer charges.
Which solution meets these requirements?

A. Launch all EC2 instances in the same Availability Zone within the same AWS Region. Specify a placement group with cluster strategy when launching EC2 instances.
B. Launch all EC2 instances in different Availability Zones within the same AWS Region. Specify a placement group with partition strategy when launching EC2 instances.
C. Deploy an Auto Scaling group to launch EC2 instances in different Availability Zones based on a network utilization target.
D. Deploy an Auto Scaling group with a step scaling policy to launch EC2 instances in different Availability Zones.

Answer: A

Explanation:
* Launching instances within a single AZ and using a cluster placement group provides the lowest network latency and highest bandwidth between instances. This maximizes performance for an in-memory database and high-throughput application.
* Communications between instances in the same AZ and placement group are free, minimizing data transfer charges. Inter-AZ and public IP traffic can incur charges.
* A cluster placement group enables the instances to be placed close together within the AZ, allowing the high network throughput required. Partition groups span AZs, reducing bandwidth.
* Auto Scaling across zones could launch instances in AZs that increase data transfer charges. It may reduce network throughput, impacting performance.

NEW QUESTION # 441
Which of the following items are required to allow an application deployed on an EC2 instance to write data to a DynamoDB table? Assume that to security keys are allowed to be stored on the EC2 instance.

A. Add an IAM user to a running EC2 instance
B. Create an IAM role that allows write access to the dynamoDB table
C. Launch an EC2 instance with the IAM user included in the launch configuration
D. Launch an EC2 instance with the IAM role included in the launch configuration
E. Create an IAM user that allows write access to the DynamoDB table
F. Add an IAM role to a running EC2 instance

Answer: B,D

NEW QUESTION # 442
A company's website uses an Amazon EC2 instance store for its catalog of items. The company wants to make sure that the catalog is highly available and that the catalog is stored in a durable location.
What should a solutions architect do to meet these requirements?

A. Move the catalog to an Amazon Elastic File System (Amazon EFS) file system.
B. Deploy a larger EC2 instance with a larger instance store.
C. Move the catalog to Amazon ElastiCache for Redis.
D. Move the catalog from the instance store to Amazon S3 Glacier Deep Archive.

Answer: A

Explanation:
Explanation
Moving the catalog to an Amazon Elastic File System (Amazon EFS) file system provides both high availability and durability. Amazon EFS is a fully-managed, highly-available, and durable file system that is built to scale on demand. With Amazon EFS, the catalog data can be stored and accessed from multiple EC2 instances in different availability zones, ensuring high availability. Also, Amazon EFS automatically stores files redundantly within and across multiple availability zones, making it a durable storage option.

NEW QUESTION # 443
Organizers for a global event want to put daily reports online as static HTML pages. The pages are expected to generate millions of views from users around the world. The files are stored In an Amazon S3 bucket. A solutions architect has been asked to design an efficient and effective solution.
Which action should the solutions architect take to accomplish this?

A. Generate presigned URLs for the files.
B. Use cross-Region replication to all Regions.
C. Use the geoproximtty feature of Amazon Route 53.
D. Use Amazon CloudFront with the S3 bucket as its origin.

Answer: D

Explanation:
Explanation
Amazon CloudFront is a content delivery network (CDN) that speeds up the delivery of static and dynamic web content, such as HTML pages, images, and videos. By using CloudFront, the HTML pages will be served to users from the edge location that is closest to them, resulting in faster delivery and a better user experience.
CloudFront can also handle the high traffic and large number of requests expected for the global event, ensuring that the HTML pages are available and accessible to users around the world.

NEW QUESTION # 444
......

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