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Amazon AWS-Solutions-Architect-Associate Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Design Secure Architectures	30%	- Design secure workloads and applications 1. Secrets management (AWS Secrets Manager, SSM Parameter Store) 2. Data encryption at rest and in transit (KMS, TLS) - Design secure access to AWS resources 1. IAM users, roles, and policies 2. Cross-account access strategies 3. Least privilege access design
Topic 2: Design Cost-Optimized Architectures	16%	- Cost monitoring and optimization 1. Storage lifecycle policies (S3) 2. AWS Cost Explorer usage - Cost-aware resource selection 1. Right-sizing EC2 instances 2. Reserved Instances vs On-Demand vs Spot
Topic 3: Design High-Performing Architectures	24%	- Storage and database performance 1. RDS vs DynamoDB selection patterns 2. EBS, EFS, and S3 performance considerations - Compute optimization 1. Lambda serverless design patterns 2. EC2 instance selection and scaling
Topic 4: Design Resilient Architectures	30%	- Decoupling mechanisms 1. SQS for messaging 2. SNS for pub/sub notifications 3. Event-driven architectures - Highly available and fault-tolerant architectures 1. Auto Scaling strategies 2. Multi-AZ deployments 3. Load balancing (ELB, ALB, NLB)

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Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Sample Questions (Q476-Q481):

NEW QUESTION # 476
A company has created an image analysis application in which users can upload photos and add photo frames to their images. The users upload images and metadata to indicate which photo frames they want to add to their images. The application uses a single Amazon EC2 instance and Amazon DynamoDB to store the metadata.
The application is becoming more popular, and the number of users is increasing. The company expects the number of concurrent users to vary significantly depending on the time of day and day of week. The company must ensure that the application can scale to meet the needs of the growing user base.
Which solution meats these requirements?

A. Increase the number of EC2 instances to three. Use Provisioned IOPS SSD (io2) Amazon Elastic Block Store (Amazon EBS) volumes to store the photos and metadata.
B. Use AWS Lambda to process the photos. Store the photos in Amazon S3. Retain DynamoDB to store the metadata.
C. Use AWS Lambda to process the photos. Store the photos and metadata in DynamoDB.
D. Use Amazon Kinesis Data Firehose to process the photos and to store the photos and metadata.

Answer: B

Explanation:
Explanation
https://www.quora.com/How-can-I-use-DynamoDB-for-storing-metadata-for-Amazon-S3-objects This solution meets the requirements of scalability, performance, and availability. AWS Lambda can process the photos in parallel and scale up or down automatically depending on the demand. Amazon S3 can store the photos and metadata reliably and durably, and provide high availability and low latency. DynamoDB can store the metadata efficiently and provide consistent performance. This solution also reduces the cost and complexity of managing EC2 instances and EBS volumes.
Option A is incorrect because storing the photos in DynamoDB is not a good practice, as it can increase the storage cost and limit the throughput. Option B is incorrect because Kinesis Data Firehose is not designed for processing photos, but for streaming data to destinations such as S3 or Redshift. Option D is incorrect because increasing the number of EC2 instances and using Provisioned IOPS SSD volumes does not guarantee scalability, as it depends on the load balancer and the application code. It also increases the cost and complexity of managing the infrastructure.
References:
https://aws.amazon.com/certification/certified-solutions-architect-professional/
https://www.examtopics.com/discussions/amazon/view/7193-exam-aws-certified-solutions-architect-profe
https://aws.amazon.com/architecture/

NEW QUESTION # 477
A company must migrate 20 TB of data from a data centre to the AWS Cloud within 30 days. The company's network bandwidth is limited to 15 Mbps and cannot exceed 70% utilization.
What should a solutions architect do to meet these requirements?

A. Use a secure VPN connection.
B. Use AWS Snowball.
C. Use AWS DataSync
D. Use Amazon S3 Transfer Acceleration

Answer: B

NEW QUESTION # 478
In order for a table write to succeed, the provisioned throughput settings for the table and global secondary indexes, in DynamoDB, must have__________; otherwise, the write to the table will be throttled.

A. enough write capacity to accommodate the write
B. no additional write cost for the index
C. 100 bytes of overhead per index item
D. the size less than or equal to 1 KB

Answer: A

Explanation:
In order for a table write to succeed in DynamoDB, the provisioned throughput settings for the table and global secondary indexes must have enough write capacity to accommodate the write; otherwise, the write will be throttled.
Reference:
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/GSI.html

NEW QUESTION # 479
A company Is seeing access requests by some suspicious IP addresses. The security team discovers the requests are horn different IP addresses under the same CIDR range.
What should a solutions architect recommend to the team?

A. Add a deny rule in the outbound table of the network ACL with a tower rule number than other rules.
B. Add a deny rule in the Inbound table of the network ACL with a lower rule number than other rules.
C. Add a rule in the inbound table of the security group to deny the traffic from that CIDR range.
D. Add a rule In the outbound table of the security group to deny the traffic from that CIDR range

Answer: B

NEW QUESTION # 480
A company selves a dynamic website from a flee! of Amazon EC2 instances behind an Application Load Balancer (ALB) The website needs to support multiple languages to serve customers around the world The website's architecture is running in the us-west-1 Region and is exhibiting high request latency tor users that are located in other parts of the world The website needs to serve requests quickly and efficiently regardless of a user's location However the company does not want to recreate the existing architecture across multiple Regions What should a solutions architect do to meet these requirements?

A. Configure an Amazon CloudFront distribution with the ALB as the origin Set the cache behavior settings to cache based on the Accept-Language request header
B. Replace the existing architecture with a website that is served from an Amazon S3 bucket Configure an Amazon CloudFront distribution with the S3 bucket as the origin Set the cache behavior settings to cache based on the Accept-Language request header
C. Launch an EC2 instance in each additional Region and configure NGINX to act as a cache server for that Region Put all the EC2 instances and the ALB behind an Amazon Route 53 record set with a geolocation routing policy
D. Create an Amazon API Gateway API that is integrated with the ALB Configure the API to use the HTTP integration type Set up an API Gateway stage to enable the API cache based on the Accept-Language request header

Answer: A

Explanation:
Explanation
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/header-caching.html Configuring caching based on the language of the viewer: If you want CloudFront to cache different versions of your objects based on the language specified in the request, configure CloudFront to forward the Accept-Language header to your origin.

NEW QUESTION # 481
......

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