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Amazon SAA-C03 (Amazon AWS Certified Solutions Architect - Associate (SAA-C03)) certification exam is a highly sought-after credential for IT professionals who want to demonstrate their expertise in designing and deploying scalable, fault-tolerant, and highly available systems on Amazon Web Services (AWS) platform. AWS Certified Solutions Architect - Associate certification exam is designed to test candidates' knowledge of AWS services, architectural principles, and best practices for building secure and reliable applications on the cloud.
NEW QUESTION # 473
Question:
A genomics research company is designing a scalable architecture for a loosely coupled workload. Tasks in the workload are independent and can be processed in parallel. The architecture needs to minimize management overhead and provide automatic scaling based on demand.
Options:
Answer: A
Explanation:
For workloads where tasks are independent and can be processed in parallel, and where minimizing management overhead is a priority, a serverless architecture using AWS Lambda is ideal.
AWS Lambda allows you to run code without provisioning or managing servers. It automatically scales your application by running code in response to each trigger.
Parallel Processing: Lambda functions can process multiple tasks concurrently, making it suitable for parallel workloads.
Automatic Scaling: Lambda automatically scales by running code in response to each event, scaling precisely with the size of the workload.
Minimal Management Overhead: With Lambda, there's no need to manage the underlying infrastructure, reducing operational complexity.Wikipedia References:
AWS Lambda - Run Code Without Thinking About Servers
Best Practices for Designing and Architecting with AWS Lambda
NEW QUESTION # 474
A company stores a large volume of critical data in Amazon RDS for PostgreSQL tables. The company is developing several new features for an upcoming product launch. Some of the new features require many table alterations.
The company needs a solution to test the altered tables for several days. After testing, the solution must make the new features available to customers in production.
Which solution will meet these requirements with the HIGHEST availability?
Answer: C
Explanation:
Amazon RDS Blue/Green Deployments provide a safe and straightforward way to make database changes with minimal downtime and risk. Blue/Green deployments create an exact copy ("green") of your production environment ("blue") where you can make schema changes and run tests. After validation, you can promote the green environment to production with a single click or API call, achieving near-zero downtime and maximum availability. This is the AWS-recommended method for deploying major database changes in a way that minimizes impact to users and maximizes uptime.
Reference Extract from AWS Documentation / Study Guide:
"Amazon RDS Blue/Green Deployments enable you to make changes to your database environment safely.
You can perform schema updates and feature testing in a fully managed staging environment and switch over with minimal downtime, ensuring the highest availability." Source: AWS Certified Solutions Architect - Official Study Guide, Database and Migration section; Amazon RDS Blue/Green Deployments Documentation.
NEW QUESTION # 475
A company has an Amazon S3 data lake that is governed by AWS Lake Formation The company wants to create a visualization in Amazon QuickSight by joining the data in the data lake with operational data that is stored in an Amazon Aurora MySQL database The company wants to enforce column-level authorization so that the company's marketing team can access only a subset of columns in the database Which solution will meet these requirements with the LEAST operational overhead?
Answer: B
NEW QUESTION # 476
A company has an ordering application that stores customer information in Amazon RDS for MySQL. During regular business hours, employees run one-time queries for reporting purposes. Timeouts are occurring during order processing because the reporting queries are taking a long time to run. The company needs to eliminate the timeouts without preventing employees from performing queries.
Answer: C
Explanation:
Comprehensive and Detailed
Amazon RDS for MySQL supports the creation of read replicas, which are read-only copies of the primary database instance. By offloading read-heavy operations, such as reporting queries, to a read replica:
Performance Improvement: The primary DB instance is relieved from the additional load, reducing the likelihood of timeouts during order processing.
Data Consistency: Read replicas use asynchronous replication, ensuring that they have up-to-date data for accurate reporting.
Scalability: Multiple read replicas can be created to handle increased read traffic.
This approach allows employees to continue running necessary reports without impacting the performance of the ordering application.
NEW QUESTION # 477
A company runs a high-traffic web application that has a three-tier architecture consisting of a web layer, an application layer, and a database layer. The web layer and application layer run on Amazon EC2 instances behind an Application Load Balancer (ALB). The application layer is stateless and supports automatic scaling. The database layer uses Amazon RDS for MySQL in a Multi-AZ configuration and relies on a relational architecture.
The company is preparing for a large marketing event that is expected to drive a sharp increase in read traffic. The company must ensure that the application remains highly available and responsive under load. The company wants to scale the application's architecture components but does not want to modify the application.
Which combination of solutions will meet these requirements? (Select THREE.)
Answer: B,C,E
Explanation:
The correct answers are A, B, and C because the company needs to handle a sharp increase inread traffic, maintain high availability, and avoid application changes. These three options improve scaling at different layers of the architecture while remaining aligned with the current application design.
A). Amazon CloudFronthelps reduce load on the web tier by caching content closer to users at edge locations. This improves responsiveness and reduces the number of requests that must reach the origin web servers during the marketing event. It is a common way to scale web traffic without changing the application.
B). Auto Scaling for the application layeris also appropriate because the application layer is already described as stateless and supports automatic scaling. Adding or removing EC2 instances based on demand helps the application remain responsive under high load.
C). Amazon Aurora with Aurora Replicas and Aurora Auto Scalingis the best way to scale the relational database layer for read-heavy workloads. Aurora Replicas can offload read traffic from the writer instance, and Aurora Auto Scaling can automatically adjust replica capacity based on demand. This preserves the relational architecture while improving read scalability and availability.
NEW QUESTION # 478
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