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It is similar to the SAA-C03 desktop-based software, with all the elements of the desktop practice exam. This mock exam can be accessed from any browser and does not require installation. The AWS Certified Solutions Architect - Associate (SAA-C03) questions in the mock test are the same as those in the real exam. And candidates will be able to take the web-based AWS Certified Solutions Architect - Associate (SAA-C03) practice test immediately through any operating system and browsers.
| Section | Weight | Objectives |
|---|---|---|
| Design Resilient Architectures | 26% | - Design highly available and fault-tolerant architectures
|
| Design Cost-Optimized Architectures | 20% | - Design cost-effective compute and network solutions
|
| Design Secure Architectures | 30% | - Design secure workloads and applications
|
| Design High-Performing Architectures | 24% | - Design high-performance networking solutions
|
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NEW QUESTION # 874
A company uses a general-purpose instance class Amazon RDS for MySQL DB instance. The company has configured the DB instance in a Multi-AZ configuration across two Availability Zones as part of the company's production application.
The company's finance team needs to run SQL queries against the DB instance to generate reports. Customers have reported significant performance issues with the application during report generation.
A solutions architect needs to minimize the effect of the reporting job on the DB instance.
Which solution will meet these requirements?
Answer: C
Explanation:
The issue described is a classic case of read-heavy reporting workloads interfering with transactional application traffic. Although the RDS instance is configured for Multi-AZ, Multi-AZ deployments are designed for high availability and failover, not for scaling read performance. All reads and writes still occur on the primary instance, which explains why reporting queries negatively affect customer-facing performance.
Option C, adding an Amazon RDS read replica, is the most effective and AWS-recommended solution. Read replicas asynchronously replicate data from the primary instance and provide a separate endpoint for read- only workloads such as reporting, analytics, and dashboards. By redirecting the finance team's reporting queries to the replica endpoint, the primary database is freed to handle transactional workloads, significantly improving overall application performance.
Option A (RDS Proxy) helps manage database connections efficiently, especially for bursty workloads, but it does not offload query execution or isolate heavy read traffic. Option B is invalid because RDS Multi-AZ does not support spreading a single DB instance across three AZs, and even if it did, it would not reduce read contention. Option D increases instance resources but does not solve the root cause; reporting queries would still compete with production traffic and would also increase cost unnecessarily.
Therefore, C is the optimal solution because it isolates reporting workloads, scales read capacity, improves application responsiveness, and aligns with AWS best practices for high-performance database architectures.
NEW QUESTION # 875
A company has an API that receives real-time data from a fleet of monitoring devices. The API stores this data in an Amazon RDS DB instance for later analysis. The amount of data that the monitoring devices send to the API fluctuates. During periods of heavy traffic, the API often returns timeout errors.
After an inspection of the logs, the company determines that the database is not capable of processing the volume of write traffic that comes from the API. A solutions architect must minimize the number of connections to the database and must ensure that data is not lost during periods of heavy traffic.
Which solution will meet these requirements?
Answer: D
Explanation:
Explanation
Using Amazon SQS will help minimize the number of connections to the database, as the API will write data to a queue instead of directly to the database. Additionally, using an AWS Lambda function that Amazon SQS invokes to write data from the queue to the database will help ensure that data is not lost during periods of heavy traffic, as the queue will serve as a buffer between the API and the database.
NEW QUESTION # 876
[Design Cost-Optimized Architectures]
A company has an employee web portal. Employees log in to the portal to view payroll details. The company is developing a new system to give employees the ability to upload scanned documents for reimbursement. The company runs a program to extract text-based data from the documents and attach the extracted information to each employee's reimbursement IDs for processing.
The employee web portal requires 100% uptime. The document extract program runs infrequently throughout the day on an on-demand basis. The company wants to build a scalable and cost-effective new system that will require minimal changes to the existing web portal. The company does not want to make any code changes.
Which solution will meet these requirements with the LEAST implementation effort?
Answer: B
Explanation:
This solution offers the most scalable and cost-effective approach with minimal changes to the existing web portal and no code modifications.
Amazon EC2 On-Demand Instances in an Auto Scaling Group: Running the web portal on EC2 On-Demand instances ensures 100% uptime and scalability. The Auto Scaling group will maintain the desired number of instances, automatically scaling up or down as needed, ensuring high availability for the employee web portal.
AWS Lambda for Document Extraction: Lambda is a serverless compute service that allows you to run code in response to events without provisioning or managing servers. By using Lambda to run the document extraction program, you can trigger the function whenever an employee uploads a document. This approach is cost-effective since you only pay for the compute time used by the Lambda function.
No Code Changes Required: This solution integrates with the existing infrastructure with minimal implementation effort and does not require any modifications to the web portal's code.
Why Not Other Options?:
Option B (Spot Instances): Spot Instances are not suitable for workloads requiring 100% uptime, as they can be terminated by AWS with short notice.
Option C (Savings Plan): A Savings Plan could reduce costs but does not address the requirement for running the document extraction program efficiently or without code changes.
Option D (S3 with API Gateway and Lambda): This would require significant changes to the existing web portal setup, including moving the portal to S3 and reconfiguring its architecture, which contradicts the requirement of minimal implementation effort and no code changes.
AWS Reference:
Amazon EC2 Auto Scaling- Information on how to use Auto Scaling for EC2 instances.
AWS Lambda- Overview of AWS Lambda and its use cases.
NEW QUESTION # 877
[Design Secure Architectures]
A company has an organization in AWS Organizations that has all features enabled. The company has multiple Amazon S3 buckets in multiple AWS Regions around the world. The S3 buckets contain sensitive data.
The company needs to ensure that no personally identifiable information (PII) is stored in the S3 buckets. The company also needs a scalable solution to identify PII.
Which solution will meet these requirements?
Answer: B
Explanation:
Amazon Macie is a fully managed data security and data privacy service that uses machine learning and pattern matching to discover and protect sensitive data in AWS. To scale across Regions and accounts in AWS Organizations, Macie supports delegated administration, automated sensitive data discovery, and multi-account aggregation through a centralized admin account.
Reference:
NEW QUESTION # 878
A security team wants to limit access to specific services or actions in all of the team's AWS accounts. All accounts belong to a large organization in AWS Organizations. The solution must be scalable and there must be a single point where permissions can be maintained.
What should a solutions architect do to accomplish this?
Answer: D
Explanation:
Service control policies (SCPs) are one type of policy that you can use to manage your organization. SCPs offer central control over the maximum available permissions for all accounts in your organization, allowing you to ensure your accounts stay within your organization's access control guidelines. See https://docs.aws.amazon.com/organizations/latest/userguide/orgs_manage_policies_scp.html.
NEW QUESTION # 879
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